Loading...
Loading...

Model

LHHAXFN

Control
Differential Pressure
Seal Material

Bypass/restrictive, priority modulating element

Cavity: T-33A | Capacity:

Loading...

Model

LHHAXFN

Control
Differential Pressure
Seal Material

Technical specifications

Bypass/restrictive modulating elements, when combined with an external orifice, create a bypass/restrictive flow control. Input flow (port 3) is directed to the priority or control flow at port 2. Once the priority requirements are met, excess flow is bypassed out port 4. The after-orifice signal is connected to port 1. The before-orifice design allows both pressure and flow to be controlled on the priority side of the circuit regardless of pressure in the bypass circuit. These valves work equally well in either closed or open center systems. Their main use is to allow after-market accessories to be driven off the host machine's hydraulic system without adding an additional pump.

  • Bypass flow is not available until priority flow requirements are satisfied.
  • Priority flow can be turned on or off with a pilot-sized, three-way solenoid valve on port 1.
  • Bypass pressure at port 4 can be higher than pressure at control port 2.
  • Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

Model CAD Files

Click the link of the file format you want to download.

Symbol CAD Files

Click the link of the file format you want to download.

  • What parts of the Sun cartridge valve are field serviceable?
  • Why do you call it a hammer valve?
  • How big is a drop of hydraulic oil?  
  • The LH*A looks like just the valve I need to pressure compensate my load-sense whatever. Will it work?

Keep up with Sun