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Pilot Operated Check Valves – LO, LOA 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.
Parker’s Parker LO & LOA Pilot Operated Check valves provide load holding where fluid leakage through the control valve may adversely affect the performance of the system such as clamps, outriggers, and work platforms. Additionally, they can be applied to prevent movement of a load while the pressure source is inactive and a control valve is inadvertently actuated.
A control valve with a free flow (motor) spool should be used on any circuit which includes a Pilot Operated Check. This spool option will prevent unwanted pressure build up between the Control valve and Pilot Operated Check Valve.
Markets:
• Aerial
• Agricultural Machinery
• Construction Equipment
• Defense
• Forestry Equipment
• Marine
• Material Handling Equipment
• Mining
• Misc Transportation
• Oil & Gas
• Other Mobile
• Other Natural Resources
• Rail
• Refuse
• Turf Equipment
• Vocational and Municipal Equipment
Features/Benefits:
• Standard porting options for the LO are 1/2” NPT and SAE-10
• Both versions are available in single and double acting versions
• Standard porting options for the LOA are 1/4” NPT, 3/8” NPT, and SAE-6
• Both Models are rated at 3000 PSI with SAE ports. The maximum recommend actuator flow for the LO is 25 GPM. The LOA is rated at a lower 8 GPM actuator flow
Applications:
• Suitable for various mobile applications
Read More...A control valve with a free flow (motor) spool should be used on any circuit which includes a Pilot Operated Check. This spool option will prevent unwanted pressure build up between the Control valve and Pilot Operated Check Valve.
Markets:
• Aerial
• Agricultural Machinery
• Construction Equipment
• Defense
• Forestry Equipment
• Marine
• Material Handling Equipment
• Mining
• Misc Transportation
• Oil & Gas
• Other Mobile
• Other Natural Resources
• Rail
• Refuse
• Turf Equipment
• Vocational and Municipal Equipment
Features/Benefits:
• Standard porting options for the LO are 1/2” NPT and SAE-10
• Both versions are available in single and double acting versions
• Standard porting options for the LOA are 1/4” NPT, 3/8” NPT, and SAE-6
• Both Models are rated at 3000 PSI with SAE ports. The maximum recommend actuator flow for the LO is 25 GPM. The LOA is rated at a lower 8 GPM actuator flow
Applications:
• Suitable for various mobile applications
| Action | SKU | Availability | Price | Configuration | Maximum Operating Pressure | Minimum Operating Temperature | Actuation Type | Seal Material | Connection Type | Flow Direction | Division | Maximum Operating Temperature | Weight | Maximum Flow Rate | Body Material | Connection Size | Mounting Type | Options | Product Style | Flow Rate (gpm) | Port Size | Valve Option |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LO-10-D | 2 in stock | POR | n/a | 3000 psi | -40 °F | Hydraulic Pressure | n/a | SAE | n/a | Hydraulic Valve Systems Division | +200 °F | 6 lb | 25 Gal/min | High Strength Cast Iron | #10 | In-Line | Double PO Check | Piolt Operated Check Valve | 25 | SAE-10 | Double | |
| LO-10-S | Backordered | POR | n/a | 3000 psi | -40 °F | Hydraulic Pressure | Nitrile | SAE | n/a | Hydraulic Valve Systems Division | +200 °F | 6 lb | 25 Gal/min | High Strength Cast Iron | #10 | In-Line | Single PO Check | Piolt Operated Check Valve | 25 | SAE-10 | Single | |
| LO-50-D | Backordered | POR | n/a | 2000 psi | -40 °F | Hydraulic Pressure | n/a | NPT | n/a | Hydraulic Valve Systems Division | +200 °F | 6 lb | 25 Gal/min | High Strength Cast Iron | 1/2" | In-Line | Double PO Check | Piolt Operated Check Valve | 25 | 1/2" NPT | Double | |
| LO-50-S | Backordered | POR | n/a | 2000 psi | -40 °F | Hydraulic Pressure | Nitrile | NPT | n/a | Hydraulic Valve Systems Division | +200 °F | 6 lb | 25 Gal/min | High Strength Cast Iron | 1/2" | In-Line | Single PO Check | Piolt Operated Check Valve | 25 | 1/2" NPT | Single | |
| LOA-25-D | Backordered | POR | n/a | 2000 psi | -40 °F | Hydraulic Pressure | n/a | NPT | n/a | Hydraulic Valve Systems Division | +200 °F | 2.75 lb | 8 Gal/min | High Strength Cast Iron | 1/4" | In-Line | Double PO Check | Piolt Operated Check Valve | 8 | 1/4" NPT | Double | |
| LOA-25-S | 1 in stock | POR | n/a | 2000 psi | -40 °F | Hydraulic Pressure | Nitrile | NPT | n/a | Hydraulic Valve Systems Division | +200 °F | 2.75 lb | 8 Gal/min | High Strength Cast Iron | 1/4" | In-Line | Single PO Check | Piolt Operated Check Valve | 8 | 1/4" NPT | Single | |
| LOA-38-D | Backordered | POR | n/a | 2000 psi | -40 °F | Hydraulic Pressure | n/a | NPT | n/a | Hydraulic Valve Systems Division | +200 °F | 2.75 lb | 8 Gal/min | High Strength Cast Iron | 3/8" | In-Line | Double PO Check | Piolt Operated Check Valve | 8 | 3/8" NPT | Double | |
| LOA-38-S | Backordered | POR | n/a | 2000 psi | -40 °F | Hydraulic Pressure | Nitrile | NPT | n/a | Hydraulic Valve Systems Division | +200 °F | 2.75 lb | 8 Gal/min | High Strength Cast Iron | 3/8" | In-Line | Single PO Check | Piolt Operated Check Valve | 8 | 3/8" NPT | Single | |
| LOA-6-D | Backordered | POR | n/a | 3000 psi | -40 °F | Hydraulic Pressure | n/a | SAE | n/a | Hydraulic Valve Systems Division | +200 °F | 2.75 lb | 8 Gal/min | High Strength Cast Iron | #6 | In-Line | Double PO Check | Piolt Operated Check Valve | 8 | SAE-6 | Double | |
| LOA-6-S | Backordered | POR | n/a | 3000 psi | -40 °F | Hydraulic Pressure | Nitrile | SAE | n/a | Hydraulic Valve Systems Division | +200 °F | 2.75 lb | 8 Gal/min | High Strength Cast Iron | #6 | In-Line | Single PO Check | Piolt Operated Check Valve | 8 | SAE-6 | Single |
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