GYROLOK Valves Authorised Distributor in India

Priminox Overseas is the official distributor of GYROLOK Valves in India. GYROLOK Valves pair HOKE precision valve bodies with integral GYROLOK tube fitting end connections, giving leak-tight tube-to-valve joints on instrumentation, sampling, and process control lines. We stock needle valves, hand valves, gauge valves, manifolds, and 3-piece ball valves with integral GYROLOK ends from our Mumbai warehouse. The range covers 316 stainless steel, brass, carbon steel, and MONEL bodies with pressure ratings reaching 6,000 psig (414 bar) at 70°F (21°C).

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Explore the Full Range of GYROLOK Valves

The range groups into needle valves (1700, 2100, 2200, 2219, and 3700/3800/3900 Series), hand valves, gauge valves and manifolds (2-, 3-, and 5-valve configurations), and 3-piece ball valves (7520G Series). Every model below accepts integral GYROLOK tube fitting end connections.

HOKE 1700 Series Forged Body Needle Valves with GYROLOK

Design Type: Forged body, integral bonnet.
Body Materials: 316 stainless steel and MONEL.
Orifice Size: 0.187" (4.8 mm).
Flow Coefficient (Cv): 0.31 to 0.45.
Pressure Rating: 6,000 psig (414 bar) at 70°F (21°C).
Temperature Range: -65 to 450°F (-54 to 232°C) with metal stem tip; -20 to 250°F (-29 to 121°C) with PCTFE stem tip.
Packing: Dyna-Pak.
GYROLOK End Connections: 1/4", 3/8", and 8 mm.
Applications: Panel board instrumentation, pressure gauge valves, sampling systems, research laboratories, oxygen service, corrosive and high pressure service, cylinder valves.

HOKE 2100 Series Bar Stock Needle Valves with GYROLOK

Design Type: Bar stock, screwed bonnet.
Body Materials: Brass, 316 stainless steel, and carbon steel.
Orifice Size: 0.188" to 0.313" (4.8 mm to 8.0 mm).
Flow Coefficient (Cv): 0.40 to 1.20.
Pressure Rating: Brass: 3,000 psig (207 bar); 316 stainless steel: 6,000 psig (414 bar); carbon steel: 5,000 psig (345 bar), at 70°F (21°C).
Temperature Range: -65 to 450°F (-54 to 232°C) with Dyna-Pak and metal stem tip; -20 to 250°F (-29 to 121°C) with Dyna-Pak and PCTFE stem tip; -60 to 600°F (-51 to 316°C) with Graph-Lock and metal stem tip.
GYROLOK End Connections: 1/4", 3/8", and 1/2".
Applications: Hydraulic systems, high temperature service, gas sampling, test stands.

HOKE 2200 Series Bar Stock Needle Valves with GYROLOK

Design Type: Bar stock, screwed bonnet.
Body Materials: 316 stainless steel.
Orifice Size: 0.086" to 0.313" (2.2 mm to 8.0 mm).
Flow Coefficient (Cv): 0.12 to 1.4.
Pressure Rating: 5,000 psig (345 bar) at 70°F (21°C).
Temperature Range: -65 to 450°F (-54 to 232°C).
Packing: Dyna-Pak.
GYROLOK End Connections: 1/4", 3/8", 1/2", 10 mm, and 12 mm.
Applications: Corrosive media handling, sampling systems, metering service.

HOKE 2219 Series Forged Body Union Bonnet Needle Valves with GYROLOK

Design Type: Forged body, union bonnet.
Body Materials: 316 stainless steel (standard), with carbon steel, HASTELLOY C-276, and MONEL available as build-to-order options.
Orifice Size: 0.170" (4.3 mm), 0.250" (6.4 mm), 0.312" (7.9 mm), and 0.437" (11.1 mm).
Flow Coefficient (Cv): 0.47, 1.09, and 1.20 (Cv for the 0.437" orifice not published).
Pressure Rating: 6,000 psig (414 bar) at 70°F (21°C).
Temperature Range: -100 to +1,000°F (-75 to +538°C), with maximum pressure derated to 1,750 psig (120 bar) at +1,000°F (+538°C). Proof pressure safety factor 2:1, burst pressure 4:1.
Compliance: Meets ANSI 900# specifications. Bubble-tight leak testing at both seat and packing.
GYROLOK End Connections: 1/4", 1/2", 3/4", 1", 12 mm, 22 mm, and 25 mm.
Applications: Severe service applications, steam service in power plants, hot condensates.
Packing: Grafoil (below the stem threads, isolating threads from media). Non-rotating 316 stainless steel stem tip.

HOKE 3700, 3800 and 3900 Series Needle Valves with GYROLOK

Design Type: Forged body needle valves.
Body Materials: Brass, 316 stainless steel, carbon steel, and MONEL.
Orifice Size: 0.06" to 0.312" (1.5 mm to 7.9 mm).
Flow Coefficient (Cv): 0.07 to 1.1.
Pressure Rating: 316 stainless steel, carbon steel, and MONEL: 5,000 psig (345 bar); brass: 3,000 psig (207 bar), at 70°F (21°C).
Temperature Range: -65 to 450°F (-54 to 232°C) with metal stem tip; -20 to 250°F (-29 to 121°C) with PCTFE stem tip.
Packing: Dyna-Pak.
Flow Patterns: Globe and angle.
GYROLOK End Connections: 1/8", 1/4", 3/8", 1/2", and 3, 6, 8, 10, 12 mm.
Other Features: Colour-coded handles for fluid identification, factory-installed D-style or field-installed P-style panel mounting.
Applications: Instrument air lines, sampling, gas chromatography, cylinder valves, test stands.

