Product Details

Product Description

D680 series servo proportional valve is used in two-way, three-way, four-way and five way throttle type flow control valve. They are suitable for electro-hydraulic position, velocity, pressure or force control systems and other systems requiring high dynamic response. D680 series integrated circuit board is also an innovation, it uses SMD technology and 24VDC power supply. - direct acting pilot valves do not require pilot stage leakage flow. This can achieve a large amount of energy saving, especially for systems with multiple valves. - the dynamic performance of direct drive valve is not affected by the change of working pressure. - reliable operation. The excellent pressure gain of the pilot valve with valve core and valve sleeve provides high valve core driving power for the long stroke main valve core. This ensures that the position control of the main valve core can be strengthened even under the strong fluid power and the medium containing impurities. - excellent dynamic performance based on high natural frequency can achieve high position ring gain of main valve core, ensuring excellent static and dynamic response of main valve. - improve dynamic response - small pilot oil flow can also drive the main valve core to move rapidly - fail safe type a two position four-way solenoid valve is used to control the pilot flow short circuit, which can make the valve core in the limited safety position

Technical Parameters

Working pressure range
Port P, A, B			≤350 bar
Valve port T			Refer to the specific data of each series of valves
Pilot stage pressure			At least 10 bar higher than t or Y port pressure
Pilot stage pressure				350bar maximum
temperature range
ambient temperature			—20℃ to +60℃
ambient temperature				—4℉ to +140℃
Oil temperature			—20℃ to +80℃
Oil temperature				—4℉ to +170℉
Sealing ring material			NBR, Viton, and other sealing materials can be provided according to the user's requirements
Working medium			Petroleum base
				Hydraulic oil
				(DIN 51524 parts 1 to 3) and ISO 11158, which can be selected according to the user's requirements
viscosity	Recommended values	15至45mm2/s
viscosity		Allowable value	15至400mm2/s

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Packing&Shipping

In order to ensure that the product is not damaged during transportation, we will choose to use high-hardness cardboard boxes or wooden boxes to package the product according to the volume of the product, and adopt protective measures such as foamanti-collision and wooden frame fixing to ensure the safe and non-destructive delivery of the goods to the greatest extent.

Company Introduction

Service providers in the industrial sector

Contacts: Marie Cheung

Telephone: +8613729884993 (Wechat Synchronization)

E-mail: marketing@szouhang.com

Zip:518125
Address:Buildings 32,Third industrial zone, houting,Shajing,Bao'an District,

Shenzhen, China (Mainland)

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