Relief assembly with reverse flow check


Function for YCFL: Out of
Out of "A"
Technical Features [ + ]

This sandwich valve assembly relieves from pressure out of port A when the incoming pressure at port A exceeds the setting of the valve. It also incorporates a reverse flow check valve.

Technical Data [ + ]
Body Type SandwichSandwich
Capacity 30 gpm120 L/min.
Body Features Out of AOut of A
Stack Height 2.49 in.63 mm
Seal Plate Included (see notes) NoNo
Mounting Hole Diameter .28 in.7,1 mm
Mounting Hole Depth ThroughThrough
Mounting Hole Quantity 44
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 [ + ]
  • Stack height value in technical data table includes seal retainer plate.
  • This installation requires a seal retainer plate and seal kit which are purchased separately. See "Related Accessories" section.
  • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
  • 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 [ + ]