Pneumatic And Hydraulic Equipment Page 381

NEEDLE VALVES Optional Bubble-Tight Check Valve Available FLOW CONTROL A spring biased ball or optional poppet check provides full flow in one direction; a stainless steel, tapered needle provides a wide range of adjustment of flow in the controlled direction. A locknut prevents unwanted changes in adjustment. A tamperproof adjustment key is standard; a knurled knob is optional at slight extra cost. NEEDLE A wide range of flow adjustment is possible because of the fine thread, tapered needle. Unwanted changes in adjustment are prevented by a locknut. A tamperproof adjustment key is standard; a knurled knob is available at slight extra cost. CHECK A slight pressure differential fully opens or closes the ball or poppet check valve. This valve is available with either ball check or bubble-tight poppet check. FP = POPPET FLOW CONTROL CP = POPPET CHECK K = KNOB FLOW CONTROL VALVES CHECK VALVES Maximum Operating Pressure (Non-Shock Service) Brass-2,000 PSI Carbon Steel-5,000 PSI Stainless Steel-5,000 PSI Operating Temperature Range (O-Ring Packing) Viton: -15 to +400 F Threads NPTF Standard, 1/8", 1/4", 3/8", 1/2", and 3/4". SAE Threads on special order. Materials Housing, Plug, Body-Hexagon Brass, Hexagon Carbon Steel, Hexagon 303 Stainless Steel Needle-416 Stainless Steel on Steel and Stainless Steel Valves Back-up Washer-Teflon Knob-Aluminum Tamperproof Key-Cadmium Plated Steel Ball-Stainless Steel Retainer-Stainless Steel Poppet-Brass or Stainless Steel with Viton (Standard) O-Ring FLOW CONTROL VALVES NEEDLE VALVES CHECK VALVES Size Carbon Stainless Carbon Stainless Carbon Stainless (NPT) Brass Price Steel Price Steel Price Brass Price Steel Price Steel Price Brass Price Steel Price Steel Price FP10BK $31.42 - - N10B $18.69 N10S $21.48 - - C10B $16.78 C10S $18.27 C10SS $57.90 1/8" F10B $23.10 F10SK $27.70 F10SSK $93.62 N10BK $19.93 N10SK $22.78 N10SSK $73.35 CP10B $18.57 - - CP10SS $66.22 F10BK $24.21 - - - - - - FP20BK $38.85 F20S $29.20 - - N20B $25.57 N20S $26.89 - - C20B $24.32 C20S $26.39 C20SS $77.46 1/4" F20B $29.51 F20SK $30.40 F20SSK $106.35 N20BK $26.69 N20SK $27.90 N20SSK $92.60 CP20B $28.04 - - CP20SS $89.39 F20BK $31.09 - - - - - - FP25BK $49.44 F25S $38.23 - - N25B $35.81 N25S $34.62 - - C25B $31.31 C25S $30.51 C25SS $97.12 3/8" F25B $40.32 F25SK $39.23 F25SSK $138.46 N25BK $37.16 N25SK $35.71 N25SSK $122.41 CP25B $33.89 - - F25BK $41.78 - - - - - - 1/2" F30B $58.34 F30S $51.67 - - N30B $52.60 N30S $45.15 - - C30B $42.91 C30S $36.73 C30SS $128.13 F30BK $59.46 F30SK $52.69 F30SS316K $173.58 N30BK $53.72 N30SK $45.75 N30SSK $159.53 CP30B $55.64 - - 3/4" F35B $101.47 - - N35B $84.81 - - - C35B $68.47 C35S $51.67 - - F35BK $103.26 F35SK $90.91 - - N35BK $85.81 N35SK $71.34 - - - - - - SAE Thread SAE-4 - - - - - - SAE-6 - - FM620SK $30.91 - - - NM620SK $27.90 - - - - - - SAE-8 - - - NM830SK $45.75 - - - - - - SAE-12 - - - NM1235SK $71.34 - - - - - - *Soft seat check valves if left seated for a period of time, will have the rubber adhere to the metal it is in contact with. This results in an initial high crack point due to sticking. The degree depends on many things (time seated, pressure, etc.). PNEU-TROL FLOW CONTROL, NEEDLE AND CHECK VALVES DIMENSIONS Cv Factor Max Flow (GPM) Cracking Pressure PIPE A MAX. OPEN FLOW CONTROL FLOW CONTROL SIZE HEX B C D E O NEEDLE VALVE CHECK VALVE CHECK VALVE NEEDLE VALVE CHECK VALVE 1/8" 11/16 7/8 13/64 1-3/4 1-15/32 .107 .20 .23 1.5 3.2 1 to 2.5 PSI* 1/4" 7/8 1 23/64 2-3/8 2 .156 .43 .54 3.0 7.0 1 to 2.5 PSI* 3/8" 1-1/16 1-13/16 11/32 2-3/4 2-1/4 .219 .78 .83 5.0 13.5 1 to 2.5 PSI* 1/2" 1-5/16 1-7/16 15/32 3-3/16 2-21/32 .281 1.24 1.47 8.0 22.5 1 to 2.5 PSI* 3/4" 1-5/8 1-5/8 17/32 3-9/16 2-15/16 .343 1.93 1.90 12.0 34.0 1 to 2.5 PSI* D E L T R O L Deltrol JHF Catalog [ Volume 7 ] (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com 381 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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