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ck6d valve clark johnson co

Refrigerant Check and Isolation Valves

 

Gas Powered Suction Stop Valve- CK-6D

parker refrigeration Clark Johnson Co

The CK-6D is a suction stop valve for hot gas defrost applications. This normally open valve features dual solenoids for equalization and a pressure regulator to prevent the valve from opening during defrost in the event of a power loss.

 

  Product Overview

     Specification

 

The CK-6D operation is based upon the same principle as the R/S CK-5 gas powered stop valve, with the added feature of an internal vent function, allowing for equalizing after defrost through one valve. This heavy duty gas-powered valve is suitable for ammonia and other refrigerants, certain oils and other fluids approved for use in refrigeration. The CK-6D is a pilot operated, dual-position valve. This valve is equipped with a manual opening stem and A2D pressure pilot. The CK-6D is a normally open valve during refrigeration, with both pilot solenoids de-energized. This valve's position will remain unchanged during refrigeration (opened) should power be interrupted to the pilot solenoids during this mode. During defrost, both solenoids are energized which will close the main valve. Should a power failure occur while an evaporator is in defrost, the valve is designed to re-position itself to its internal vent mode. This will slowly bleed the coil pressure down to the suction line pressure. This eliminates the prospect of a "suction shock" condition in the event of a power failure. The Type CK-6D Gas-Powered Valve is furnished with FPT Internal NPT (U.S. Standard Taper Pipe Thread), Socket Weld, Weld Neck or ODS (solders over copper tubing of given diameter) connections. The valve may be easily removed from between the flanges to make servicing a breeze.

 

Markets:

• Industrial Refrigeration

• Commercial Refrigeration

 

Features and Benefits:

• Economical Solution to Evaporator Equalization after Defrost

• Low Pressure Drop

• Heavy Return Spring

• Manual Opening Stem

• Integrated S6B pilot solenoids

• Standard Coil Housing Meets NEMA 3R and 4 - Rain Tight

• Normally Open

• Maximum Rated Pressure (MRP): 27.6 bar (400 psig)

 

Application:

• Low temperature evaporators

• Hot Gas Defrost

 

MINIMUM WORKING TEMPERATURE (C)

-50°C

 

MINIMUM WORKING TEMPERATURE (F)

-60°F

 

MAXIMUM WORKING TEMPERATURE (C)

105°C

 

MAXIMUM WORKING TEMPERATURE (F)

220°F

 

MAXIMUM PRESSURE (BAR)

27.6bar or 28bar

 

MAXIMUM PRESSURE (PSIG)

400psig or 406psig

 

TYPE

CK6D

 

PORT SIZE (MM)

40mm to 100mm

 

PORT SIZE (INCH)

1-5/8" to 4"

 

SOLENOID TYPE

S6A or S6B

 

PILOT FLANGE TYPE

FPT or Socket Weld

 

PILOT CONNECTION SIZE (INCH)

3/8" to 3/4"

 

FLANGE TYPE

Socket Weld, Weld Neck, No Flange

 

CONNECTION SIZE

None or 1-1/2"to 4"

 

COIL TYPE

Please Configure Part for Coil Type Specification

 

STRAINER TYPE

Without Strainer or With Strainer

 

VALVE MATERIAL

Standard Valve Material or Meets Pressure equipment Directive (PED)

 

PLATING

No Plating

Clark Johnson Company, Inc.       2016