Air to Open Valves
1) ZMQ / ZSQ series pneumatic shut-off valve is an actuating unit in the pneumatic unit portfolio instruments. It can auto control or adjust the medium's pressure, flow, temperature and level parameters by the control system. 2) This series has a simple structure, light weight, easy to use...
ZMQ / ZSQ Pneumatic unbalanced shut-off control valve
Pneumatic unbalanced shut-off control valve adopts top guided pressure unbalanced plug. It is suitable for applications with low differential pressure. The plug and seat surfaces are subjected to hard alloy overlay welding to ensure long-time stable running of the valve. For shut-off applications of media of high temperature and service conditions with high differential pressure, we have specially designed the double-plug pressure relief type shut-off valve. The trim of this kind of valve adopts double-plug structure with flow to close design. When opening the valve, first open the small plug, and the starting force is relatively low because the area of thrust surface of the small plug is small. After the small plug is opened, the pressure after the valve is released and the differential pressure acting on the large plug is greatly reduced. The large plug can be opened with a relatively low actuator force. The trim of this kind of structure can meet the need for shut-of applications in service conditions with high differential pressure.
20-100, 40-200, 80-240, 20-60, 60-100
Power Source (MPa)
Linear or Equal Percentage
Working Temp. (ºC)
-20-200, -40-250, -60-450
-60-100, -100 - -200, -200 --250
Hoyee located in HangZhou City Where take one hour by fast train from ShangHai China.Only take 1 hour by car from HangZhou train station or HangZhou air port.Hoyee was founded in 2005year,during past more than 10years,the annual capacity from 1 million U.S.D upto more than 10 million U.S.D now. and more than 150 staff working at our factory. We have two senior engineer and strong technical engineer team to support innovation, development research and after sales.
Packing Details: Wooden box and plywood case, standard export packing.
In addition that we can design and pack as your request.
Delivery Details : Shipped in 5-15 days after payment.
Q: What's your payment terms?
A: Usually we accept T/T ,Western Union or PayPal.
Q: What's your shipping item?
A: We ship items via EMS, DHL, UPS, TNT, China Post or Hong Kong Post.
Q: What's your delivery time?
A. 1.The stock samples can be sent to you within 3-5days by international express after received
2.The batch order can be shipped to you in about 10-15days after order confirmation (by air or by sea)
Q: What's your main products of your company?
A: We specialized in all kinds of high performance control valve, for over 10 years with excellent quality and competitive
Q:How can I choose the most suitable valve?
A: Please tell me your detailed working condition,DN,Mpa,Working temperature…ect
Q: How long is your pump lifetime?
A: Valve warranty is 12 months
1. We offer 12 months limited Warranty of Manufacturer for defective items (excluding items damaged and /or misused after receipt).
2. If you have any problems with the item received, please let us know within 7 days after received. Please contact us before send items back! If problem really exists, a replacement or a refund is available after we receive the items in goods condition.