PFW VALVES
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DeZURIK 3-WAY AND 4-WAY PTW/PFW VALVES TECHNICAL SPECIFICATIONS

General Specifications Style: 3- and 4-Way Tapered Plug Valves. Materials: Cast Iron, ASTM A126, Class B Aluminum, ASTM B26, Alloy 713.0 Carbon Steel, ASTM A216, Grade WCB 316 Stainless Steel, ASTM A351, CF8M Cast Iron body with hard natural rubber lining. Flange faces and all internal surfaces are lined. Sizes: 3-16" (80-400mm) End Connections: ANSI Class 150 flanged Flanged with BS4504 and DIN, PN 10 drilling Flanged with BS4504 and DIN, PN 16 drilling Flanged, Class 150 BS Table D Flanged, Class 150 BS Table E Flanged, Class 150, JIS 10 Body Rating: 125 psi (861 kPa) C.W.P. non-shock...

For tight shutoff, it is recommended that the flow be against the back side of the plug. Cv/Kv Values Note: Cylinders are sized for full 125 CWP rating. *Higher maximum shutoff pressure differential available on application.

Valve for Lever Operation Chain for chainwheel actuators — 0.5 lbs (0.2 kg) per foot. Note: Net weight in pounds (kilograms) — Weights are approximate and do not include crating.

Ordering To order, simply complete the valve order code from the information shown. An ordering example is shown for your reference. Valve Style Give valve style code as follows: Plug Style Give plug style code as follows: Combination Number Valve Size Give valve size code as follows: Note: Combination 0 available with cylinder actuators on application. *Combination 2 requires double plug style. Plug Facing Give plug facing code as follows: End Connection Give valve size code as follows: F1 Flanged, ANSI Class 150 Flanged, Class 150, BS Table D Flanged, Class 150, BS Table E M = Metal (Same...

Lever Actuators 3- and 4-Way valves through 10" (250mm) size can be furnished with levers to provide the lowest cost control. However, handwheel or powered actuators are recommended for easier operation, for applications exceeding listed shutoff pressures and where sudden valve closure may cause water hammer. Levers can provide full 360° plug rotation or can be furnished with stops to limit plug travel, as indicated by combination number. In addition, lever actuated valves include a locking screw to lock the plug in the desired position. Ordering Valve for Lever Actuation (LV) Order lever...

Double Handwheel Actuators Lift, turn, reseat double handwheel actuators provide dead-tight shutoff when used on valves with resilient faced plugs. The totally enclosed and sealed construction protects moving parts from damage or corrosion. Continual lubrication is not required for operating ease. The heavy-duty, corrosion resistant bearings in the actuator assure lasting easy valve operation and overall reliability. Actuator castings, gears and shafts also add to reliability by assuring permanent alignment of moving parts for smooth, easy operation. Single Handwheel Actuators Single...

Dial Indicating Floorstand (FSDI) For use with single handwheel actuators with combination numbers 1, 2, 3 or 4 (90° rotation). Provides remote operation of valve. Includes floorstand, fittings, dial, and handwheel mounted on the floorstand. The extension rod must be ordered separately. To order floorstand, add FSDI to the valve and actuator order code. Ordering Example: PTW,4,F1,CI,6,S-1-M*GS-6-HD8,FSDI Neck Extension (ENK) For use on all manual and powered G-Series Actuators. Included is an extended valve neck and shaft. Ordering To order as part of a complete valve and actuator assembly,...

Chainwheel Actuators Chainwheel actuated valves are furnished with chainwheels and chain guides. To order chainwheel actuated valves, add the actuator code, as listed in the chart, to the valve order code. The chain must be ordered separately — one length for single chainwheel actuators and two lengths for double chainwheel actuators. Ordering Example for Double Handwheel Actuators: ACC*CN104 Chain: 12 feet ACC*CN102 Chain: 12 feet

Cylinder Actuators Cylinder actuators include both on-off and positioning, double-acting models. Actuators can be used with either pneumatic or hydraulic supply. They provide 90° rotation and can be used with 3- and 4-Way valves which have all-metal or hard rubber lined plugs only. Valves with cylinder actuators do not provide dead-tight shutoff. Plug Adjusting Device A threaded collar maintains constant clearance between the plug and seat to assure smooth valve operation. Plug-to-seat clearance is easily adjusted by turning the collar. Manual Valve Operation A manual nut connected to the...

Cylinder Actuators Ordering Cylinder Actuators To order cylinder actuators, add the actuator number from the following chart to the valve order code. Also add the code letter "A” or "B” to indicate the appropriate actuator mounting for the combination number. Supply pressure is 50-100 psi (345-689 kPa). When ordering hydraulic actuators, specify supply media if oil or water. Preferred mounting positions are standard, 90°, 180° and 270°. However, actuators can be mounted at 30 degree increments clockwise from standard. Ordering Example: PTW,4,F1,CI,6,S-1-M*GS-6-PC6-A Actuator mounted 180°...

Positioner Specifications

Speed Control Valves To control valve opening or closing speed on pneumatic actuators. Adjustable. Mounted. Must be ordered as part of a complete valve and actuator assembly. Ordering Example: ACC*PCFP Electric Motor Actuators Electric motors offer reliable and economical valve operation on 3- and 4-Way valves with metal and hard rubber lined plugs. Valves with electric motor actuators do not provide dead-tight shutoff. When ordering electric motor actuators, specify electrical characteristics, flowing media, pressure drop, speed of operation, and actuator accessories or controls required.

Material Groups Group 1 = Cast Iron, Aluminum Group 2 = Carbon Steel Group 3 = Stainless Steel, Alloys Group 4 = Cast Iron/Hard Rubber Lined Inches Millimeters

Inch Millimeter Single Handwheel/Chainwheel Handwheel or Chainwheel Actuator Code Inch Millimeter Valve Size Inch Millimeter