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HANSEN TECHNOLOGIES
CORPORATION
Bulletin C401d
March, 2002
Flanged
3
/8" thru 4"
FPT, SW, WN, ODS
for refrigerants
HCK4-4 Check Valve
INTRODUCTION
The HCK4 series of dependable, compact, rugged
in-line check valves (disc type non-return valves) is
ideally suited for refrigerant flow control applications.
Valves open wide for flow in the arrow direction on
the valve body. Valves close quickly and
reliably when flow reversals occur.
Plated bodies and stainless steel seat discs and
springs enable them to withstand expected
industrial refrigeration conditions. Furthermore, these
check valves can be mounted in any position, close-
coupled to other valves, and use same flanges as
Parker R/S, Frick, and Henry.
ADVANTAGES
These compact check valves offer reliable operation
regardless of position. Corrosion resistant stainless
steel seat disc. Metal-to-metal seats facilitate durable,
tight closing of valves.
APPLICATIONS
These in-line check valves are designed to provide
refrigerant flow control to hot gas lines, liquid lines,
compressor discharge lines, suction lines, and hot
gas heated drain pans.
These valves are not recommended for use with
pulsating loads such as low speed compressor
discharge and screw compressor side port
applications. For applications such as these, use
Hansen HCK1 piston type check valves.
ADDITIONAL FEATURES
Mounts in any position
Less than 1 PSID wide opening pressure
Can be close-coupled
Low bubble leakage tolerance
For Ammonia, R22, R134a, and other approved
refrigerants
Dimensionally replaces R/S CK4A-2, -3, -4, -8, & -1
U.L. Listed
KEY FEATURES
HCK4 IN-LINE
CHECK VALVES
5
/8" thru 4" PORT
(16 thru 100 mm)