Hydnet - the specialist in intelligent hydraulic systems
Göteborg: +46 31 499 490
|
Stockholm: +46 8 59 470 470
|
E-mail: [email protected]
0
Quotation Request
Contact
MWGG

Load holding valve from Sun Hydraulics.

Description

Vented, load reactive load control valves with pilot assist combine two valves; a check valve and a relief valve. The check valve allows free flow from the directional valve (port 2) to the load (port 1) while a direct-acting, pilot-assisted relief valve controls flow from port 1 to port 2. Pilot assist at port 3 lowers the effective setting of the relief valve at a rate determined by the pilot ratio. Backpressure at port 2 does not affect the valve setting because the spring chamber references the vent (port 4).

Read more ▼
  • Set at least 1.3 times the maximum load induced pressure (1.5 times when the setting is less than 2000 psi or 140 bar).
  • The maximum recommended load pressure for the H range is 3080 psi (212 bar).
  • The maximum recommended load pressure for the J range is 3850 psi (265 bar).
  • Turn adjustment clockwise to decrease setting and release load.
  • Full clockwise setting is 1000 psi (70 bar) for the H range and 2000 psi (140 bar) for the J range.
  • These valves are capable of modulating over a broader range of flows than the pure poppet designs. The longer stroke allows us to incorporate a uni-directional damping device that smooths the opening and lets the valve close quickly.
  • This valve is functionally a 4-port counterbalance valve. It seats as a poppet valve and modulates as a spool valve, offering the best of both valve types.
  • All 4-port counterbalance, load control, and pilot-to-open check cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
  • Sun load control and counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit.
  • This valve has positive seals between all ports.
  • This valve has full relief capacity.
  • 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.

Technical Data

Note: Data may vary by configuration. See CONFIGURATION section.

Cavity T-23A
Series 3
Capacity 60 gpm
Capacity (metric) 240 L/min.
Maximum Operating Pressure 5000 psi
Maximum Operating Pressure (metric) 350 bar
Pilot Ratio 4.5:1
Maximum Recommended Load Pressure See Technical Features
Factory Pressure Settings Established at 2 in³/min.
Factory Pressure Settings Established at (metric) 30 cc/min.
Maximum Valve Leakage at Reseat 5 drops/min.
Maximum Valve Leakage at Reseat (metric) 0,3 cc/min.
Check Cracking Pressure 25 psi
Check Cracking Pressure (metric) 1,7 bar
Adjustment – No. of CCW Turns from Min. to Max. Setting 9
Reseat ≥77% of setting
Valve Hex Size 1 1/4 in.
Valve Hex Size (metric) 31,8 mm
Valve Installation Torque 150 – 160 lbf ft
Valve Installation Torque (metric) 203 – 217 Nm
Seal kit – Cartridge Viton: 990023006
Model Weight 2.08 lb.
Model Weight (metric) 0.94 kg.

Configuration Options

Control

L Standard Screw Adjustment

Functional Setting Range

H 1000 – 4000 psi (70 – 280 bar), 3000 psi (210 bar) Standard Setting
J 2000 – 5000 psi (140 – 350 bar), 3000 psi (210 bar) Standard Setting

Seal Material

N Buna-N
V Viton
Cavity: T-23A
Nominal Capacity: 60 gpm ( 240 lpm)
Pilot Ratio: 4,5:1
Downloads
PDFSTP
Possible variants

MWGGLHN, MWGG-LHN, MWGGLJN, MWGG-LJN, MWGGLJV, MWGG-LJV, MWGGXKN, MWGG-XKN, MWGGXKV, MWGG-XKV, MWGGXMV, MWGG-XMV

Hydnet
EA Rosengrens gata 29
421 32 Västra Frölunda

+46 31 - 499 490
[email protected]

Products

Pages

Links

Partners