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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.
CPIFF Series Hydraulic Check Valves (5,000 psi) are, in line, soft seat, zero leakage poppet check valves with compact one piece construction. Standard crack pressures are 5, 15, 25, and 65 psi. These hydraulic check valves are available in a wide range of sizes up to 1", with female fitting ends and flow capacities up to 30 gpm.
CPIFF 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 one way only. When reverse flow attempts to enter though the outlet the poppet closes and flow through the valve is stopped.
Soft seat check valves have an O-ring or similar elastomeric seal between the poppet and body for improved leak resistance. The soft seat design is most compatible with ""clean” systems and is not indented for use in systems that have high surge flow. The seal material dictates the temperature range of the valve.
Technical Characteristics:
• Sizes: 1/4” to 1”
• Materials: Steel
• Seal Material: Fluorocarbon; Nitrile
• Standard Crack Pressures (psi): 5, 15, 25, and 65
• Port Ends: Female NPSF, Female SAE
• 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
• Soft seated valve creates a leak free seal
• Fluorocarbon seal is standard
• 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
| Literature and Reference Materials |
|---|
| Catalog 3800 Quick Coupling Products |
| Fluid Compatibility Chart |
| Port End Assembly Guide |
| QCD Check Valve Product Guide |
| Compliance, Certifications & Safety |
|---|
| Safety Guide: Quick Couplings and Related Accessories |
| Product Demos & Tutorials |
|---|
| How to Install and Operate Check Valves |
| Productos | Tamaño del cuerpo (pulg) | Presión de fisuración (psi) | Material de la junta | Tamaño del puerto de entrada (pulg) | Tipo de conexión del puerto de entrada | Tamaño del puerto de salida (pulg) | Tipo de conexión del puerto de salida |
|---|---|---|---|---|---|---|---|
| CPIFF-2P-15 | 1/4 | 15 | Fluorocarbon | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-2P-25 | 1/4 | 25 | Fluorocarbon | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-2P-25A | 1/4 | 25 | Nitrile | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-2P-5 | 1/4 | 5 | Fluorocarbon | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-2P-5A | 1/4 | 5 | Nitrile | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-2P-65 | 1/4 | 65 | Fluorocarbon | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-2P-65A | 1/4 | 65 | Nitrile | 1/4 - 18 NPSF | Female NPSF | 1/4 - 18 NPSF | Female NPSF |
| CPIFF-3P-15A | 3/8 | 15 | Nitrile | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-3P-25 | 3/8 | 25 | Fluorocarbon | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-3P-25A | 3/8 | 25 | Nitrile | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-3P-5 | 3/8 | 5 | Fluorocarbon | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-3P-5A | 3/8 | 5 | Nitrile | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-3P-65 | 3/8 | 65 | Fluorocarbon | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-3P-65A | 3/8 | 65 | Nitrile | 3/8 - 18 NPSF | Female NPSF | 3/8 - 18 NPSF | Female NPSF |
| CPIFF-4P-15 | 1/2 | 15 | Fluorocarbon | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-15A | 1/2 | 15 | Nitrile | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-25 | 1/2 | 25 | Fluorocarbon | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-25A | 1/2 | 25 | Nitrile | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-5 | 1/2 | 5 | Fluorocarbon | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-5A | 1/2 | 5 | Nitrile | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-65 | 1/2 | 65 | Fluorocarbon | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-4P-65A | 1/2 | 65 | Nitrile | 1/2 - 14 NPSF | Female NPSF | 1/2 - 14 NPSF | Female NPSF |
| CPIFF-6P-15 | 3/4 | 15 | Fluorocarbon | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-12S-5 | 3/4 | 5 | Fluorocarbon | 1 1/16 - 12 UN | Female SAE Straight Thread | 1 1/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-12S-5A | 3/4 | 5 | Nitrile | 1 1/16 - 12 UN | Female SAE Straight Thread | 1 1/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-12S-65 | 3/4 | 65 | Fluorocarbon | 1 1/16 - 12 UN | Female SAE Straight Thread | 1 1/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-12S-65A | 3/4 | 65 | Nitrile | 1 1/16 - 12 UN | Female SAE Straight Thread | 1 1/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-15 | 1 | 15 | Fluorocarbon | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-15A | 1 | 15 | Nitrile | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-25 | 1 | 25 | Fluorocarbon | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-5 | 1 | 5 | Fluorocarbon | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-5A | 1 | 5 | Nitrile | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-65 | 1 | 65 | Fluorocarbon | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-16S-65A | 1 | 65 | Nitrile | 1 5/16 - 12 UN | Female SAE Straight Thread | 1 5/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-6P-15A | 3/4 | 15 | Nitrile | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-6P-25 | 3/4 | 25 | Fluorocarbon | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-6P-25A | 3/4 | 25 | Nitrile | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-6P-5 | 3/4 | 5 | Fluorocarbon | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-6P-5A | 3/4 | 5 | Nitrile | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-6P-65 | 3/4 | 65 | Fluorocarbon | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-6P-65A | 3/4 | 65 | Nitrile | 3/4 - 14 NPSF | Female NPSF | 3/4 - 14 NPSF | Female NPSF |
| CPIFF-8P-15 | 1 | 15 | Fluorocarbon | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-15A | 1 | 15 | Nitrile | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-25 | 1 | 25 | Fluorocarbon | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-25A | 1 | 25 | Nitrile | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-5 | 1 | 5 | Fluorocarbon | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-5A | 1 | 5 | Nitrile | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-65 | 1 | 65 | Fluorocarbon | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8P-65A | 1 | 65 | Nitrile | 1 - 11 1/2 NPSF | Female NPSF | 1 - 11 1/2 NPSF | Female NPSF |
| CPIFF-8S-15 | 1/2 | 15 | Fluorocarbon | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-8S-25 | 1/2 | 25 | Fluorocarbon | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-8S-25A | 1/2 | 25 | Nitrile | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-8S-5 | 1/2 | 5 | Fluorocarbon | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-8S-5A | 1/2 | 5 | Nitrile | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-8S-65 | 1/2 | 65 | Fluorocarbon | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-8S-65A | 1/2 | 65 | Nitrile | 3/4 - 16 UNF | Female SAE Straight Thread | 3/4 - 16 UNF | Female SAE Straight Thread |
| CPIFF-12S-15 | 3/4 | 15 | Fluorocarbon | 1 1/16 - 12 UN | Female SAE Straight Thread | 1 1/16 - 12 UN | Female SAE Straight Thread |
| CPIFF-12S-25 | 3/4 | 25 | Fluorocarbon | 1 1/16 - 12 UN | Female SAE Straight Thread | 1 1/16 - 12 UN | Female SAE Straight Thread |
