Oliver Instrumentation Valves Authorised Distributor in India

Priminox Overseas is the sole distributor of Oliver Instrumentation Valves in India. These instrument valves isolate, equalise, vent and provide fine flow adjustment on gauges, transmitters, analysers and small-bore tubing systems across oil, gas and petrochemical plants. Our ISO 9001 and ISO 14001 certified stockholding covers hand-operated needle valves, miniature needle valves, ball valves, two/three/five valve manifolds, check valves, gauge accessories, distribution manifolds, and cryogenic instrument valves. Standard pressure rating is 6,000 PSI (414 bar), uprated to 10,000 PSI (690 bar) with the /HP option. Heavy-duty needle valves extend to 15,000 PSI (1,034 bar) on cone and thread ports, and a dedicated ultra-high-pressure range is rated to 22,500 PSI (1,551 bar); bodies are available in 316 stainless steel, Monel 400, Inconel 625, Hastelloy C276, Incoloy 825, Duplex UNS S31803, and carbon steel.

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Complete Range of Oliver Instrumentation Valves

Explore our full range of Oliver instrument valves engineered for bubble-tight shut-off, low-torque operation, and long service life on plant and offshore instrumentation hook-ups.

Oliver F, M, BI and A Type Hand Valves

Sizes: 1/4", 3/8", 1/2", 3/4" and 1" NPT (F25, F38, F50, F75, F10).
Body Materials: 316 stainless steel standard, 316L, carbon steel (En1a/En3b NACE), Monel 400, Hastelloy C276, Incoloy 825, Inconel 625, Duplex UNS S31803.
Pressure Rating: 6,000 PSI standard, 10,000 PSI with /HP suffix.
Temperature Range: Up to 240°C with PTFE packing, up to 540°C with graphite packing.
Bore: 0.21" (5.4 mm).
Flow Coefficient (Cv): 0.46.
Sealing: Non-rotating self-centreing anti-galling spindle tip, metal-to-metal seat, dynamic piston ring gland adjuster.
End Connections: Female x Female (F type), Male x Female (M type), twin ferrule compression (BI type), angle pattern (A type).

Oliver HD Type Heavy Duty Needle Valves

Pressure Rating: 6,000 PSI (HD), 10,000 PSI (HD/HP), 15,000 PSI (HD/15HP with cone and threaded ports).
NPT Limits: 1/4", 3/8" and 1/2" NPT rated to 10,000 PSI; 3/4" and 1" NPT rated to 6,000 PSI.
Body: Drop-forged, available Male or Female configuration.

Oliver 22,500 PSI Ultra-High Pressure Needle Valves

Design Pressure: 22,500 PSI (1,551 bar) with /22.5HP suffix.
Temperature Rating: -50°C (-60°F) to +240°C (+464°F).
Bore: 8 mm (0.312").
Stem Turns: 4 to 5 turns from closed to open.
End Connections: 9/16" MP cone and thread.
Body Material: 316 stainless steel with Inconel 718 spindle tip and nickel bronze pusher.
Sealing: Glass/Moly filled PTFE gland seal.

Oliver Miniature Needle Valves (MFF, MG12AF, MDBBINPM Types)

Sizes: 1/4" NPT and 1/2" NPT, Female x Female (Male x Female available).
Pressure Rating: 6,000 PSI standard, 10,000 PSI with /HP option.
Temperature Range: -29°C (-20°F) to 180°C (350°F).
Material: 316 stainless steel construction.
Features: Non-rotating anti-galling tip, anti-blow-out spindle with back seat, M5 panel mounting holes as standard.
Compliance: NACE MR-01-75 / ISO 15156.

