Oliver Manifold Valves Distributor in India

Priminox Overseas is the sole distributor and stockist of Oliver Manifold Valves in Mumbai, India. These Oliver instrumentation manifold valves combine isolate, equalise, and vent functions in a single forged body, so engineers can mount pressure transmitters, DP transmitters, and gauges directly onto the process line without separate piping. We stock the standard Oliver range, including two-valve, three-valve, and five-valve manifolds, miniature manifolds, ball valve manifolds, and high-pressure distribution manifolds. Standard manifolds carry a 6,000 PSI (414 bar) working pressure, with /HP variants uprated to 10,000 PSI (690 bar), heavy-duty PTFE-packed versions reaching 15,000 PSI (1,034 bar), and /22.5HP needle manifolds rated to 22,500 PSI (1,551 bar).

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Complete Range of Oliver Manifold Valves

Explore our complete selection of Oliver manifold valves built for instrument hook-up, calibration, and isolation across instrumentation and process lines.

Oliver 2 Valve Manifolds Distributor in India

Oliver 2 Valve Manifolds (G12, Y24, Y25 Types)

Design Type: Single-piece forged barstock body.
Body Materials: 316 SS, 316L SS, carbon steel, Duplex (UNS S31803), Monel 400, Hastelloy C276, Incoloy 825, Inconel 625, Titanium.
Bore Size: 0.21" (5.4 mm).
Flow Coefficient (Cv): 0.46.
Pressure Rating: 6,000 PSI (414 bar) standard; 10,000 PSI (690 bar) on /HP; 15,000 PSI (1,034 bar) PTFE-packed heavy duty.
Temperature Range: -29°C to +240°C with PTFE packing; up to +540°C with graphite packing.
Packing: PTFE standard, graphite for firesafe service.
End Connections: NPT, BSP Parallel, BSP Taper, socket weld, butt weld, flanged.
Mounting Styles: Remote pipe-to-pipe (G12FF/MF/FM), direct mounting pipe-to-flange (Y24), direct mounting flange-to-flange (Y25).
Applications: Static pressure transmitter mounting, gauge isolation, single-line instrument take-off.

Oliver 3 Valve Manifolds Distributor in India

Oliver 3 Valve Manifolds (Y33, YV33, Y34, YV34, T34, H33, Y35 Types)

Design Type: Single-piece forged barstock body.
Body Materials: 316 SS, 316L, Duplex, carbon steel, Monel, Hastelloy, Incoloy, Inconel, Titanium.
Bore Size: 0.21" (5.4 mm).
Pressure Rating: 6,000 PSI (414 bar) standard; 10,000 PSI (690 bar) with /HP; 15,000 PSI (1,034 bar) PTFE-packed heavy duty.
Temperature Range: -29°C to +240°C (PTFE); up to +540°C (graphite).
Valve Arrangement: Two isolate valves (blue colour-coded tags) plus one equalise valve (green tag); Pressure plugs supplied as standard, vent plugs available by adding the /VP suffix.
End Connections: NPT, BSP, socket weld, butt weld, flanged with kidney flange options.
Mounting Styles: Remote pipe-to-pipe (Y33, YV33 with vent ports), direct pipe-to-flange (Y34), direct pipe-to-flange with vent ports (YV34).
Applications: DP transmitter mounting, calibration, instrument equalisation.

Oliver 5 Valve Manifolds Distributor in India

Oliver 5 Valve Manifolds (Y52, Y53, Y54 Types)

Design Type: Single-piece forged barstock body for DP transmitter calibration.
Body Materials: 316 SS, Duplex, carbon steel, Monel, Hastelloy, Inconel, Incoloy, Titanium.
Pressure Rating: 6,000 PSI (414 bar) standard; 10,000 PSI (690 bar) with /HP option.
Temperature Range: -29°C to +240°C (PTFE); up to +540°C (graphite).
Valve Arrangement: Separate isolate and vent for HP leg, separate isolate and vent for LP leg, plus one equalise valve.
Mounting Styles: Direct flange-to-flange (Y52), direct threaded-to-flange (Y53), remote threaded-to-threaded (Y54).
Bolting: Stainless steel bolts rated to 4,800 PSI; high-tensile SS bolts available rated to 6,000 PSI; 7/16" UNF mild steel bolts standard on direct-mount versions.
Applications: DP transmitter mounting with full HP/LP isolation, in-situ calibration, level measurement.

Oliver Miniature Needle Valves and Manifolds Distributor in India

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

Design Type: Compact forged body for tight installation envelopes.
Body Material: 316 stainless steel standard; other materials on request.
Connection Sizes: 1/4" NPT or 1/2" NPT, Female x Female or Male x Female orientation.
Pressure Rating: 6,000 PSI standard; 10,000 PSI (690 bar) maximum with /HP option.
Temperature Range: -29°C to +180°C.
Features: Non-rotating anti-galling tip, anti-blowout spindle with back seat, M5 panel mounting holes (x2) tapped in the valve body as standard, low operating torque.
Compliance: NACE MR-01-75 / ISO 15156 compliant.
Configurations: Miniature needle valve (MFF), miniature two-valve manifold (MG12AF), miniature double block and bleed manifold (MDBBINPM).

