HCK4LR Gravity Drain Check Valve
The HCK4 “LR” series of in-line gravity drain check
valves are dependable, compact, and rugged. The HCK4
“LR” gravity drain check valves feature a low wide-opening pressure differential suitable for liquid transfer
systems and other low-pressure-drop applications. In
addition, an optional, specially-designed adapter allows
direct replacement of existing 3″ and 4″ Wolf-Linde and
H.A. Phillips gravity drain check valves without repiping.
HCK4 Inline Check Valve
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.
HCK1 Piston Type Check Valve
These flanged, heavy-duty, piston-type check valves
control the flow of refrigerant. Valves open wide for
flow in the direction of the arrow on the valve body.
Valves close tight when flow reversals occur. The
piston design minimizes pulsations.
Frost Master
The Hansen Frost Master ® is an easy-to-use defrost
controller for efficient removal of frost accumulation
on evaporator coil surfaces. This controller uses
simple, reliable solid-state electronics with a precision
quartz time clock and time adjusting slide knobs to
sequentially operate through logical defrost steps for
smooth but complete and effective defrosting. The
SPDT relays facilitate flexible connection of solenoid
valves and control relays. Defrost mode and step
times are easily viewed through the clear cover of the
NEMA 4 enclosure. Typically, one controller is used
per defrost control valve group.
HS9B, HS9BW Gas-Powered Solenoid Valve
These strong, heavy-duty, gas-powered solenoid valves are designed to control the flow of refrigerant in large commercial and industrial applications.
They require no pressure drop to operate and have no internal bleed to suction.
A dual pilot solenoid valve assembly introduces a high pressure refrigerant source which closes these valves. To open valves, pressure is bled-off back through the low pressure bleed pilot valve and upstream line pressure plus the spring causes the valve to open wide.
HCK5D 2-Step Gas-Powered Suction Stop Valve
These heavy-duty, flanged, gas-powered, 2-step suction stop valves are designed to control the flow of refrigerant in large industrial and commercial refrigeration systems.
They remain normally open via a spring and require no pressure drop to operate. A single pilot solenoid valve is required to control a higher pressure refrigerant gas which closes these valves during defrosting.
The HCK5D valve has an internal, controlled bleed-down (equalize) feature which will not allow the main seat to open until the pressure across the valve is at a lower, safer pressure differential. This eliminates the need for a separate bleed-down solenoid valve, greatly simplifying piping and reducing installed costs.
If a loss of power occurs during defrost, evaporator pressure is utilized to keep the main valve seat closed until bleed-down is complete.
HCK5 Gas-Powered Suction Stop Valve
These heavy-duty, durable, ductile iron or cast steel body, gas-powered suction stop valves are designed to control the flow of refrigerant in large industrial and commercial applications.
They remain normally open via a spring and require no pressure drop to operate. A single pilot solenoid valve is required to control a higher pressure refrigerant gas which closes these valves during evaporator defrosting.
If an electrical power failure occurs during the hot gas step of a defrost cycle, the auxiliary pressure pilot valve will keep main valve seat closed until pressure inside evaporator is reduced to the pressure setting on the pilot.
HCK2 Gas-Powered Suction Stop Valve
These heavy-duty, flanged, gas-powered suction stop valves are designed to control the flow of refrigerant in large industrial and commercial applications.
They remain normally open via a spring and require no pressure drop to operate. Valves are normally installed on their side for better conveyance of liquid overfeed or oil and to avoid trapping.
A single pilot solenoid valve is required to control a higher pressure refrigerant gas which closes these valves during defrosting.
Gauge, Purge, & Transducer Valves
Hansen’s specially designed Gauge, Purge, and Transducer Valves feature tough, forged steel bodies, compact size, and polished stainless steel stems.
Their patented o-ring plus packing dual-seal design and polished stainless steel stems provides leak-free packing. The safety stem design prevents removal of stem from body or stem “blowout”. A Long Neck ® version is available that provides extra clearance for gauge-turning rotation. They are available in 1/4 ” or 3/8″ MPT or FPT globe or angle sizes and styles.
Hansen’s Gauge, Purge, and Transducer Valves are available with seal caps, bar handles, or bare stems. Often used to isolate pressure gauges on regulators, these valves can also be used to pump out, purge, and meter refrigerant liquid or gas.
Hand Expansion Valves
These precision-calibrated, adjustable, slotted plug flow regulating valves (hand expansion valves) are ideal for metering or flashing expansion of liquid refrigerants.
Their slotted plugs are more tolerant of dirt particles than are common metal-seated taperedplug expansion valves, and are less susceptible to wire drawing.
Valves 2½” (65 mm) and larger have a characterized plug. All valves have near linear flow characteristics per turn open and are tight closing with Teflon seats. These valves have stainless steel stems with back seating for seal replacement. The patented non-leak seal plus packing design permits low torque operation for valve adjustments since the packing nut requires little tightening. Bar handle or yellow seal caps distinguish them from shut-off valves.