Pneumatic And Hydraulic Equipment Page 728

2-port/2-position Normally Closed Poppet Valves VHLA Series Rotary Hand Valves 1/4", 3/8", and 1/2" NPT porting EXCELON design allows in-line or modular installation with other 73 and 74 Series products. Inlet and outlet ports are not threaded. Controls rate of downstream air pressure buildup at system start up. Cylinders and other air operated devices are eased into normal starting positions, reducing the possibility of equipment damage and hazard to user. Application of downstream pressure can be delayed for as long as 50 seconds, depending on the setting of the adjustable needle valve and downstream air volume. Smooth start valves must be installed downstream of a directional control valve such as a Norgren Poppet or Lockout Valve on the preceding pages. Short stroke, cushioned poppets for long service life. Aluminum die casting design for heavy applications Detented center position Easy grasp and rotate handle Cvs of 0.4 to 3.1 Port sizes of 1/4", 3/8", and 1/2" 2 or 3 position functions available Installation Type Part No. Price Modular P74E-NNN-NNN $207.50 Technical Data Fluids: Filtered and lubricated compressed air. Inlet Pressure Range: 30 to 250 psig. Operating temperature*: -20 to 130F. Average Flow Factor (C v ): 4.0 Materials Body: Zinc Pistons, Poppets: Aluminum Elastomers: Nitrile Technical Data Fluids: Compressed air Maximum operating pressure: 140psi (9.7 bar) Temperature Range: 40 to 140F* (5 to 60C) *With a dew point of supply air less than air temperature below 35F (2C). Flow: 1/4" Cv 0.4 3/8" Cv 1.1 1/2" Cv 3.1 Materials of Construction Body: Die cast aluminum P74 SMOOTH START VALVES Operation Order Information Port Size Function Part No. Price 1/4" 3 position, 4-way VHLA200-02 $52.20 1/4" 2 position, 4-way VHLA202-02 $52.20 3/8" 3 position, 4-way VHLA300-03 $67.45 1/2" 3 position, 4-way VHLA400-04 $81.30 Options Selector V H L A * * * - * * Body 2 1/4'' 3 3/8'' 4 1/2'' Port size 02 1/4'' 03 3/8'' 04 1/2'' Piping & Mounting 0 Side piping/ body mounting Position Symbol 0 3-position, closed center 2 2-position Norgren pneumatics (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j JHF Catalog [ Volume 7 ] 728 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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