Throttle Check Valve DRV

Valves type DRV is the throttle/check valve. This valve has a simple structure and is widely used. Thanks to two long-term collaborations with Rexroth, Huade® hydraulic throttle valves can match the quality of similar products from international brands. They are an affordable alternative to those first-tier brands. Huade® is a well-known trademark in China.

Product parameter of Throttle Check Valve DRV

Material	Steel	Brass	Stainless steel
Max. permissible operating pressure (MPa)	to 35	to 15	to 35
Cracking pressure of check valve (type DRV)	0.05 (cracking pressures available if required)
Fluid	Mineral oil or Phosphate ester
Fluid temperature range(℃)	-30 to+80
Viscosity range(mm ²/s)	10 to 800
Installation position	optional

Product Feature And Application of Throttle Check Valve DRV

Features:

▶ Threaded connection

▶ Subplate mounting

Application:

The throttle/check valves type DRV serve to set an exact oil flow in one direction, and to allow free return flow in the opposite direction.

Section and symbol of Throttle Check Valve DRV

Throttle/check valve DRV consist basically of a housing (1), adjustment knob (2) with locking device (3). By turning the adjustment knob (2) to the left, the spindle (4) with throttle pin (5) increases the flow section (6) to maximum. By turning the adjustment knob (2) to the right, the spindle (4)with throttle pin (5) decreases the flow section (6) until fully closed without leakage. For repeat setting, a colour scale (7) is provided on the top end of the spindle (4).The area of coloured triangle (8) showing indicates how far the valve is open (the larger the coloured triangle the greater the opening). The flow setting is locked by means of locking device (3).

Structure of Throttle Check Valve DRV

Symbol of Throttle Check Valve DRV