INSTRUMENTATION · 01Stainless Steel Instrument Tubing
Seamless or welded TP316/316L tubes from 1/8 in to 2 in for instrument impulse lines, sampling, hydraulic and control-air lines.
TP316 / 316L1/8 in – 2 inSeamless / welded
PRODUCTS · INSTRUMENTATION · TUBING & FITTINGS · UAE
High-Integrity Instrumentation for Oil, Gas & EPC Contractors
Gasify Middle East supplies stainless steel instrument tubing and tube fittings from 1/8 in to 2 in in TP316/316L, instrumentation valves and manifolds, and copper tubes and fittings from 1/8 in to 8-1/8 in, with pressure gauges, thermowells and field instruments sourced on enquiry. Products come from established manufacturers in Europe, India and Korea, supplied against your MTO or datasheet with material test certificates and traceability.
Built for project procurement: we match tube, fittings and valves to one fitting system, confirm sources against your project specification, and support ADNOC, Saudi Aramco and other client-specification enquiries across the UAE, GCC, Middle East, Africa and South Asia.
ASTM A269TP316/316LASTM B88ASTM
B280ASME B31.3IEC 61518EN 837-1EN 10204 3.1
01 / INSTRUMENTATION RANGE
Complete Instrumentation Solutions
From TP316/316L tube and compression fittings to manifolds, copper tube and field instruments, sourced against your datasheet and fitting system.
INSTRUMENTATION · 01
INSTRUMENTATION · 02Instrument Tube Fittings
Compression tube fittings in TP316/316L from 1/8 in to 2 in: unions, elbows, tees, connectors, adaptors, caps and plugs.
TP316 / 316L1/8 in – 2 inNPT / BSP
INSTRUMENTATION · 03Instrumentation Valves
Needle, instrument ball, check, gauge and bleed valves for isolation, regulation, venting and sampling on instrument lines.
NeedleBallCheck / gauge
INSTRUMENTATION · 04Valve Manifolds & DBB Valves
Two, three and five-valve manifolds for differential pressure transmitters, and double block and bleed valves for instrument root isolation.
2 / 3 / 5-valveDBBIEC 61518
INSTRUMENTATION · 05Copper Tubes & Fittings
Copper tubes and fittings from 1/8 in to 8-1/8 in OD to ASTM B88, B306 and B280 for air, water, refrigeration and utility lines.
ASTM B88B306B280
INSTRUMENTATION · 06Pressure Gauges & Accessories
Bourdon tube pressure gauges with siphons, snubbers, gauge valves and diaphragm seals for local pressure indication.
EN 837-1Glycerine filledDiaphragm seal
INSTRUMENTATION · 07Thermowells & Temperature Instruments
Flanged, threaded and weld-in thermowells, RTDs, thermocouples and temperature gauges, sized for process and wake-frequency conditions.
ThermowellPt100 / TCPTC 19.3 TW
INSTRUMENTATION · 08Transmitters & Field Instruments
Pressure, differential pressure, temperature and level transmitters sourced to the datasheet on enquiry, with hazardous-area and SIL options.
4–20 mA HARTATEX / IECExSIL
02 / SPECIFICATIONS
Product Data & Industry Standards
Typical supply ranges. Availability depends on product, size, material and quantity, and is confirmed for every RFQ.
| Product | Standard | Material / grade | Size & rating | Typical use |
|---|---|---|---|---|
| Seamless instrument tubing | ASTM A269; ASTM A213 | TP316, TP316L (dual-certified 316/316L on request) | 1/8 in to 2 in OD; wall per tube table | Impulse, sampling, control-air and hydraulic lines |
| Welded instrument tubing | ASTM A269 | TP316, TP316L | 1/8 in to 2 in OD | General instrument and utility tubing where seamless is not required |
| Stainless tubing, 304 / 304L | ASTM A269 | TP304, TP304L | 1/8 in to 2 in OD | Non-chloride service, utility and general instrument lines |
| Duplex and super duplex tubing | ASTM A789; ASTM A790 (pipe) | UNS S31803 / S32205, S32750 | On enquiry | Offshore and seawater instrument lines |
| Nickel alloy tubing | ASTM B163; B167; B165 | Alloy 625, 825, 400, 600 | On enquiry | Severe corrosion and high-temperature service |
| Super austenitic tubing | ASTM A269 / A213 | 6Mo (S31254), 904L | On enquiry | Chloride and seawater instrument lines |
State grade, seamless or welded, OD and wall thickness, tube condition (annealed or BA), maximum hardness and length in the RFQ. Sizes outside 1/8 in to 2 in are sourced on enquiry.
