Hy-Lok needle valves offer secure, leak-free connections and provide the lowest overall cost of any instrument needle valve used in the market today.
Needle valves within a block and bleed function help achieve positive isolation within maintenance operations of a live process plant. These work well in non-critical processes like with non-hazardous fluids or a low pressure system.
The small port and needle-shaped, threaded plunger allows for precise flow regulation in low flow applications. Not only for maintenance, needle valves also work well in flow-metering operations, and are especially good at maintaining a calibrated and constant low flow rate.
Rugged and compactly designed, Hy-Lok offers a wide range of sizes (1/8″ to 1″), and stem tips (v-stem, regulating, and soft seat) that work well for a variety of applications, including hydraulic and pneumatic systems. Of 316 stainless steel as standard, and some as alloy 400, Hy-Lok needle valves are meticulously designed for the flow, temperature and system required.
Rugged and compactly designed, Hy-Lok offers a wide range of sizes (1/8″ to 1″), and stem tips (v-stem, regulating, and soft seat) that work well for a variety of applications, including hydraulic and pneumatic systems.
Of 316 stainless steel as standard, and some as alloy 400, Hy-Lok needle valves are meticulously designed for the flow, temperature and system required.
End connection options include male / female NPT, Hy-Lok tube fittings, and ISO threads from 1/8″ to 1″. Available in stainless steel, carbon steel, brass, and alloy 400. With pressure rating to 10,000 psi and temperatures up to 1,200°F, Hy-Lok has a needle valve solution to meet your needs.
SV Series Integral Bonnet Bar Stock Needle Valves |
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Applications
Test Valves, Pilot Plants
Research Laboratories
Features
In-Line or Angle pattern
Stainless Steel, Brass, Alloy 400(Monel)
PTFE packing provides leak tight seal
and long life cycle
Metal-to-Metal Seat or PCTFE Soft Seat(Bubble Tight)
Specifications
– Maximum Operating Pressure :
6000 psig(420 barg) @ 100℉(38℃)
– Operating Temperature Range :
-65℉(-54℃) to 450℉(233℃)
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SV1F-4N-S316 | 0.37 | 1/4″ Female NPT | 1/4″ Female NPT | QUOTE | ![]() |
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SV1F-4R-S316 | 0.37 | 1/4″ Female ISO | 1/4″ Female ISO | QUOTE | ![]() |
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SV1M-4N-S316 | 0.37 | 1/4″ Male NPT | 1/4″ Male NPT | QUOTE | ![]() |
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SV1MF-4N-S316 | 0.37 | 1/4″ Male NPT | 1/4″ Female NPT | QUOTE | ![]() |
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SV1MH-4N4T-S316 | 0.37 | 1/4″ Male NPT | 1/4″ Hy-Lok | QUOTE | ![]() |
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SV1H-4T-S316 | 0.37 | 1/4″ Hy-Lok | 1/4″ Hy-Lok | QUOTE | ![]() |
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SV2F-6N-S316 | 0.73 | 3/8″ Female NPT | 3/8″ Female NPT | QUOTE | ![]() |
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SV2F-8N-S316 | 0.73 | 1/2″ Female NPT | 1/2″ Female NPT | QUOTE | ![]() |
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SV2F-8R-S316 | 0.73 | 1/2″ Female ISO | 1/2″ Female ISO | QUOTE | ![]() |
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SV2MF-6N-S316 | 0.73 | 3/8″ Male NPT | 3/8″ Female NPT | QUOTE | ![]() |
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SV2MF-8N-S316 | 0.73 | 1/2″ Male NPT | 1/2″ Female NPT | QUOTE | ![]() |
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SV2MF-12N8N-S316 | 0.73 | 3/4″ Male NPT | 1/2″ Female NPT | QUOTE | ![]() |
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SV2MH-6N8T-S316 | 0.73 | 3/8″ Male NPT | 1/2″ Hy-Lok | QUOTE | ![]() |
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SV2H-6T-S316 | 0.73 | 3/8″ Hy-Lok | 3/8″ Hy-Lok | QUOTE | ![]() |
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SV2H-8T-S316 | 0.73 | 1/2″ Hy-Lok | 1/2″ Hy-Lok | QUOTE |
NV Series Integral Bonnet Needle Valves |
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Applications
Instrument Isolation, General service Test Standard
Features
In-Line or Angle pattern
Stainless Steel, Brass,
Alloy 400(Monel), A105
PTFE 2-piece chevron stem packing
Metal-to-Metal Seat or PCTFE Soft Seat (Bubble Tight)
Specifications
– Maximum Operating Pressure :
5000 psig(350 barg) @ 100℉(38℃)
– Operating Temperature Range :
-65℉(-54℃) to 450℉(233℃)
GB Series Union Bonnet Valves |
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Applications
Handling corrosives
High temperature and pressure
Radioactive and hot condensates
Features
In-Line or Angle pattern
Stainless Steel, Alloy 400(Monel), A105
High temperature grafoil packing
Metal-to-Metal Seat
Back seat stem for safety
Specifications
– Maximum Operating Pressure :
6000 psig(420 barg) @ 100℉(38℃)
– Operating Temperature Range :
-65℉(-54℃) to 1200℉(649℃)
SVH Series High Pressure Bar Stock Needle Valves |
Applications
Instrument Isolation, Gas, Vapor or Liquid
Features
In-Line pattern
Stainless Steel, Alloy 400(Monel), Duplex
PTFE packing provides leak tight seal
and long life cycle
Metal-to-Metal Seat or PCTFE Soft Seat(Bubble Tight)
Specifications
– Maximum Operating Pressure :
10000 psig(700 barg) @ 100℉(38℃)
– Operating Temperature Range :
-65℉(-54℃) to 450℉(233℃)
Applications
Sour gas service
Handling slurries or solid impurities
Features
In-Line pattern, Bi-direction flow
Stainless Steel, Brass, Alloy 400(Monel)
High flow capacity
Delrin, PEEK or PCTFE seats
Replaceable O-Ring Seal and Soft Seat
Gauge Ports available
Specifications
– Maximum Operating Pressure :
6000 psig(420 barg) @ 100℉(38℃)
– Operating Temperature Range :
Delrin Seat :
-20℉(-29℃) to 250℉(122℃)
PEEK Seat :
-20℉(-29℃) to 400℉(205℃)
Features
Applications
Test Valves / Pilot plants
Features
Compact Design
Ensure safe relief of system pressure
Valve vent line pressure to atmosphere
Specifications
– Maximum Operating Pressure :
300 psig(20 barg) @ 100℉(38℃)
– Operating Temperature Range :
-20℉(-28℃) to 200℉(93℃)