Automation & Accessories
3-Way Assemblies Metal or Rubber Seated 125/150 Lb. Flanging
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PDC's 3-Way Assemblies are shipped as a complete unit, assembled, mounted and tested,
ready for field installation. Two valves are mounted on a 125 lb. cast iron tee; one valve
complete with power actuator the second valve controlled through connecting slave linkage.
The valves are normally linked so that as one valve opens the other valve closes. The tee
arrangement desired should be specified by indicating the appropriate tee position (1 through
7 below), and the placement of both the power valve and slave valve respectively as on:
Plan View
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Selection Guidelines
- Each port on tee is designated by A, B or C.
- All tee arrangement numbers are based on plan view of the tee (i.e. looking down on tee and top of valve shaft as shown in example below).
- Power valve (valve with actuator) is designated by the first letter after the tee selection number. Either A, B, or C.
- All tee arrangements are based on the bracket for the power valve to be positioned at 12:00 o'clock in the plan view.
As an example, the plan views shown below are tee arrangement:
- Tee Selection Number
- B. Power Valve
- C. Slave Valve
| Plan View: Pneumatic | Plan View: Electric |
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More Accessories offered by PDC:
- PDC Combination 10-Position Positive Locking & Infinite Throttling Lever
- PDC Automation Packages
- PDC 3-Way Assemblies for Metal or Rubber Seated 125-150 lb. Flanging
- PDC Universal Brackets & Linkages
- Types of Stuffing Boxes
- Seat Options
- Shaft Options
- Metal Seat Materials Options
Additional Information
- Valve Sizing & Engineering Data
- Standard Torque Chart
- Standard Swing Thru CV Data
- Standard Leakage Rate
Coraopolis, PA 15108
ph: 724.695.3440 toll free (US): 888-PDC-4070 fax: 724.695.8635
email: Sales@pdcvalve.com