| Product | Standard | Material / grade | Size & rating | Typical use |
|---|---|---|---|---|
| Union, connector and bulkhead connector | Manufacturer standard; tube to ASTM A269 | TP316/316L bar stock (ASTM A182, A479, A276) | 1/8 in to 2 in tube OD | Joining tube to tube, port and panel |
| Male and female connector, NPT | ASME B1.20.1 thread; manufacturer standard | TP316/316L | 1/8 in to 2 in tube OD; 1/8 to 2 in NPT | Tube to instrument or process port |
| Male and female connector, BSP | ISO 7-1 (taper); ISO 228-1 (parallel) | TP316/316L | 1/8 in to 2 in tube OD | Tube to BSPT or BSPP ports |
| Elbow, tee, cross and run tee | Manufacturer standard | TP316/316L | 1/8 in to 2 in tube OD | Direction changes and branches in tube runs |
| Reducing union and tube adaptor | Manufacturer standard | TP316/316L | Size changes within 1/8 in to 2 in | Size reduction between tube sizes |
| Cap, plug, port connector | Manufacturer standard | TP316/316L | 1/8 in to 2 in | Line closure and port plugging |
| Weld fittings, pipe to tube | ASME B16.11; manufacturer standard | TP316/316L, A182 F316/F316L | As per size | Welded transitions from pipe to tubing |
| Duplex, 6Mo and alloy fittings | Manufacturer standard | S31803, S32750, 6Mo, Alloy 625, 400 | On enquiry | Offshore and severe corrosion service |
Compression fittings from different manufacturers are not interchangeable. Order tube, fittings and valves for the same fitting system and state it in the RFQ.
| Product | Standard | Material / grade | Size & rating | Typical use |
|---|---|---|---|---|
| Needle valve | Manufacturer standard; ASME B16.34 where specified | 316 SS bar stock; PTFE or graphite packing | Typically 413 bar (6,000 psig) at ambient and higher on high-pressure designs | Flow regulation, isolation and venting |
| Instrument ball valve, 1-pc / 2-pc / 3-pc | Manufacturer standard; ISO 17292 | 316 SS; PTFE, PEEK or reinforced seats | Typically up to 413 bar at ambient on 2-piece designs | Quick isolation of instrument and sampling lines |
| Check valve, instrument | Manufacturer standard | 316 SS; FKM, FFKM or PTFE seals | Cracking pressure per design | Prevents back flow in sampling and injection lines |
| Gauge valve and bleed valve | Manufacturer standard | 316 SS | NPT or compression ends | Isolation and venting for pressure gauges and transmitters |
| Needle valve, steam and high-temperature | Manufacturer standard | 316 SS, graphite packing | Per temperature rating | Steam, hot oil and condensate instrument lines |
| Manifold, 2-valve / 3-valve / 5-valve | IEC 61518 (mating dimensions); ASME B16.5 flanges | 316 SS, duplex on request | Per manufacturer rating, up to 413 bar typical | DP transmitter hook-up: block, equalising and vent valves |
| Double block and bleed (DBB) valve | ASME B16.34; ASME B16.5; monoflange | 316 SS, A105, duplex on request | Class 150 to 2500 per ASME B16.5 flange | Root isolation of instrument tappings and sample points |
Pressure ratings fall as temperature rises and depend on the valve design, so confirm against the manufacturer's rating table. The system rating is the lowest of the tube, fitting and valve ratings.
