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Parker Hannifin Corporation • Refrigerating Specialties Division
2445 South 25th Avenue • Broadview, IL 60155-3891 USA
Telephone: (708) 681-6300 • Fax (708) 681-6306
Installation
Protect inside of valve from dirt, chips and moisture
during installation. Be sure to remove protective plugs
from valve before installation. Install the valve in an
accessible location for servicing. DO NOT INSTALL THE
CHECK VALVE AT THE INLET OF A SOLENOID VALVE,
OR A REGULATOR WITH AN ELECTRIC SHUT-OFF
FEATURE. DO NOT INSTALL AT THE INLET OF AN
OUTLET PRESSURE REGULATOR IN A SYSTEM
WHERE LIQUID MAY BE TRAPPED BETWEEN TWO
VALVES. Check Valves when used with such valves
should always be installed at the outlet of the valves.
The valve must be installed with the flow arrow on the
valve pointing in the direction of permissible fluid flow
through the valve.
The Type CK1 are for installation on horizontal pipelines
only. The valve must be installed with the cover on top.
Tighten the flange bolts evenly. Before putting the valve
into operation check the manual opening stem. For
automatic operation, turn the stem counterclockwise as
far as it goes; turn clockwise for manual open position.
The CK1 Check Valves may be closed-coupled to R/S
Control Valves and most hand valves by using a Special
R/S Male Adapter Ring.
Service Pointers
Dirt or other foreign material in the system is the greatest
single cause of valve malfunction. Before disassembling
a check valve for servicing, read and become familiar
with the Safe Operation Instructions in this bulletin as
well as in the current issue of Safety Bulletin RSB.
Check the following chart for possible symptoms and
corrections.
Symptom
Probable Reason
Correction
Valve does not
Stuck piston
Disassemble valve
close or there
due to dirt or
and clean
is leakage
chips.
thoroughly.
through valve.
Burrs on
Polish or replace
Piston
piston.
Manual stem
Unscrew manual
is in open
stem (turn
position
counterclockwise)
(turned
completely in).
Eroded or worn
Replace entire
seat on piston
piston-main valve
main valve
assembly.
Valve does
Stuck piston,
Disassemble valve
not open.
due to dirt or
and clean
chips.
thoroughly.
Warranty
All Refrigerating Specialties products are warranted
against defects in workmanship and materials for a
period of one year from date of shipment from factory.
This warranty is in force only when products are properly
installed, field assembled, maintained, and operated in
use and service as specifically stated in Refrigerating
Specialties Catalogs or Bulletins for normal refrigeration
applications, unless otherwise approved in writing by
Refrigerating Specialties Division. Defective products,
or parts thereof returned to the factory with transportation
charges prepaid and found to be defective by factory
inspection will be replaced or repaired at Refrigerating
Specialties option, free of charge, F.O.B. factory.
Warranty does not cover products which have been
altered, or repaired in the field, damaged in transit, or
have suffered accidents, misuse, or abuse. Products
disabled by dirt or other foreign substances will not be
considered defective.
THE EXPRESS WARRANTY SET FORTH ABOVE
CONSTITUTES THE ONLY WARRANTY APPLICABLE
TO REFRIGERATING SPECIALTIES PRODUCTS, AND
IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED
OR IMPLIED, WRITTEN OR ORAL, INCLUDING ANY
WARRANTY OF MERCHANTABILITY, OR FITNESS FOR
A PARTICULAR PURPOSE. No employee, agent, dealer
or other person is authorized to give any warranties on
behalf of Refrigerating Specialties, nor to assume, for
Refrigerating Specialties, any other liability in connection
with any of its products.
Safe Operation (See also Bulletin RSBCV)
People doing any work on a refrigeration system must
be qualified and completely familiar with the system and
the Refrigerating Specialties Division valves involved,
or all other precautions will be meaningless. This
includes reading and understanding per tinent
Refrigerating Specialties Division Product Bulletins, and
Safety Bulletin RSBCV prior to installation or servicing
work.
Where cold refrigerant liquid lines are used, it is
necessary that certain precautions be taken to avoid
damage which could result from liquid expansion.
Temperature increase in a piping section full of solid
liquid will cause high pressure due to the expanding
liquid which can possibly rupture a gasket, pipe or valve.
All hand valves isolating such sections should be
marked, warning against accidental closing, and must
not be closed until the liquid is removed. Check valves
must never be installed upstream of solenoid valves, or
regulators with electric shut-off, nor should hand valves
upstream of solenoid valves or downstream of check
valves be closed until the liquid has been removed. It is
advisable to properly install relief devices in any section
where liquid expansion could take place.
Avoid all piping or control arrangements which might
produce thermal or pressure shock.
For the protection of people and products, all refrigerant
must be removed from the section to be worked on
before a valve, strainer, or other device is opened or
removed. Flanges with ODS connections are not suitable
for ammonia service.
