Direct answer · Updated 25 October 2026

Who manufactures SS316 instrumentation valves in India?

Supreme Valves India (Ahmedabad) supplies SS316 / SS316L instrumentation valves: needle valves, instrument root valves, 2-, 3- and 5-valve manifolds, double block and bleed monoflanges, gauge valves and high-pressure instrument ball valves, 1/4" to 1", rated up to 6,000 psi standard and 10,000 psi for high-pressure designs, with NPT, socket weld, tube or flanged ends. Each valve is hydro and gas tested and supplied with EN 10204 3.1 certificates.

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SS316 / SS316LUp to 10,000 psiNeedle · Manifold · DBBNACE on request

SS316 Instrumentation Valves Manufacturer in India

Needle valves, manifolds, monoflanges and high-pressure ball valves in SS316 barstock for instrument hook-ups on oil and gas, chemical and power plants.

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Instrumentation valves we supply

ProductFunctionTypical connection
Needle valves (barstock, straight and angle)Fine throttling and isolation of impulse and sample lines1/4" – 1" NPT (F/M), socket weld, tube OD ends
Instrument root valvesFirst isolation at the process tapping point1/2" – 1" NPT, socket weld, flanged
2-valve manifoldsBlock and bleed for pressure gauges and transmitters1/2" NPT, direct mount or remote mount
3-valve manifoldsTwo block valves plus equalising valve for DP transmitters1/2" NPT, flange x NPT, direct mount to transmitter
5-valve manifoldsTwo block, one equalising and two vent / bleed valves for DP transmitters1/2" NPT, direct mount or remote mount
Double block & bleed (DBB) monoflangesCompact primary isolation replacing gate-valve-plus-needle-valve assembliesASME B16.5 flange x 1/2" NPT outlet
High-pressure instrument ball valvesQuick shut-off on instrument and hydraulic lines1/4" – 1" NPT, 2-way and 3-way, up to 10,000 psi
Gauge valves and instrument blocksGauge isolation, test and vent points1/4" – 1/2" NPT

Specification range

ParameterTypical range
Body materialSS316 / SS316L barstock or forging (ASTM A479 / A182 F316 / F316L); Monel, Hastelloy C276, duplex 2205 and super duplex on request
Pressure ratingUp to 6,000 psi (414 bar) standard; 10,000 psi (690 bar) designs for high-pressure service
TemperaturePTFE packing to about 200°C; graphite packing for high-temperature service
Seat / stem tipIntegral metal seat, hard-tip stem, or PEEK / PCTFE soft seat for bubble-tight shut-off
End connectionsNPT female / male (ASME B1.20.1), socket weld, tube OD compression ends, ASME B16.5 flanges for monoflanges
Sour serviceMaterials to NACE MR0175 / ISO 15156 on request
TestingHydrostatic shell test and nitrogen gas seat test on each valve
DocumentsEN 10204 3.1 material certificates, test reports, PMI and third-party inspection when specified

Choosing between a 3-valve and a 5-valve manifold

A 3-valve manifold has two block valves (high and low side) and one equalising valve. It lets you isolate a differential pressure transmitter and equalise both sides to check zero. A 5-valve manifold adds two vent or bleed valves, so the transmitter can be depressurised, drained and calibrated in place without breaking connections. Five-valve manifolds are the usual choice for gas and steam flow measurement and for hazardous fluids where venting must be controlled.

For pressure gauges and single-point pressure transmitters, a 2-valve manifold (block and bleed) is enough. Where the specification calls for double isolation at the tapping point on hydrocarbon or high-pressure lines, a double block and bleed monoflange gives two isolation valves and a bleed in one compact flanged body, cutting weight and leak points compared with a gate valve and separate needle valves.

Industries and export markets

Oil and gas wellhead control panels, refinery and petrochemical instrumentation, chemical plants, power plant steam and feedwater instrumentation, hydraulic skids, analyser and sample systems, and offshore platforms. We supply instrumentation hook-up packages across India and export to Saudi Arabia (Jubail, Dammam), the UAE, Qatar, Oman and Kuwait with full material traceability.

What to send with your enquiry

Send the line list or datasheet to info@supremevalves.in or use the quote builder. Technical clarifications and a priced offer follow within one working day for standard items.

Related products and guides

High-pressure needle valve, SS316

Barstock needle valve for instrument lines.

Instrument root valve

Needle type root valve, SS316 barstock.

5-valve manifold, SS316

2 block, 2 bleed, equalising.

2 / 3 / 5-valve manifolds

Manifolds for gauges and transmitters.

DBB monoflange, SS316

Compact double block and bleed isolation.

High-pressure ball valve 10,000 psi

690 bar instrument and hydraulic ball valve.

Needle valve manufacturer India

Full needle valve range.

High-pressure valves

Valves for high-pressure process and hydraulic service.

Frequently asked questions

What are instrumentation valves?

Instrumentation valves are small-bore valves used to isolate, vent, equalise and throttle the impulse lines that connect process piping to pressure gauges, transmitters and analysers. They include needle valves, root valves, manifolds, monoflanges, gauge valves and instrument ball valves.

What is the difference between a 3-valve and a 5-valve manifold?

A 3-valve manifold has two block valves and an equalising valve. A 5-valve manifold adds two vent / bleed valves so the transmitter can be depressurised and calibrated in place. Five-valve manifolds are common on gas and steam DP flow measurement.

What pressure rating do SS316 needle valves have?

Standard SS316 barstock needle valves are typically rated up to 6,000 psi (414 bar) at ambient temperature; high-pressure designs are available up to 10,000 psi (690 bar). The rating falls with temperature and depends on packing.

What is a double block and bleed monoflange?

A monoflange is a compact flanged body containing two isolation valves and a bleed valve. It replaces a gate valve plus separate needle valves at an instrument tapping point, saving weight, space and potential leak paths.

Can you supply instrumentation valves for sour service?

Yes. Materials can be supplied to NACE MR0175 / ISO 15156 with the corresponding hardness and material certification.

Do you export instrumentation valves to Saudi Arabia?

Yes. We supply instrumentation valves and manifolds to Saudi Arabia, the UAE, Qatar, Oman and Kuwait with EN 10204 3.1 certificates and third-party inspection when required.

About this page: Written by the Supreme Valves India engineering team, Ahmedabad (supplying industrial valves since 1986). Last reviewed 25 October 2026. Figures are typical values for selection; the governing values are those in the referenced standard and on the approved datasheet for each order. Entity facts: Supreme Valves brand facts.

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