| Product | Standard | Material / grade | Size & rating | Typical use |
|---|---|---|---|---|
| Copper water tube, Types K, L, M | ASTM B88 | C12200 (DHP copper) | 1/8 in to 8-1/8 in OD (per B88 sizes); hard drawn straight or annealed coil | Water, fuel, compressed air and utility lines |
| Copper drainage tube (DWV) | ASTM B306 | C12200 | Per B306 sizes | Drain, waste and vent systems |
| Copper tube for air conditioning and refrigeration (ACR) | ASTM B280 | C12200; cleaned and capped | Per B280 sizes; coil or straight | HVAC&R and refrigeration systems |
| Wrought copper solder-joint fittings | ASME B16.22 | Wrought copper | Per tube size | Solder or braze joints on copper tube |
| Cast copper alloy solder-joint fittings | ASME B16.18 | Cast copper alloy | Per tube size | Solder or braze joints on copper tube |
| Flare fittings for copper tube | ASME B16.26 | Cast copper alloy / brass | Per tube size | Flared connections for refrigeration and gas |
| Brass compression fittings | Manufacturer standard | Brass (CW614N / C36000) | Per tube size | Utility air, water and low-pressure lines |
Copper tubes and fittings are available from 1/8 in to 8-1/8 in. State the tube type (K, L, M), temper (hard drawn or annealed), length or coil, and joining method in the RFQ.
| Product | Standard | Material / grade | Size & rating | Typical use |
|---|---|---|---|---|
| Bourdon tube pressure gauge | EN 837-1; ASME B40.100 | 316 SS wetted parts and case; glycerine or silicone filled | 63, 100 and 150 mm dials; accuracy class 1.0 to 0.5 | Local pressure indication in process and utility lines |
| Safety pattern gauge | EN 837-1 (S3) | 316 SS; solid front and blow-out back | 100 and 150 mm dials | High-pressure or hazardous-fluid service |
| Gauge siphon (pigtail) and snubber | Manufacturer standard | 316 SS | NPT or G ends | Protects gauges from steam, heat and pulsation |
| Diaphragm seal and gauge assembly | EN 837-3 | 316 SS, Hastelloy, Monel and tantalum diaphragms on request | Per assembly | Viscous, corrosive and clogging media |
| Bi-metal and gas-actuated temperature gauge | EN 13190 | 316 SS case and stem | 63, 100 and 150 mm dials | Local temperature indication |
| Thermowell, flanged / threaded / weld-in | ASME PTC 19.3 TW; DIN 43772 | A479 316/316L, duplex, Alloy 625 on request | Straight, tapered and stepped shanks; ASME B16.5 flanges | Protects sensors and allows removal without process shutdown |
| RTD Pt100 and thermocouple | IEC 60751; IEC 60584 | Pt100 class A / B; thermocouple types K, J, T, N, E | Insert length per thermowell | Process temperature measurement and control |
State the range, dial size, process connection, case material, fill fluid and accuracy class for gauges. For thermowells, give the process connection, immersion length, flow velocity and fluid so the wake-frequency check can be done.
| Product | Standard | Material / grade | Size & rating | Typical use |
|---|---|---|---|---|
| Pressure transmitter | IEC 60770; IEC 61298 | 316L diaphragm; Hastelloy and tantalum on request | 4–20 mA HART; range per datasheet | Process pressure measurement and control |
| Differential pressure transmitter | IEC 61518 (manifold mounting) | 316L diaphragm; remote seal options | 4–20 mA HART; range per datasheet | Flow, level and filter differential |
| Temperature transmitter | IEC 60751; IEC 60584 | Head-mount or rail-mount | 4–20 mA HART or fieldbus | Converts RTD and thermocouple signals |
| Level instruments | Manufacturer standard | Per datasheet | Differential, radar and displacer types on enquiry | Tank and vessel level |
| Hazardous-area certification | IEC 60079; ATEX; IECEx | Ex d, Ex ia, Ex e | Per datasheet and zone | Zone 1 and Zone 2 installations |
| Functional safety | IEC 61508; IEC 61511 | SIL-capable instruments | SIL 2 / SIL 3 on enquiry | Safety instrumented systems |
Transmitters and field instruments are sourced from manufacturers on enquiry against the instrument datasheet, including range, output, wetted material, hazardous-area zone and SIL requirement.
