Parker CK-6D Product Bulletin
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Parker CK-6D Product Bulletin

Parker CK-6D Product Bulletin

Dual gas powered suction stop valve
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Dual Gas Powered Suction
Stop Valve
Product Bulletin 50-25 E
Type: CK-6D
Purpose:
The CK-6D from Parker is an
economical solution to evaporator
equalization following a defrost cycle.
Combining equalizing and suction
stop functions reduces installation
costs.
This valve incorporates a pressure
pilot, built-in mechanical fail-
safe feature which prevents the
undesirable effects of an immediate
opening of the valve in the event of
an electrical power failure while the
evaporator is in defrost.
CK-6D is typically used for low
temperature applications in overfeed
or flooded systems, in wet return
lines, and on the liquid and gas
return legs of flooded evaporators.
Contact Information:
Parker Hannifin Corporation
Sporlan Division –
Refrigeration Business Unit
2445 South 25th. Avenue
Broadview, IL 60155-3891
phone (708) 681-6300
fax (708) 681-6306
www.parker.com/rs
rsd_orders@parker.com
CK-6D with S6A Pilots
Product Features:
•
Suitable for Ammonia, R-22,
R-134a, R-404A, R-410A, R-507,
and Other Common Refrigerants
•
Economical Solution to
Evaporator Equalization after
Defrost
•
Normally Open
•
Low Pressure Drop
•
Manual Opening Stem
•
Port Sizes: 40 to 100 mm
(1-5/8 to 4")
•
Use in Vertical or Horizontal Lines
•
Temperature Range: -51 to
104°C (-60 to 220°F)
•
Maximum Rated Pressure
(MRP): 28 barg (406 psig)
•
Heavy Return Spring
•
Minimum Pressure Drop to
Close: 0.35 bar (5 psi)

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Summary of Contents for Parker CK-6D

  • Page 1 Dual Gas Powered Suction Stop Valve Product Bulletin 50-25 E Type: CK-6D Purpose: The CK-6D from Parker is an economical solution to evaporator equalization following a defrost cycle. Combining equalizing and suction stop functions reduces installation costs. This valve incorporates a pressure...

  • Page 2: Table Of Contents

    Maximum Rated Pressure (MRP) ..28 bar (406 psig) Description Because of the return spring, there is no line pressure The CK-6D is based on the same valve body, principles, drop required to open the valve during refrigeration. This and length dimension as the standard CK-5 valves allows for a minimal pressure drop penalty in the suc- making for easy field replacements.

  • Page 3: Parts Description

    Solenoid Pilot #2 Solenoid Pilot #1 Adapter Bore Plate Secondary Piston Bleed Hole Primary Piston “N” Passage Opening Spring Manual Opening Stem Seal Cap Cross Section View Figure 1: CK-6D Valve Part Descriptions 40mm to 100mm (1-5/8” to 4”) Port Size.

  • Page 4: Principle Of Operation

    The main valve will open to it’s pressure pilot of the CK-6D needs to be 0.69 barg (10 psig) intermediate position, however, since residual pressure in above the pressure of the defrost relief or equalizing line, the coil is transmitted through the pilot regulator to the otherwise the valve will not open.

  • Page 5: Electrical

    Dual Gas Powered Suction Stop Valve (CK-6D) Bulletin 50-25 E - Page 5 Electrical CK-6D General Coil Information The pilot solenoids used on CK-6D stop valves, type S6A S6B Coils or S6B, are unique to the Sporlan Division - Refrigeration Inrush...
  • Page 6 Page 6 - Bulletin 50-25 E Dual Gas Powered Suction Stop Valve (CK-6D) Terminal Voltages/ Wattage Pilot Type Image Classification Certifications Diagram Frequencies (Holding) 24 VAC/50 Hz − 24 VAC/60 Hz − Class “F” approved 115 VAC/50 Hz 34.0 system with housing 120 VAC/60 Hz 34.0...

  • Page 7: Explosion View & Material List

    Dual Gas Powered Suction Stop Valve (CK-6D) Bulletin 50-25 E - Page 7 Explosion View & Material List Pressure Solenoid Pilot Pilot S6A Solenoid Pilot A2D Pressure Pilot Figure 2: Explosion View CK-6D Dual Gas Powered Suction Stop Valve...
  • Page 8 Item Description Material Item Description Material Seal Cap, A2D Aluminum 2011-T3 Nut Flange, CK-6D Body 40 to 50 mm ⁄ ⁄ to 2”) ” - 11 Gasket, Seal Cap, A2D Nylon Nut Flange, CK-6D Body 65 to 75 mm Nut, Packing, A2D 303 S.S.

  • Page 9: Replacement Part Kits

    Dual Gas Powered Suction Stop Valve (CK-6D) Bulletin 50-25 E - Page 9 CK-6D Replacement Part Kits Port Size Item Kit Description 40 mm 65 mm 50 mm 75 mm 100 mm ⁄ ⁄ (2”) (3”) (4”) ”) ”) 202110...
  • Page 10 Page 10 - Bulletin 50-25 E Dual Gas Powered Suction Stop Valve (CK-6D) CK-6D Replacement Part Kits (Cont.) Port Size Item Kit Description 40 mm 65 mm 50 mm 75 mm 100 mm ⁄ ⁄ (2”) (3”) (4”) ”) ”)

  • Page 11: Dimensions

    Clearance Zone: The top of the CK-6D requires a clearance of 76 mm (3") for the removal of the disc strainer, operation of pilot regulator. The bottom of the CK-6D valve requires a clearance of 102 mm (4") for the removal of bottom cover.

  • Page 12: Installation

    Opening Stem If the CK-6D is replacing a CK-2, S9A, or other gas powered suction stop valve of the market, the gas feed pilot solenoid must be removed of the installation and work with the solenoid pilots that CK-6D has only.

  • Page 13: Service Pointers

    Check for leakage through the pilot solenoids. lift stem is turned in, thereby mechanically holding the Check for backward installation of the CK-6D preventing piston in the open position. (d) Strainer/Disc in the Pilot the equalization with downstream pressure. (d) Viscous line, flanges may be plugged (Remove and clean).
  • Page 16 Parker or its subsidiaries or authorized distributors. To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems.

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