Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Jiangsu Huafilter Hydraulic Industry Co., Ltd.
Products
Directional Control Valve WH
  • Directional Control Valve WHDirectional Control Valve WH

Directional Control Valve WH

Huafilter’s main business is supplying Huade® brand directional control valves and repairing hydraulic system for several years. We started overseas business from 2023 due to becoming the international distributor authorized by Huade Hydraulic. Hydraulic Directional Control Valve WH is wildly sold in China and in foreign countries with high quality and lower price. There is a one-year warranty for every directional control valve. Within the period, it is free to repair it. Huade® is an outstanding brand in Chinese hydraulic industry. The quality of this fluid operated valve can completely conforms to customers requirements. We have experienced engineers who can provide timely technical support. Contact us for cost-effective, reliable hydraulic products and top-notch services!

As a leading manufacturer in China's hydraulic industry, Huade Hydraulic has had two long-term cooperation experiences with Rexroth. Huade® directional control valve type WH is more advanced in technology and more durable than the similar products in this line. Huade operates more than 750 pieces advanced production equipment imported from all over the world to ensure the high quality of hydraulic products. It is more advanced in technology and more durable than the similar products in this line. The factory comes up to the international standards,namely, ISO9001, ISO14001 and OH SAS18001. The series of directional valves produced by Huade Hydraulic are widely used in marine hydraulic system. Huade owns a huge customer group in the marine industry.

Product parameter of Directional Control Valve WH

Size

6

10

Max.operating pressure

Ports A, B,P(MPa)

to 31.5

Port T (MPa)

to 16

With symbols A and B port T must be used as a leakage port
if the operating pressure is greater than 16.0 MPa

Flow max (L/min)

up to 60

up to 120

Operating to flow
(Spool position 0)

Symbol Q6%of nominal cross-sectional area

Symbol W, 3% of nominal cross-sectional area

Fluid

Mineral oil or phosphate ester

Pressure fluid temperature range (℃)

-20~+80

Viscosity range                              (mm2/s)

2.8~500

Weight(kg)

1 operating cylinder

approx.2

approx.3.5

2 operating cylinder

approx.2.2

approx.4.5

Plot pressure(MPa)

min

0.6 to 1> tank pressure

0.5

max

20

6


Product Feature And Application of Directional Control Valve WH

Features:

▶ Direct operated directional spool valve

▶ Two position valve with stroke limit optional

▶ Subplate mounting

▶ Mounting pattern to Din 24 340 form A, ISO 4401 and CETOP - RP 121H


Application:

WH valves are hydraulic operated directional spool valves.They are used for the control of stop, start and direction of a flow

Functions,Section of Directional Control Valve WH

The directional valves mainly consist of housing (1), one or two operating elements (2) (hydraulically, pneumatically operating cylinder), the control spool (3), as well as one or two return springs (4).

At rest the control spool (3) is kept in the centre or starting position by the return springs (3) (except impulse valve).

The control spool (3) is pushed into the required switching position by the operating elements.

With detent, type ..OF/.

Hydraulically or pneumatically operated directional valves are also available as 2-position valves with detent (5). When the operating elements with detent are used every switching position may be locked.


Without return spring, without detent, type..O/.

When using operating elements without return spring and without detent, there is no defined switching position at rest.


Structure diagram



Cartridge throttle

The use of a cartridge throttle is then necessary when during the switching procedures in the given operating conditions flows occur which exceed the performance limits of the valve.

It is plugged into the P-channel of the directional valve.



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