| Item | Options | Notes | ||
|---|---|---|---|---|
| Tube sizes | Fractional 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1-1/2 and 2 in OD; metric 3 to 50 mm on request | Mixed fractional and metric systems need matching fittings | ||
| Tube condition | Annealed (soft), bright annealed (BA) or pickled | Fitting manufacturers specify maximum tube hardness. State it in the RFQ | ||
| Wall thickness | Common walls 0.028 to 0.134 in (0.7 to 3.4 mm) | Wall decides working pressure. See the tube pressure table | ||
| Fitting compatibility | Tube fittings from different manufacturers are not interchangeable | Order tube, fittings and valves for the same fitting system | ||
| End connections | Compression, NPT (ASME B1.20.1), BSPT (ISO 7-1), BSPP (ISO 228-1), socket weld, flanged | State the thread and sealing method in the RFQ | ||
| Length and packing | Straight lengths of 6 m (20 ft) and coils on request; end-capped and bagged | Cleaning for oxygen and special service on enquiry | ||
| Certification | EN 10204 3.1 for tube, fittings and valve body materials; heat-code marking | Calibration certificates for gauges and transmitters | ||
| Tube OD | OD (mm) | Wall (in) | Wall (mm) | ID (mm) | Calc. working pressure (bar) | (psig) |
|---|---|---|---|---|---|---|
| 1/8 in | 3.17 | 0.028 | 0.71 | 1.75 | 660 | 9,570 |
| 1/8 in | 3.17 | 0.035 | 0.89 | 1.40 | 870 | 12,610 |
| 1/4 in | 6.35 | 0.035 | 0.89 | 4.57 | 385 | 5,580 |
| 1/4 in | 6.35 | 0.049 | 1.24 | 3.86 | 565 | 8,190 |
| 1/4 in | 6.35 | 0.065 | 1.65 | 3.05 | 790 | 11,450 |
| 3/8 in | 9.53 | 0.035 | 0.89 | 7.75 | 245 | 3,550 |
| 3/8 in | 9.53 | 0.049 | 1.24 | 7.04 | 355 | 5,140 |
| 3/8 in | 9.53 | 0.065 | 1.65 | 6.22 | 490 | 7,100 |
| 1/2 in | 12.70 | 0.049 | 1.24 | 10.21 | 260 | 3,770 |
| 1/2 in | 12.70 | 0.065 | 1.65 | 9.40 | 355 | 5,140 |
| 1/2 in | 12.70 | 0.083 | 2.11 | 8.48 | 465 | 6,740 |
| 3/4 in | 19.05 | 0.065 | 1.65 | 15.75 | 225 | 3,260 |
| 3/4 in | 19.05 | 0.083 | 2.11 | 14.83 | 295 | 4,270 |
| 3/4 in | 19.05 | 0.109 | 2.77 | 13.51 | 400 | 5,800 |
| 1 in | 25.40 | 0.083 | 2.11 | 21.18 | 215 | 3,110 |
| 1 in | 25.40 | 0.109 | 2.77 | 19.86 | 290 | 4,200 |
| 1 in | 25.40 | 0.134 | 3.40 | 18.59 | 365 | 5,290 |
| 1-1/2 in | 38.10 | 0.083 | 2.11 | 33.88 | 140 | 2,030 |
| 1-1/2 in | 38.10 | 0.109 | 2.77 | 32.56 | 190 | 2,750 |
| 1-1/2 in | 38.10 | 0.134 | 3.40 | 31.29 | 235 | 3,400 |
| 2 in | 50.80 | 0.083 | 2.11 | 46.58 | 105 | 1,520 |
| 2 in | 50.80 | 0.109 | 2.77 | 45.26 | 140 | 2,030 |
| 2 in | 50.80 | 0.134 | 3.40 | 43.99 | 170 | 2,460 |
Calculated for TP316 seamless tube at ambient temperature using the ASME B31.3 straight-pipe equation, an allowable stress of 138 MPa (20 ksi) and a 10% wall tolerance, rounded down. The fitting and valve manufacturers' ratings govern the system. Welded tube, other grades and higher temperatures lower these values.
