Chinese Professional Hydraulic Valve Types - HPLK PILOT OPERATED CHECK VALVES – Hanshang Hydraulic

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Chinese Professional Hydraulic Valve Types - HPLK PILOT OPERATED CHECK VALVES – Hanshang Hydraulic Detail:

Flow is allowed to pass from V1 to C1 when pressure at V1 rises above the spring bias pressure and the poppet is pushed from its seat. The valve is normally closed (checked) from C1 to V1; when sufficient pilot pressure is present at X port, the pilot piston acts to push the poppet from its seat and flow is allowed from C1 to V1. Precision machining and hardening processes allow virtually leak-free performance in the checked condition.

Technical data

Model	HPLK-1/4-20	HPLK-3/8-35	HPLK-1/2-50	HPLK-3/4-100	HPLK-1-150
Max Flow rate（L/min）	20	35	50	100	150
Max operating pressure（MPa）	31.5
Pilot ratio	4.7:1	4.4:1	4.6:1	3.8:1	3.2:1
Valve body（Material）Surface treatment	（Steel body）Surface clear zinc plating
Oil cleanliness	NAS1638 class 9 and ISO4406 class 20/18/15

HPLK Installation Dimensions

HPLK-1-150 Installation Dimensions

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Related Product Guide:
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All About Hydraulic Check Valves

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