A diaphragm valve consists of body, diaphragm and bonnet and is operated either with handwheel or with pneumatic or electric actuator.
Diaphragm valves are good for controlling flow, normally they are used for compressed air, seawater or freshwater and in a great number of other applications. Full flow also means less wear and tear compared to other valves, giving longer lifetime and reduced need for maintenance.
Details:
1.. Working principle:
Diaghrahm valves is closed in a normal state, the diaghragm close to the body cavity, closed pipe flow leads to the path, Whenb the diaghragm valve needs to clean ti western open, just need to manuallt roteting the hand wheek or drive cotronl acuator to stimulate the stem upward movement if the spherical diaghragm followed up bending.
So that the valve to form aconduction state, shell realization cleaning and the purpose to open. The diaghragm to the lower part of the body cavity and the upper valve cover cavity seperated from the stem at the upper part of the diaghragm, spool and other parts from the corrosive media, eliminating the need to packing seal structure, and will not produce the media leak. Optimized body design, so that the cleaning solution completely excretion. There is no retention.
2.. Material:
Steel parts: Stainless steel 304, stainless steel 316L.
Sealing: EPDM+RTFE this sealing adopt the material imported from other countries.And we can bolted the sealing perfectly the whole set sealing. And the part of the sealing touch with the medium is made of PTFE, has good performance in cold temperature (-25Degree) and in hot temperature. And can bear variety of chemical agents as well as good abrasion performance.
Images For Diaphragm Valve:
About Us:
FAQ:
1.Are you a trader or manufactor?
We are a manufactor (Forging workshop and CNC machining workshop )
2.Can your products reach to FDA , CE and 3A requirements?
Yes, all of our material can reach to the requirements of FDA, ISO and 3A Certificate).
3.We can supply:
Sanitary Butterfly Valve, Sanitary Check Valve and Diaphragm Valves, as well as Various Tank Accessories: Sight Glass, Strainers/Filter, Cleaning Ball, And other Pipe Fittings, (Pipe Unions: SMS, DIN, IDF, RJT, 3A,DS; Fittings: Ferrule,Elbow, Tee, Reducer and all other Non-standrad fittings), each products are tested well by our strictly Quality Control System, and we also have excellent service to support you and promote your business.
4.Lead Time:
For large quantity, as usual, it can be sent out within 20-40 days.
Small parcel will be dispatched by DHL, FedEx, UPS OR TNT Courier.
Big cargo will be delivered by Air freight or By Sea.
5.Our Service:
About payment:
Payment methods: L/C, T/ T, Western Union
6.About samples:
We can provide samples production and service. Usually 2 to 5 days, the sample can be sent to your hands. We will choose the shipping way as you required: By sea, by air or by express. Any question about samples, please contact us.
7.For OEM products:
We will finish the production within 20-40 days after payment has been confirmed.
About delivery and shipping:
We will choose the delivery way as you required: By sea, by air, by express ect. Save your cost is our mission.
8.Lifetime service:
Any problem happened to our product, we will do our best to help client to solve it, spare parts will be half price in lifetime.
9.Problem solve:
If you can't solve the problem in your local, please delivery the product to us, we will repair it and then back to you.
10.Quality control:
All the products are calibrated with real working condition, and tested before shipping as qualified product.
11.Purpose:Attitude is everything.
Contact: Miss Cherry
Audited Supplier 
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