03 / MATERIALS
Metallurgy & Material Grades
Material choice decides corrosion resistance, strength and the fitting system that can be used.
| Material | Standard | Suitable for | Notes |
|---|---|---|---|
| Stainless steel TP316 / TP316L | ASTM A269 tube; A182, A479 fittings | General instrument service, chloride resistance to moderate levels | Standard for process and offshore instrument lines (not suitable for hot chloride) |
| Stainless steel TP304 / TP304L | ASTM A269 | Non-chloride service | Lower cost, lower pitting resistance than 316 |
| Duplex 2205 and super duplex 2507 | ASTM A789; A182 F51 / F53 | Seawater and high-chloride service | Higher strength and chloride cracking resistance |
| 6Mo / 904L | ASTM A269 / A213 | High-chloride and acid service | Between 316 and duplex in corrosion resistance |
| Alloy 625, 825, 400 | ASTM B163 / B167 / B165 | Severe corrosion, high temperature and sour service | Specified for aggressive media and high temperature |
| Copper C12200 | ASTM B88 / B306 / B280 | Water, air, refrigeration and non-corrosive utility lines | Not for ammonia, acetylene or sulphide-bearing media |
| Brass and bronze | Manufacturer standard | Low-pressure utility, air and water | Not suitable for sour, seawater or corrosive instrument service |
General guidance only. The medium, temperature, chloride content and the project material specification decide the final grade.
04 / INSTRUMENTATION SELECTION GUIDE
Precision Material Selection for High-Integrity Fluid Systems
A quick reference for common instrumentation needs. Final selection follows the project instrument hook-up drawings and specification.
| Instrument need | Product | Typical material | Standard | Notes |
|---|---|---|---|---|
| Impulse and sensing line from process to transmitter | 316/316L seamless tubing, tube fittings and root valve | TP316/316L | ASTM A269; ASME B31.3 | Use annealed tube and fittings from one manufacturer |
| Seawater, offshore or high-chloride instrument lines | Duplex, super duplex or 6Mo tubing and fittings | S32205, S32750, 6Mo | ASTM A789; A182 | 316 can crevice-corrode in warm chloride, check the PREN requirement |
| Sour (H₂S) service instrument lines | NACE-compliant 316L tubing, fittings and valves | TP316L, annealed | NACE MR0175 / ISO 15156 | Hardness limits apply to tube, fittings and bolting |
| DP transmitter flow or level hook-up | Three- or five-valve manifold | 316 SS | IEC 61518 | Direct-mount or remote-mount, with vent and equalising valves |
| Isolate an instrument tapping from the process line | DBB valve or needle valve at the root | 316 SS, A105 | ASME B16.34; B16.5 | DBB gives positive isolation with a bleed between two seats |
| Local pressure reading | Liquid-filled Bourdon gauge with gauge valve | 316 SS | EN 837-1 | Add a siphon on steam and hot service, and a snubber on pulsating lines |
| Viscous, corrosive or clogging media at a gauge | Diaphragm seal with gauge | 316 SS, Hastelloy | EN 837-3 | Fill fluid and temperature range must suit the application |
| Process temperature measurement | Thermowell with Pt100 or thermocouple | 316L, duplex, Alloy 625 | ASME PTC 19.3 TW; IEC 60751 | Check wake-frequency limits for the flow velocity and the well length |
| Air, water or refrigerant utility lines | Copper tube and fittings | C12200 | ASTM B88 / B280; ASME B16.22 | Not for ammonia or sulphide-bearing media |
| High-pressure small-bore connections | Tube fittings with needle or ball valves | 316 SS | ASTM A269; manufacturer ratings | The system rating is the lowest of tube, fitting and valve |
05 / TUBE PRESSURE CHECK
Pressure Rating Calculator
A first-pass check using the ASME B31.3 straight-pipe equation. Enter the tube size, wall and material to see the calculated working pressure.
