Needle valves are manual linear motion valves for precise flow control in low flow, small pipe applications. Models provide excellent performance and reliability. They have a tamper-proof design and blowout-proof stem. A few models are designed to be used in pressure or non-critical vacuum applications.

 

 

 

Series NVII Needle Valve Economical, Pressures Up to 2000 psi, Blowout-Proof Stem   The Model NVII Needle Valves provide easy flow regulation in all applications, including shut off and throttling for pressure gages and instruments. With a one piece, hot forged brass body construction, years of maintenance-free service can be expected. The Model NVII, with its tamper-proof design and blowout-proof stem, provides excellent performance and reliability.       Product Applications   Instrument line shut off, instrument isolation, drain valve, and pressure gages     Features   Pressures to 2000 psi One piece body construction Tamper proof design and blowout-proof stem   Models & Ordering   Model Description NVII-1B Needle valve (female x female). NVII-2B Needle valve (male x female).

 

 

 

 

 

Series HNV Needle Valve 1-Valve Block Manifolds For Use with Gas and Liquids, Pressures Up to 6000 psi                       Series HNV Needle Valve, For Use with Gas and Liquids, Pressures Up to 6000 psi (Female x Female Connections)       Series HNV Needle Valve, For Use with Gas and Liquids, Pressures Up to 6000 psi (Male x Female Connections)       Series HNV Needle Valve, For Use with Gas and Liquids, Pressures Up to 6000 psi (Male x Male Connections) - HNV-SSS11B shown           Series HNV Block Manifolds is a barstock style needle valve that is designed for isolating instruments from liquids or gases. The valve series features fine threading and large seat area to ensure tight shutoff. Wetted materials are 316 SS and PTFE making these ideal for use with corrosives. The HNV has been tested to assure vibration and thermal stability. Body includes a lock pin to prevent accidental bonnet disengagement. The HNV is available in male x female and female x female connections from 1/8" to 1". Tee handle is constructed of 316 SS and allows low torque operation.       Product Applications   Instruments line shut off, instrument isolation, drain valve, specially designed for gas service and liquid applications     Models & Ordering     Model Description HNV-SSS21B 1/8" needle valve, female x male. HNV-SSS22B 1/4" needle valve, female x male. HNV-SSS23B 3/8" needle valve, female x male. HNV-SSS24B 1/2" needle valve, female x male. HNV-SSS25B 3/4" needle valve, female x male. HNV-SSS26B 1" needle valve, female x male. HNV-SSS31B 1/8" needle valve, female x female. HNV-SSS32B 1/4" needle valve, female x female. HNV-SSS33B 3/8" needle valve, female x female. HNV-SSS34B 1/2" needle valve, female x female. HNV-SSS35B 3/4" needle valve, female x female. HNV-SSS36B 1" needle valve, female x female.

 

 

 

 

 

Model TNV PTFE Needle Valve All PTFE and PCTFE Wetted Parts   The Model TNV PTFE Needle Valve is designed for laboratory and industrial applications for regulating corrosive gases and liquids for high purity services. Media only come in contact with PTFE and PCTFE. Valve spindles are made of ridged PCTFE to minimize "creeping" normally associated with PTFE. The TNV is designed to be used in pressure or non-critical vacuum applications and can be used as a shut off valve.           Models & Ordering     Model Description TNV-1 PTFE needle valve, female x female.