HOKE Hand Valves, Gauge Valves and Manifolds with Integral GYROLOK

Design Type: 2-valve, 3-valve, and 5-valve manifolds in Direct and Remote Mount styles, plus hand valves and gauge valves.
Body Materials: Full 316/316L Dual Certified stainless steel standard. MONEL, Duplex, Super Duplex, Titanium, HASTELLOY, and Alloys 625, 825, and 6Mo on request.
Bore: 4.76 mm through-bore (Cv = 0.4 fully open).
Pressure Rating (PTFE packing): 6,000 psi (413 bar) at 212°F (100°C); 4,000 psi (275 bar) at 392°F (200°C).
Pressure Rating (Grafoil packing): 6,000 psi (413 bar) at 212°F (100°C); 3,300 psi (230 bar) at 842°F (450°C).
Packing: PTFE standard, Grafoil optional.
Compliance: NACE MR-01-75. Hydrostatically tested to 1.5 times maximum working pressure. Special materials sourced from NORSOK M-650 approved mills.
GYROLOK End Connections: Integral GYROLOK tube fitting option available in 3/8 inch, 1/2 inch, and 10 mm sizes across the hand valve, gauge valve, and manifold range.
Other Features: Removable T-bar handle, bonnet locking pin, dead stem through packing, laser engraved identification, individual boxing.
Applications: Differential pressure transmitters, static pressure and liquid level instrument hook-ups.

HOKE 7520G Series 3-Piece Ball Valves with GYROLOK Ends

Design Type: 3-piece, full port, enclosed bolt construction.
Body Materials: ASTM A351-CF8M/316 stainless steel.
Seat Material: TFM4215.
Pressure Rating: 3,000 psi (207 bar) WOG for 1/4" to 1/2"; 2,000 psi (138 bar) WOG for 3/4" to 1".
Mounting: ISO 5211 direct actuator mounting pad (F03-F04 for 1/4" to 3/4"; F04-F05 for 1").
Compliance: Basic design complies with ANSI B16.34. Tested per API 598.
GYROLOK End Connections: 1/4", 3/8", 1/2", 3/4", and 1".
Other Features: Live-loaded packing gland, bottom-loaded blow-out proof stem, pressure-equalising seats, optional oval handle (uninstalled).

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Our GYROLOK specialists respond within 4 working hours. Request stock availability, equivalent cross-references, or technical specifications.

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Industries we supply GYROLOK Valves

GYROLOK Valves serve flow isolation, instrument hook-up, sampling, and severe service duty across these industries:

Oil and Gas

Petrochemicals

Refining

Chemical Processing

Power Generation

Pulp and Paper

Hydrogen Industry

Marine Industry

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GYROLOK Catalogue

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

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Ex-Stock from Mumbai Warehouse

Distributor Verification: To request an official copy of our Distributor Authorisation Letter, please email us.

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GYROLOK Valves - Sourcing & Technical Questions

GYROLOK end connections use a controlled ferrule drive and sizing angle that prevents over-tightening and allows multiple remakes, plus a butt seal for added leak protection. HOKE also applies a high tolerance NPT thread specification giving 5 to 6 engaged threads when fully tightened, compared with 3 to 4 on the ANSI/ASME B1.20.1 standard.
GYROLOK Valves handle up to 6,000 psig (414 bar) at 70°F on the 1700 Series, 2100 Series in 316 stainless steel, and 2219 Series. The 2200 Series and 3700/3800/3900 Series in 316 stainless steel sit at 5,000 psig (345 bar), 7520G ball valves at 3,000 psi (207 bar) for 1/4" to 1/2", and brass models at 3,000 psig (207 bar).
The body materials available are 316 stainless steel, brass, carbon steel, and MONEL across the needle valve range. Hand valves, gauge valves and manifolds use full 316/316L dual certified stainless steel with MONEL, Duplex, Super Duplex, Titanium, HASTELLOY, and Alloys 625, 825, and 6Mo on request. The 7520G ball valves use ASTM A351-CF8M/316 stainless steel.
The 2219 Series handles steam and high temperature service, rated -100 to +1,000°F (-75 to +538°C) and meeting ANSI 900# specifications. The 2100 Series with Graph-Lock packing covers -60 to 600°F (-51 to 316°C), and manifolds with Grafoil packing are rated to 3,300 psi at 842°F (230 bar at 450°C).
Yes, the 7520G ball valve carries an ISO 5211 direct actuator mounting pad (F03-F04 for 1/4" to 3/4", F04-F05 for 1") that accepts standard pneumatic or electric actuators without an adapter bracket.
Yes, oxygen cleaning and helium leak testing are available. Specify the requirement on your purchase order.
Yes, spare parts and repair kits are available across the needle valve range. Send us the model and series and we will quote the matching kit number.

Explore Other GYROLOK Products from Priminox Overseas

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