Oliver Two, Three and Five Valve Manifolds

Configurations: 2-valve isolate-and-vent, 3-valve (block-equalise-block), 5-valve (block-equalise-block-vent-vent), direct mount and remote mount.
Pressure Rating: 6,000 PSI standard, 10,000 PSI with /HP suffix.
Direct Mount Bolt Ratings: 7/16" UNF carbon steel bolts standard; stainless steel bolts rated to 4,800 PSI (/SSB), upgraded stainless bolts rated to 6,000 PSI (/SSB-6K).
Identification: Colour-coded SS tags - blue isolate, green equalise, red vent.
Sour Service: NACE MR-01-75 latest revision available with /NA suffix.
Firesafe: Class 150 lb to 2500 lb to BS 6755 Part 2, Lloyds Register cert 92/00140, max 6,000 PSI at 540°C with /FS suffix.

Oliver Ball Valves to 10,000 PSI (B6, B10 Series)

Bore Sizes: 10 mm (0.375"), 14 mm (0.551"), 20 mm (0.787").
Flow Coefficient (Cv): 6.3 (10 mm), 11.7 (14 mm), 27.9 (20 mm).
Pressure Ranges: 4,000 PSI, 6,000 PSI and 10,000 PSI.
Maximum Temperature: 10 mm bore uses a twin seat rated to 120°C with Teflon/PVDF (standard) or 200°C with Teflon/KEL-F (/KL suffix). 14 mm and 20 mm bore valves use a solid PEEK seat rated to 200°C.
Body: Three-piece drop-forged, 316 stainless steel.
Operation: 90° quarter-turn with 316 SS one-piece stamped handle, anti-blowout spindle, anti-vibration dead stop pin.
Vacuum Service: Tested to 0.01 mbar with no detectable leakage.
Sizes: 1/4", 3/8", 1/2", 3/4" and 1" NPT.

Oliver Ball Valves to 1,000 PSI (Low Pressure Range)

Bore Sizes: 9 mm to 19 mm.
Sizes: 1/4" to 1" NPT.
Pressure Range: 1,000 PSI to 3,000 PSI.
Body: CF8M cast stainless steel with 316 SS trim and pressed 304 SS handle.
Standard Features: Handle locking, NACE compliance; firesafe standard on the 3,000 PSI version.

Oliver 3-Way Diverter and Selector Ball Valves

Bore: 10 mm.
Pressure Ranges: 3,000 PSI, 6,000 PSI, 10,000 PSI.
Temperature: -29°C to 121°C.
Configurations: Bottom-entry single 'L' port diverter (B*BL50S), side-entry diverter (B*SL50S), panel-mount selector valve (B*PMBSELF##S) with 180° operation.
Sizes: 1/4", 3/8" and 1/2" NPT (selector valve).

Oliver Air Headers

Maximum Working Pressure: 150 PSI.
Maximum Temperature: 200°C.
Material: 316 stainless steel or carbon steel, extruded section.
Ball Valve Outlets: 1/4" NPT Female or 1/2" NPT Female, all 316 SS.

Oliver Distribution Manifolds (DM and CMDM Types)

Maximum Working Pressure: 6,000 PSI.
Maximum Temperature: 200°C with ball valves, 240°C with needle valves.
Configurations: Built to customer drawings with required outlet count, valve mix and flange specification.

Oliver Check Valves (CV Type)

Sizes: 1/4", 3/8", 1/2", 3/4" and 1" NPT Female x Female.
Pressure Rating: 1/4", 3/8" and 1/2" rated to 6,000 PSI standard or 10,000 PSI with /HP; 3/4" and 1" rated to 6,000 PSI.
Maximum Temperature: 120°C.
Body and Springs: 316 stainless steel.
Seat Options: Viton standard, Viton 90 for NACE, Kalrez or PEEK on request (PEEK mandatory for hydraulic service).
Minimum Cracking Pressure: 7 PSI.
Cv: 0.7 (1/4"), 0.7 (3/8"), 2.0 (1/2"), 4.6 (3/4"), 7.2 (1").

Oliver Gauge Snubber (SN50S)

Maximum Pressure: 6,000 PSI.
Maximum Temperature: 120°C.
Body and Seals: 316 stainless steel body, Viton seals.
Connection: 1/2" NPT Male x Female.
Feature: Variable orifice adjustable on site to dampen line surges, anti-blowout spindle.

