Parker Toggle Valve

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  • Manufacturer: Parker Instrumentation
  • Product Family: V4LQ Series
  • Actuation: Double Acting
  • Application: Purge/Rapid Fill System, Test Panel
  • Body Material: ASTM B283 Alloy C37700 Brass
  • End Connection: Male Threaded x Male Threaded
  • End To End Distance: 1.88 in.
  • Handle Material: Nylon 6/6
  • Nominal Size: 1/4 in. x 1/4 in.
  • Pressure Rating: 300 PSIG CWP
  • Temperature Rating: -20°F to 200 °F
Parker V4LQ Series Toggle Valve, 1/4" x 1/4", MPT x MPT, 300 PSIG CWP, C37700 Brass, Fluorocarbon Rubber Seal, Double Acting, 0.36 Cv, In-Line, Toggle Valve.

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Product Description

Needle Valve; Type In-Line, Panel Mount; Actuation Type T-Bar Handle; Nominal Size 1 Inch x 1 Inch; Orifice Diameter 0.437 Inch; End Connection A-LOK Double Ferrule Compression x A-LOK Double Ferrule Compression; End to End Distance 3.94 Inch; Bonnet Type Union; Stem Type Regulating; Body Material ASTM A182 F316 Stainless Steel; Stem Material ASTM A564 630 Stainless Steel; Seal Material PTFE; Handle Material Stainless Steel; Temperature Rating -65 to 450 Deg F; Pressure Rating 6000 PSIG CWP; Inclusions/Features Stainless Steel Bonnet/Bonnet Nut/Stem Guide/Ball/Packing Nut/Packing Washer/Handle Screw/Locking Nut, Nickel Chromium Iron Alloy Bonnet Seal, Nylon 6/6 Dust Seal; Application Steam Blow Down Service, Process Control Line, High Temperature Sampling Line; Flow Capacity 1.82 Cv


Union Bonnet Design Ensures High Integrity Seal Under Severe Service Applications; Packing Below the Power Threads Protects Thread Lubricants from Media and Isolates the Lubricants from the Media; Dust Seal in the Packing Nut Protects Stem Threads from External Contamination; Stem Swivel Above the Packing Eliminates Entrapment Area and Increases Packing Life; 100% Factory Tested

Series/Model Information

Parker's U Series Union Bonnet valves are engineered for use at pressures up to 6,000 (414 bar) and temperatures as high as 1,200°F (649°C). The heavy duty design has a non-rotating lower stem that helps to extend packing life by removing stem rotation through the packing area. Stem packing below the threads isolates the thread lubricant from the flow, ensuring adequate lubrication regardless of the media.


PTFE Connector O-Ring/Retainer Seal/Stem Seal, 316 Stainless Steel Stem Washer/Panel Mounting Nut/Seat Retainer/Packing Nut/End Connector, Stainless Steel Handle Set Screw