Oliver Instrument Double Block and Bleed Manifolds Distributor in India

Oliver Instrument Double Block and Bleed Manifolds (L, T, ID, IN Types)

Design Type: Barstock body combining two block valves and one bleed in a single forging.
Bores Available: 5.4 mm on IN type; 10 mm, 14 mm and 20 mm on L and ID types; 10 mm and 14 mm on T type.
Configurations: L type (three balls for sampling, chemical injection, and instrument DBB), T type (central T-ported ball for compact DBB), ID type (ball isolate, ball secondary isolate, needle vent), IN type (three heavy-duty needle valves with metal seats).
Vent: Bottom vent standard; side vent optional.
Options: Surface mounting available across the range; Cam Interlock available on L and T types only, to prevent the vent valve being opened while either isolate is open.

Oliver Ball Valve Manifolds Distributor in India

Oliver Ball Valve Manifolds (B6G12FFS and Variants)

Design Type: Barstock body with three balls arranged for sampling, chemical injection, and double block and bleed of instrument.
Pressure Rating: Up to 6,000 PSI (414 bar).
Features: Surface mounting option, Cam Interlock to allow only the correct sequence of operation.
Tag Colours: Blue for isolate, red for vent.

Oliver Distribution Manifolds DM and CMDM Distributor in India

Oliver Distribution Manifolds (DM and CMDM Types)

DM Type: Distribution manifold built around ball valves.
CMDM Type: Compact mount distribution manifold built around needle valves.
Maximum Working Pressure: 6,000 PSI.
Maximum Temperature: 200°C with ball valves; 240°C with needle valves.
Materials: 316 SS, 316L, carbon steel (En1a or En3b for NACE), Monel 400, Hastelloy C276. Other materials on request.

Oliver Air Headers and Low Pressure Ball Valve Manifolds (LPB Series)

Design Type: Manifold from extruded section for low-pressure air distribution.
Air Header Body Material: 316 stainless steel or carbon steel.
LPB Ball Valve Body Material: CF8M cast stainless steel with 316 stainless steel trim and 304 stainless steel handle.
Maximum Working Pressure: 150 PSI on air headers; 1,000 PSI to 3,000 PSI on LPB ball valve manifolds.
Maximum Temperature: 200°C.
Outlet Sizes: 1/4", 3/8", 1/2", 3/4", 1".

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Send your Oliver Manifold Valves part number or your application's pressure, temperature, and media, and we'll come back with the model match, stock position, and price.

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Industries We Supply Oliver Manifold Valves To

Oliver Manifold Valves carry out instrument isolation, equalisation, venting, sampling, and injection across the following industries:

Oil and Gas (upstream, midstream, downstream)

Petrochemicals

Refining

Chemical Processing

Power Generation

Hydrogen

Carbon Capture

Nuclear

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Oliver Valves Catalogue

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

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Oliver Manifold Valves: Sourcing and Technical Questions, Answered

The pressure rating is up to 22,500 PSI (1,551 bar) on /22.5HP needle manifolds, 15,000 PSI (1,034 bar) on heavy-duty PTFE-packed manifolds, 10,000 PSI (690 bar) on /HP variants, and 6,000 PSI (414 bar) on standard models. The temperature range runs from -29°C to +240°C with PTFE packing, and up to +540°C with graphite firesafe packing.

The difference is the number of functions in one body: two-valve manifolds give one isolate plus one vent for static pressure gauges and transmitters, three-valve manifolds give two isolates plus one equalise for DP transmitters, and five-valve manifolds add separate vent valves on the HP and LP legs for in-situ calibration without breaking impulse lines.

We stock 316 stainless steel as the standard, with carbon steel and Duplex (UNS S31803) routinely available. Exotic materials such as Monel 400, Hastelloy C276, Incoloy 825, Inconel 625, and Titanium are sourced against order.

The standard bore size is 0.21" (5.4 mm) with a Cv of 0.46, which suits typical instrument isolation duty without throttling the impulse line.

Manifold bolts handle pressure as follows: stainless steel bolts are rated to 4,800 PSI, special high-tensile stainless steel bolts to 6,000 PSI, and standard 7/16" UNF mild steel bolts ship on all direct-mount manifolds unless specified otherwise.

Yes, manifolds are available degreased to Air Products AO3 standard for oxygen service (suffix /OXY) and with cryogenic head units down to -200°C (suffix /LT200) and -100°C (suffix /LT100).

Each manifold ships with BS EN 10204 3.1 material certification and pressure test reports, and a unique code stamped on the body links it to its chemical analysis certificate. ISO 15848 fugitive emissions test certificates and 3.2 witnessed certification are available on request.

Yes, spare head units and PTFE/graphite packing kits are available. Tips are interchangeable between hard, soft, and metering options without special tools or spindle changes, so the same body can be reconfigured for different service conditions.

Explore Other Oliver Valves Products from Priminox Overseas

Beyond manifold valves, Priminox stocks the wider Oliver Valves portfolio — needle valves, ball valves, monoflanges, double block and bleeds, and more.

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