Model: YRFL
Relief assembly, with reverse flow check
Capacity:
Model
YRFLLANCN
Control
Adjustment Range
Seal Material
Range Letter(s) of Subordinate Cartridge
Port and Material Designation
Function
![Function image](https://cmsimages.sunhydraulics.com/sym-yrfl.png)
Technical specifications
Modifiers
Ports
- D, D/SPorts 1 & 2: 3/4" NPTF; Port 3: 1/4" NPTF; Gage Port: 1/4" NPTF;
- E, E/SPorts 1 & 2: 1" NPTF; Port 3: 1/4" NPTF; Gage Port: 1/4" NPTF;
- F, F/SPorts 1 & 2: 1 1/4" NPTF; Port 3: 1/4" NPTF; Gage Port: 1/4" NPTF;
- L, L/SPorts 1 & 2: SAE 12; Port 3: SAE 6; Gage Port: 1/4" NPTF;
- M, M/SPorts 1 & 2: SAE 16; Port 3: SAE 6; Gage Port: 1/4" NPTF;
- N, N/SPorts 1 & 2: SAE 20; Port 3: SAE 6; Gage Port: 1/4" NPTF;
- W, W/SPorts 1 & 2: 3/4" BSPP; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
- X, X/SPorts 1 & 2: 1" BSPP; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
- Y, Y/SPorts 1 & 2: 1 1/4" BSPP; Port 3: 1/4" BSPP; Gage Port: 1/4" BSPP;
This assembly consists of a 30 PSI check and a pilot-operated, balanced-piston relief cartridge which is a normally closed pressure regulating valve. When the pressure at the inlet (P port) reaches the valve setting, the valve starts to open to tank (T port), throttling flow to regulate the pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast.
- Capacity60 gpm
Why doesn't Sun anodize their aluminum bodies?
How big is a drop of hydraulic oil?
Direct acting or pilot operated - what do I use?
- Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
- For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
Highlights
Technical Tips
Technical Information
- PartDescriptionQuantity