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Parker's, in line check valves are one way flow control devices used primarily in hydraulic systems to eliminate potential damage caused by fluid back pressure.
California Residents: Prop-65 Warning
CV Series Hydraulic Check Valves (3,000) psi are in line, one way valves that have a two piece modular design. The larger body results in less pressure drop and increased performance. These hydraulic check valves have standard spring crack pressures of 5 and 65 psi. The CV Series are available in a range of sizes up to 1"" and flow capacities to 100 gpm.
CV Series Hydraulic Check valves are important components that are often overlooked when building a fluid system. A check valve can optimize system performance in the following ways:
• Ensure hydraulic fluid flows in only one direction
• Eliminate potential damage from back pressure
• Isolate sections of a system or system components
Basic check valve construction consists of a valve body with an inlet and an outlet port. Inside, a moveable poppet valve is controlled by spring pressure. In most cases the valve is normally closed, opening when the fluid pressure is greater than the spring force (crack pressure), thus allowing the fluid to flow in only one direction. When reverse flow attempts to enter though the outlet the poppet closes and flow through the valve is stopped.
Hard seat, hydraulic check valves utilize a durable metal to metal seal to withstand high flow surges and provide longer service life.
Technical Characteristics:
• Sizes: 1/4”to 1""
• Material: Steel
• Inlet Port Ends: Male UNF, Male UN
• Outlet Port Ends: Male UNF, Male UN, Male UNS
• Fitting Styles: Male Flare Inlet to Male Flare Outlet, Male O-Ring Boss Inlet to Male Seal-Lok Outlet
• Fitting O-ring Material: Nitrile
• Optional crack pressures available
• Orificed valve option
• Custom shapes and configurations
Note: Some options may not be standard configurations. Please contact the Quick Coupling Division for availability and delivery.
Markets:
• Industrial
• Construction
• Agriculture
• Transportation
• MRO
Features/Benefits:
• Allows the fluid to flow in only one direction (one way valves), protecting the system from fluid back pressure
• All steel construction
• Low pressure drop for increased performance
• Poppet valve is heat treated to help prevent galling and damage from shocks and surges
• Optional crack pressures are available on request
• Optional orificed valve allows metered flow when the valve is closed. Orifice bore size is determined by application requirements.
• Custom shapes and configurations can integrate special features to reduce the number of components and potential leak points in a system
Applications:
• Industrial, mobile, and construction equipment
• Restrictor Check Circuit
• High/Low Pump Circuit
• Slow Advance/Rapid Return Circuit
• Oil Cooler By-Pass Circuit
• Sequence Circuit
• Pilot Pressure Circuit
• Accumulator Circuit
| Compliance, Certifications & Safety |
|---|
| Safety Guide: Quick Couplings and Related Accessories |
| Literature and Reference Materials |
|---|
| Catalog 3800 Quick Coupling Products |
| Fluid Compatibility Chart |
| Port End Assembly Guide |
| Products | Cracking Pressure (psi) | Body Size (inch) | Inlet Port Connection Type | Inlet Port Size (inch) | Outlet Port Connection Type | Outlet Port Size (inch) |
|---|---|---|---|---|---|---|
| CV-250-MFMF-5 | 5 | 1/4 | Male JIC 37 degree | 7/16 - 20 UNF | Male JIC 37 degree | 7/16-20 UNF |
| CV-250-MOFO-5 | 5 | 1/4 | Male SAE O-ring Straight Thread | 7/16 - 20 UNF | Female SAE O-ring Straight Thread | 5000 |
| CV-370-MFMF-5 | 5 | 3/8 | Male JIC 37 degree | 9/16 - 18 UNF | Male JIC 37 degree | 9/16-18 UNF |
| CV-370-MFMF-65 | 65 | 3/8 | Male JIC 37 degree | 9/16 - 18 UNF | Male JIC 37 degree | 9/16-18 UNF |
| CV-370-MOMS-5 | 5 | 3/8 | Male SAE O-ring Straight Thread | 9/16 - 18 UNF | Male Seal-Lok | 11/16-16 UN |
| CV-370-MPFP-5 | 5 | 3/8 | Male NPTF | 3/8 - 18 NPTF | Female NPTF | 3/8 - 18 NPTF |
| CV-370-MPMP-5 | 5 | 3/8 | Male NPTF | 3/8 - 18 NPTF | Male NPTF | 3/8 - 18 NPTF |
| CV-500-MFMF-5 | 5 | 1/2 | Male JIC 37 degree | 3/4 - 16 UNF | Male JIC 37 degree | 3/4 - 16 UNF |
| CV-500-MOMF-5 | 5 | 1/2 | Male SAE O-ring Straight Thread | 3/4 - 16 UNF | Male JIC 37 degree | 3/4 - 16 UNF |
| CV-750-MFMF-5 | 5 | 3/4 | Male JIC 37 degree | 1 1/16 - 12 UN | Male JIC 37 degree | 1 1/16 - 12 UN |
| CV-750-MOMS-5 | 5 | 3/4 | Male SAE O-ring Straight Thread | 1 1/16 - 12 UN | Male Seal-Lok | 1 3/16 - 12 UN |
| CV-750-MOMS-65 | 65 | 3/4 | Male SAE O-ring Straight Thread | 1 1/16 - 12 UN | Male Seal-Lok | 1 3/16 - 12 UN |
| CV-750-MPMF-5 | 5 | 3/4 | Male NPTF | 3/4 - 14 NPTF | Male JIC 37 degree | 1 1/16 - 12 UN |
| CV-1000-MFMF-5 | 5 | 1 | Male JIC 37 degree | 1 5/16 - 12 UN | Male JIC 37 degree | 1 5/16 - 12 UN |
| CV-1000-MFMF-65 | 65 | 1 | Male JIC 37 degree | 1 5/16 - 12 UN | Male JIC 37 degree | 1 5/16 - 12 UN |
| CV-1000-MSMS-5 | 5 | 1 | Male Seal-Lok | 1 7/16 - 12 UN | Male Seal-Lok | 1 7/16 - 12 UN |
