Model: YVHB
Vented relief assembly with reverse flow check
Capacity:
Model
YVHBLANCN
Control
Adjustment Range
Seal Material
Range Letter(s) of Subordinate Cartridge
Port and Material Designation
Function
![Function image](https://cmsimages.sunhydraulics.com/sym-yvhb.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;
- P, P/SPorts 1 & 2: 1" Code 61; Port 3: SAE 6; Port G: 1/4" NPTF; Mtg Holes: .375 - 16UNC x .62 DP;
- Q, Q/SPorts 1 & 2: 1 1/4" Code 61 ; Port 3: SAE 6; Gage Port: 1/4" NPTF; Mtg Holes: .375 - 16UNC x .62 DP;
- 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 provides 2 functions. It relieves pressure from (port 1) to tank (port 2) when pressure at port 1 exceeds the setting of the valve. The external port 3 allows the valve to be vented by an external 2-way, 2-postion valve allowing the valve to drop the pressure setting to a minimal level. The external valve could be either normally open meaning the pressure is at a low level until the valve is closed or normally closed meaning the pressure is at high level until the valve is open. The check valve allows reverse flow from port 2 to port 1.
- Not suitable for use in load holding applications due to spool leakage.
- Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
- Body TypeLine mount
- Capacity60 gpm
- Mounting Hole Quantity2
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