P = 2 · S · E · t ÷ (D − 2 · Y · t)
t = wall × (1 − tolerance), Y = 0.4
t = wall × (1 − tolerance), Y = 0.4
CALCULATED WORKING PRESSURE0.0bar
CALCULATED WORKING PRESSURE0psig
TUBE INSIDE DIAMETER0.00mm
UTILISATION AT DESIGN PRESSURE0%
A first-pass check at ambient temperature only. Fitting, valve and gauge ratings are set by their manufacturers and can be lower than the tube, and allowable stress falls as temperature rises. Confirm against ASME B31.3 Table A-1 and the manufacturer's data. Send the instrumentation list for a quotation →
06 / ADNOC & SAUDI ARAMCO PROJECT SUPPLY
Upstream & Downstream Specification Compliance
Major NOC and EPC projects define the tubing grade, fitting system, testing and vendor requirements. We work to those documents.
From MTO to a compliant quotation.
Before quoting, we check the enquiry against the documents that drive instrumentation compliance on NOC-linked projects.
- Instrument hook-up drawings, material requisition, MTO and datasheet review
- Tube grade, wall, hardness and fitting system compatibility
- Client and company specification requirements, including ADNOC and Saudi Aramco documents where the project calls for them
- Approved manufacturer or vendor list (AVL) requirements for the proposed source
- Sour service, hazardous area, SIL and special testing clauses
Traceability that travels with the product.
Documentation follows the purchase order and the project specification, with clear heat-number and heat-code traceability.
- EN 10204 3.1 material test certificates, and 3.2 where specified
- Third-party inspection coordination where the project requires it
- PMI, hardness, pressure test and calibration records as specified
- Ex, SIL and IP certificates for field instruments
- Packing list and shipping documents compiled for the client's records
Important: Gasify supports procurement against ADNOC, Saudi Aramco
and other client specifications. Product compliance, approved-source requirements and documentation are
reviewed for each project, and Gasify does not represent an approval or vendor-registration status.
07 / STANDARDS & CODES
Governed by Global Standards.
A269 · A213 · A789
Seamless and welded austenitic, ferritic and duplex stainless tubing.
B163 · B167 · B165
Seamless nickel and nickel alloy tubes.
B88 · B306 · B280
Copper water, drainage and air-conditioning/refrigeration tube.
A182 · A479 · A276
Forged and bar materials for fittings, valves and thermowells.
B31.3 · B16.5 · B16.34 · B16.22
Process piping design, flanges, valve ratings and copper fittings.
ASME B1.20.1 · ISO 7-1 · ISO 228-1
NPT, BSP taper and BSP parallel pipe threads.
IEC 61518
Mating dimensions for DP transmitters and flanged valve manifolds.
EN 837-1 · EN 837-3 · ASME B40.100
Bourdon gauges, diaphragm seals and US gauge standard.
ASME PTC 19.3 TW · DIN 43772 · IEC 60751 · 60584
Thermowell design, RTD and thermocouple standards.
IEC 60079 · ATEX · IECEx
Explosion protection of electrical field instruments.
IEC 61508 · IEC 61511
SIL requirements for safety instrumented systems.
NACE MR0175 / ISO 15156 · EN 10204 3.1
Material requirements and inspection certificates.
08 / TESTING & DOCUMENTATION
Pre-Agreed Testing & Certification: Zero Ambiguity on Delivery
Tests and documents depend on the product standard, purchase order and applicable project specification.
Tube hydrostatic / NDE test
Each tube tested by hydrostatic or non-destructive electric test as required by ASTM A269, plus flaring and flattening tests.
Chemical & mechanical tests
Heat analysis, tensile, yield, elongation and hardness against the tube and fitting material specifications.
Corrosion & PMI tests
Positive material identification, and ASTM A262 intergranular corrosion tests for stainless tube where specified.
Pressure & leak testing
Shell and seat testing of valves and manifolds, and helium or gas leak testing of fittings where specified.
Calibration & certification
Calibration certificates for gauges and transmitters, and Ex, SIL and IP certificates for field instruments.
MTC, traceability & TPI
EN 10204 3.1 certificates with heat numbers, heat-code marking of fittings and third-party inspection coordination.
