Solenoid operated ventable relief assembly

Function

Function for XREA: Normally Open
Normally Open
Port Designators [ + ]
Modifiers Ports
A, A/S Ports 1 & 2: 1/4" NPTF; Port G: 1/4" NPTF;
B, B/S Ports 1 & 2: 3/8" NPTF; Port G: 1/4" NPTF;
C, C/S Ports 1 & 2: 1/2" NPTF; Port G: 1/4" NPTF;
D, D/S Ports 1 & 2: 3/4" NPTF; Port G: 1/4" NPTF;
I, I/S Ports 1 & 2: SAE 6; Port G: 1/4" NPTF;
J, J/S Ports 1 & 2: SAE 8; Port G: 1/4" NPTF;
K, K/S Ports 1 & 2: SAE 10; Port G: 1/4" NPTF;
L, L/S Ports 1 & 2: SAE 12; Port D: 1/4" NPTF;
T, T/S Ports 1 & 2: 1/4" BSPP; Port G: 1/4" BSPP;
U, U/S Ports 1 & 2: 3/8" BSPP; Port G: 1/4" BSPP;
V, V/S Ports 1 & 2: 1/2" BSPP; Port G: 1/4" BSPP;
W, W/S Ports 1 & 2: 3/4" BSPP; Port G: 1/4" BSPP;
Technical Features [ + ]

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 solenoid control allows the valve to be vented, dropping the pressure to a minimal level. This assembly is either normally open meaning the pressure is at a low level until the solenoid is energized or normally closed meaning the pressure is at high level until the solenoid is energized.

  • 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.
Technical Data [ + ]
Body Type Line mountLine mount
Capacity 30 gpm120 L/min.
Mounting Hole Thread .375-16 UNC - 2B in..375-16 UNC - 2B in.
Mounting Hole Depth .62 in.15,7 mm
Mounting Hole Quantity 11
FAQs [ + ]

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

Direct-acting valves are used to prevent over pressure, and pilot-operated valves are used to regulate pressure. If you are unsure, use a direct-acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot-operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.

Notes [ + ]
  • 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.
Additional Resources [ + ]
Coil Information [ + ]

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