Hydraulic Pressure/Vacuum Relief Valves - H1 / HM1 Series

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

H1 - HM1 Series Pressure/Vacuum Relief Valves are used to maintain positive pressure in hydraulic reservoirs. The compact size, reusable bronze filter and high flow characteristics make this valve a popular choice. The HM1 version offers the same features and characteristics as the H1 Series with the option of a manual over ride function. This feature allows the operator to relieve the reservoir pressure before opening the tank for refilling, inspection or servicing. The H1 - HM1 Series are available in a wide range of pressure relief settings from 5 psi to 50 psi (in 5 psi increments) and a vacuum relief setting of 0.3 psi.

Technical Characteristics:
• Pressure Relief Setting Options (psi): 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
• Vacuum Relief Setting (psi): 0.3
• Filter: 10 micron, nominal
• Filter Type: Bronze - reusable
• Thread Sizes: 3/8"", 1/2"", 3/4"", 1""
• Port Ends: Male pipe thread, Male O-ring Boss - SAE threads
• HM1 version: Manual pressure relief button

Markets:
• General Hydraulics
• Industrial
• Construction
• Agriculture

Features/Benefits:
• Combines the functionality of two valves and a filter in one unit
• Bronze filter can be easily removed to be cleaned and reused
• Compact size
• High flow
• Wide variety of pressure relief settings
• HM1 has a manual pressure relief button

Applications:
• Hydraulic tanks and reservoirs

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SKU	Availability	Price	Maximum Flow Rate	Maximum Operating Temperature	Minimum Operating Temperature	Body Material	Actuation Type	Division	Maximum Operating Pressure	For Fluid Type	Seal Material	Filter Type	Pressure Control Range	Vacuum Relief Pressure	Special Options	Connection Thread Size (inch)	Thread Type	Cracking Pressure (psi)
H1-02-12MP	Backordered	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	2 psi	0.3 psi	na	3/4 - 14	Male NPTF	2
H1-05-12MP	1 in stock	$198.77	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	5 psi	0.3 psi	na	3/4 - 14	Male NPTF	5
H1-05-16MP	3 in stock	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	5 psi	0.3 psi	na	1 - 11 1/2	Male NPTF	5
H1-05-6MP	Backordered	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	5 psi	0.3 psi	na	3/8 - 18	Male NPTF	5
H1-20-12MP	Backordered	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	20 psi	0.3 psi	na	3/4 - 14	Male NPTF	20
HM1-05-12MP	Backordered	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	5 psi	0.3 psi	Manual pressure relief button	3/4 - 14	Male NPTF	5
HM1-10-12MP	64 in stock	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	10 psi	0.3 psi	Manual pressure relief button	3/4 - 14	Male NPTF	10
HM1-10-6MP	Backordered	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	10 psi	0.3 psi	Manual pressure relief button	3/8 - 18	Male NPTF	10
HM1-15-12MP	Backordered	POR	n/a	250 °F	-40 °F	Steel	Mechanical	Quick Coupling Division	60 psi	Hydraulic	Elastomeric	Bronze, 10 micron	15 psi	0.3 psi	Manual pressure relief button	3/4 - 14	Male NPTF	15

Hydraulic Pressure/Vacuum Relief Valves - H1 / HM1 Series

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