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Parker Valve 4Z-V4LR-SS 1/4" 316 Stainless Steel Needle Valve 1/4" Compression Type

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Package Details

Shipping Weight: 0.3 pounds
Package Size: 3.6 x 2.5 x 1.9 inches

Product Description

Parker V Series Needle Valves are designed to provide positive leak tight shut-off and coarse regulation of fluids utilized in process and instrumentation applications. These valves are manufactured from stainless steel or brass forgings and are a family of five integral bonnet designs with packing above the stem threads. From the smallest V2 model to the largest V12 model - all valves are capable of working at system pressures up to 5,000 psig (34.5 MPa) CWP at temperatures as high as 450 degree F (232 degree C). This family of valves can accommodate tubing as small as 1/16 inch and pipe as large as 1/2 inch. Flow coefficients (Cv) range from 0.12 to 1.80. Three stem types are available. A regulating stem type (N) provides coarse regulation with metal-to-metal shut-off in liquid service. A blunt R stem type is typically used for on-off control of liquids. The PCTFE stem type is recommended for tight shut-off and coarse regulation in both liquid and gaseous service.

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