Huade is a Chinese well-known state-owned enterprise specializing in hydraulic system. Huade had two long-term cooperation experiences with Rexroth from 1979. Huade® WMR valve is an affordable alternative to Rexroth's same series. This directional valve enjoys free maintenance service within the one-year warranty period. Huade puts great stress on the quality. The factory has passed ISO9001, ISO14001, and OH SAS18001. Huade® hydraulic valves are widely used in engineering and construction machinery, metallurgy, machine tools, environmental protection, shipbuilding, aerospace, rail transit, petroleum and petrochemical, military industry and other fields. It is a reliable brand in China.
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Size |
6 |
10 |
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Maximum |
port A. B. P(㎫) |
to 31.5 |
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port T (㎫) |
to 6 |
to 16 |
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In symbols A and B,the T port must be used as a drain connection |
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Maximum flow (L/min) |
up to 60 |
up to 120 |
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Flow cross section |
for symbol Q, 6% of nominal cross section |
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for symbol W, 3% of nominal cross section |
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Pressure fluid |
Mineral oils(for NBR seal) or |
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Pressure fluid temperature range（℃） |
-30～+80 |
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Viscosity range (mm2/s) |
2.8 to 500 |
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Weight (kg) |
approx.1.4 |
approx.3.3 |
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Operating force at roller lever |
at zero tank pressure |
100 to 121 |
two positions valve |
70 to 140 |
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(N) |
at a pressure |
184 to 205 |
three positions valve |
70 to 175 |
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Features:
▶ Direct operated directional spool valve with adjustable roller operation
▶ Roller lever assembly may be stepped in 90°
▶ Radial forces absorb reliably (up to 30°)
▶ 19 kinds standard spool function
Directional valves type WMR are roller operated directional valves.
They basically consist of the housing (1), the roller lever (2), the control spool (3) and the return
spring (4).
A plug-in throttle is required if flow greater than the permitted value may occur while the valve spool is being from one position to another. The plug-in orifice is fitted in the P port of the directional valve.
Cutaway view of WMR 6
Cartridge throttle
Address
No. 27, Yangsha Road, Huilong Town, Nantong City, Jiangsu Province, China
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