09 / APPLICATIONS
Engineered For Critical Service
Upstream oil & gas
Wellhead, manifold and separator instrument lines, chemical injection and sampling.
Refining & petrochemical
Impulse lines, DP transmitter hook-ups and analyser sample lines.
Offshore & marine
Duplex and 316L tubing, and fittings for platforms, FPSOs and vessels.
Power generation
Steam and water instrument lines, thermowells and gauge assemblies.
LNG & cryogenic
Stainless tube systems and valves for low-temperature instrumentation.
Water & desalination
Dosing, sampling and instrument air lines in stainless and copper.
Skids & packages
Tube, fittings, valves and manifolds for instrument skids and control panels.
HVAC, refrigeration & utilities
Copper tube and fittings for air, water and refrigerant lines.
10 / WHY GASIFY
Project-aligned Instrumentation Sourcing
- Tube, fittings and valves quoted from different makes with no fitting-system check
- Tube hardness and wall found unsuitable after delivery
- Tubing, valves and pipe fittings quoted separately
- Approved-source requirements discovered late in the process
- Hook-up drawings and datasheets reviewed, with tube, fittings and valves matched before quotation
- MTC, traceability and TPI requirements aligned with the order
- Tubing, valves, fittings, flanges and pipes consolidated in one package
- AVL and vendor requirements checked at quotation stage
11 / INSTRUMENTATION SUPPLIER IN THE UAE
Instrumentation tubing, fittings and valves supplier in Abu Dhabi and Dubai.
Gasify Middle East Trading LLC is a UAE-based industrial supplier and stockist of stainless steel instrument tubing, tube fittings, instrumentation valves and copper tubes and fittings. From offices in Abu Dhabi and Dubai we support EPC contractors, instrument fabricators, skid packagers and plant procurement teams in oil and gas, petrochemical, refining, power generation and water.
We have reliable manufacturers in Europe, India and Korea to support bulk requirements of stainless steel tubes, tube fittings, instrumentation valves, and copper tubes and fittings. Stainless tubes and tube fittings are supplied from 1/8 in to 2 in in TP316/316L, seamless or welded, and copper tubes and fittings from 1/8 in to 8-1/8 in to ASTM B88, B306 and B280.
ADNOC instrumentation supplier and Saudi Aramco instrumentation supplier support
Projects in the UAE, Saudi Arabia and the wider GCC often reference ADNOC or Saudi Aramco specifications, approved manufacturer lists and inspection requirements. Gasify reviews these requirements against the products you need, coordinates the documentation and inspection called for by the order, and supports the RFQ from technical clarification to delivery. Approval status is never assumed. Requirements are confirmed against each project's documents.
Stainless steel instrument tubing and tube fittings
Seamless and welded tubing to ASTM A269 in TP316 and TP316L, and compression tube fittings in the same grades, cover impulse lines, sampling lines, control-air and hydraulic lines. Tube, fittings and valves should come from the same fitting system, and the tube hardness must suit the fitting manufacturer's limit. Duplex, 6Mo and nickel alloy tubing and fittings are sourced on enquiry for offshore and severe service.
Needle valves, instrument ball valves and manifolds
Needle, instrument ball, check and gauge valves isolate, regulate and vent instrument lines. Two, three and five-valve manifolds follow IEC 61518 for differential pressure transmitter hook-ups, and double block and bleed valves give positive isolation at the instrument root.
Copper tubes and fittings
Copper tubes to ASTM B88, B306 and B280 and matching fittings to ASME B16.22 and B16.18 serve air, water, refrigeration and utility lines from 1/8 in to 8-1/8 in. Copper is not suitable for ammonia or sulphide-bearing media.
Pressure gauges, thermowells and transmitters
Bourdon gauges to EN 837-1 with siphons, snubbers and diaphragm seals, thermowells designed with ASME PTC 19.3 TW in mind, RTDs and thermocouples, and pressure, temperature and level transmitters with ATEX, IECEx and SIL options can be sourced on enquiry against the instrument datasheet.