Oliver Swivel Gauge Adaptor (GA50S)

Maximum Pressure: 6,000 PSI.
Maximum Temperature: 540°C.
Body and Seals: 316 stainless steel with metal seal.
Connection: 1/2" NPT Male x Female.
Feature: Allows 360° positioning of gauges on site.

Oliver Gauge Syphon (SY50S)

Maximum Pressure: 6,000 PSI.
Body: All 316 stainless steel.
Connection: 1/2" NPT Male x Female.
Feature: Internal-chamber design protects gauges from steam, more compact than pigtail syphons.

Oliver Cryogenic Single Isolate Ball Valve

Connection: 1/2" NPT Female x Female.
Maximum Working Pressure: 3,600 PSI (248.2 bar).
Temperature Range: -196°C (-320.8°F) to ambient.
Fugitive Emissions: Qualified to ISO 15848 Class B.

Oliver Cryogenic Needle and DBB Valves (/LT200 suffix)

Temperature Range: Down to -200°C with extended cryogenic head unit.
Range: Available across needle, ball and double block & bleed bodies.

Order the Best-Quality Oliver Instrumentation Valves from
— Priminox Overseas.

Send us your Oliver part number or your line specs (pressure, media, packing, end connection), and we will confirm the model, stock position, and price.

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Industries We Supply Oliver Instrumentation Valves To

Oliver instrument valves are used in plant and offshore hook-ups where shut-off integrity at high pressure matters more than valve count.

Oil and Gas

Petrochemicals

Refining

Chemical Processing

Power Generation

Marine and Offshore

LNG and Cryogenic Service

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Access Oliver product information and connect with our team for technical assistance and stock availability.

Oliver Catalogue

Download the complete Oliver product Catalogue with full specifications, dimensions, ordering codes, and material options for all product categories.

Download Oliver Catalogue (PDF)

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Oliver Instrumentation Valves - Sourcing and Technical Questions, Answered

The maximum pressure rating reaches 22,500 PSI (1,551 bar) on the dedicated heavy-duty needle valve range. Standard hand valves are rated to 6,000 PSI, with 10,000 PSI (/HP) and 15,000 PSI (HD/15HP) variants for higher-duty service.

PTFE-packed needle valves operate up to 240°C, while graphite-packed firesafe variants operate up to 540°C. Cryogenic /LT200 head units extend the lower limit down to -200°C.

Three-piece 10 mm bodies use a twin seat: Teflon/PVDF rated to 120°C standard, or Teflon/KEL-F rated to 200°C with the /KL suffix. Larger 14 mm and 20 mm bore bodies use a solid PEEK seat rated to 200°C.

The Cv is 6.3 for 10 mm bore, 11.7 for 14 mm bore, and 27.9 for 20 mm bore.

Yes. Standard PTFE-packed needle valves and ball valves are vacuum-tested to 0.01 mbar with no detectable leakage. Oxygen service is offered on needle and ball valves degreased to Air Products AO3 standard with the /OXY suffix; carbon-steel bodies, soft seats and handwheel-locked needle valves are excluded from oxygen service per Oliver's specification.

Bodies are available in 316L, Monel 400, Hastelloy C276, Incoloy 825, Inconel 625, Duplex UNS S31803, Titanium, and carbon steel (En1a plated or En3b for NACE). Material selection is by suffix on the part code.

Every valve carries a unique body-stamped identification code linked to BS EN 10204 material and chemical analysis certificates. Additional 3.1 / 3.2 certification and pressure test reports are supplied on request under our ISO 9001 quality system.

Explore Other Oliver Products from Priminox Overseas

Beyond instrumentation valves, Priminox stocks the complete Oliver product family — fittings, actuators, quick couplings and sampling solutions.

Oliver Valves

Oliver Needle Valves

Oliver Ball Valve

Oliver DBB Valves

Oliver Manifold Valves

Oliver Monoflange Valves

Oliver Check Valves

Oliver Injection & Sampling Valves

Oliver Gauge Valves

Oliver Hydcovalves

Oliver Twinsafe

Oliver Twinsafe DBB Valves

Oliver Valvetek

Oliver Valvetek Subsea Valves