Standards
Port Size
- 1-1/4" (32mm) (28)
- 1-1/2" (40mm) (44)
- 2" (50mm) (32)
- 2-1/2" (65mm) (32)
- 3" (80mm) (20)
- 4" (100mm) (20)
Connection Size
- 1" (12)
- 1-1/4" (12)
- 1-1/2" (28)
- 1-3/4" (12)
- 1-3/8" (4)
- 1-5/8" (4)
- 2" (16)
- 2-1/2" (16)
- 2-1/8" (4)
- 2-5/8" (4)
- 3" (30)
- 3-1/8" (4)
- 3/4" (12)
- 4" (14)
- 4-1/8" (4)
Connection Style
- FPT (Female Pipe Thread (44)
- SW (Socket Weld) (44)
- WN (Weld Neck) (44)
- ODS (24)
- Weld In Line - Socket Weld (20)
Model
Finish
Brands
Hansen HCK5D/HCK5DW Gas Powered Two Step Suction Stop Valves
The Hansen HCK5D is a heavy-duty, gaspowered two step suction stop valve which is self-equalizing and includes a delayed opening feature after defrost or a power failure. The HCK5D valve provides an internal, controlled bleed-down (equalize) circuit which will not allow main seat to open until the pressure across the valve is at a lower, safer pressure differential. This is accomplished by a unique, internal bleed-down piston design, thereby greatly simplifying external control valve group piping and reduces installed cost. Valves remain normally open during refrigeration via a spring and require no pressure drop to operate. A higher pressure refrigerant gas closes the valve during defrosting. If loss of power occurs during defrost, evaporator pressure is utilized to keep valve closed until bleed-down occurs.