Instrumentation with pipes, fittings and flanges in one package
Instrument lines rarely travel alone. Gasify can consolidate tubing, valves and manifolds with steel pipes, butt weld and forged fittings, flanges and industrial valves in a single package, with phased deliveries to the UAE, GCC, Middle East, Africa and South Asia. Explore how we work on our project supply page or read about oil and gas supply.
12 / FAQ
Instrumentation supply questions.
Are you an instrumentation tubing and fittings supplier and stockist in the UAE?
Gasify combines UAE-based supplier and stockist support with sourcing from established manufacturers in Europe, India and Korea. Availability depends on product, size, material and quantity, so current stock is confirmed for each RFQ.
Can you supply instrumentation products to ADNOC and Saudi Aramco project specifications?
Gasify supports procurement against project material requisitions and client specifications, including ADNOC and Saudi Aramco requirements where the project calls for them. Approved manufacturer and vendor list requirements are reviewed for each project. Gasify does not represent an approval status unless it is formally documented.
Which instrumentation products do you supply?
The range covers stainless steel instrument tubing and tube fittings, instrumentation valves, valve manifolds and DBB valves, copper tubes and fittings, pressure gauges and accessories, thermowells and temperature instruments, and transmitters and field instruments sourced on enquiry.
What size and grade range do you supply for stainless tubes and fittings?
Seamless or welded TP316/316L tubes and tube fittings are supplied from 1/8 in to 2 in. Other grades such as 304, duplex, 6Mo and nickel alloys are sourced on enquiry.
Are tube fittings from different manufacturers interchangeable?
No. Compression tube fittings from different manufacturers use different ferrule and nut designs, so tube, fittings and valves should come from the same fitting system. Mixing makes can cause leaks and void the manufacturer's pressure rating.
What is the difference between TP316 and TP316L tubing?
TP316L has a lower carbon content than TP316, which improves resistance to sensitisation after welding. Dual-certified 316/316L tubing meets both specifications. Both have the same general corrosion resistance, and the allowable stress is lower for the L grade.
What tube hardness do fittings require?
Compression fitting manufacturers specify a maximum tube hardness so the ferrules can bite into the tube. Soft annealed tubing is the usual choice. State the fitting system and its hardness limit in the RFQ.
Which valve do I need for a DP transmitter?
A three-valve manifold has two block valves and an equalising valve, and a five-valve manifold adds two vent valves for calibration and venting. Remote-mount and direct-mount types follow IEC 61518 for transmitter mounting dimensions.
What copper tube standards do you supply?
Copper tubes and fittings are supplied to ASTM B88 (water tube), ASTM B306 (drainage tube) and ASTM B280 (air conditioning and refrigeration tube), from 1/8 in to 8-1/8 in. Copper is not suitable for ammonia or sulphide-bearing media.
Do you supply NACE MR0175 / ISO 15156 sour service instrumentation?
Sour service tubing, fittings and valves can be sourced where the project specification requires them, including hardness limits and the documentation stated on the datasheet. Requirements are confirmed before quotation.
What tests and certificates come with the products?
Tube, fittings and valve bodies are supplied with EN 10204 3.1 material test certificates and heat-code traceability. Calibration certificates for gauges and transmitters, Ex and SIL certificates, EN 10204 3.2 certification and third-party inspection can be coordinated where specified.
How do I request a quotation for instrumentation products?
Send your MTO, BOQ or datasheet with product type, size, material grade, standard, end connection, pressure rating, quantity, required certificates and delivery location. The procurement team reviews the requirement and responds with a quotation.
Do you deliver outside the UAE?
Yes. Gasify coordinates delivery from the UAE to the GCC, wider Middle East, Africa and South Asia, subject to product, quantity, destination and logistics requirements. Include the delivery location in your RFQ.
13 / START A REQUIREMENT
Send your instrumentation list. We'll build the supply route.
Share your MTO, BOQ, hook-up drawings or datasheets with the delivery location. Our procurement team will review tube, fittings, valves and documentation, then coordinate sourcing, quotation and delivery.
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SERVINGUAE · GCC · Middle East · Africa · South Asia
