Product Description
Dual Check Valve Features:1. Small in size, light in weight, compact in structure, easy in fix.
2. Two torsional springs are installed on each of dual valve plates, result in close the plates quickly and automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effectively.
4. Safe and reliable in operation, high capability of resisting interference.
5. It is easy to install on pipeline which is laid horizontally or vertically.
Note: The stem of the Valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeline. For vertical installation the direction of flow should be downward.
Product Model | DH77X/H76W-16 |
Nominal Diameter | DN40~700 |
Nominal Pressure | PN1.0~1.6MPa |
Suitable Medium | Water,oil,gas |
Suitable Temperature | -23°C~121°C |
Standard Flange connection | GB2555-81/BS5163/DIN3352/ASTM |
Standard length of the structure | CVA250-88 |
Pressure test standard | GB4981-85 |
Production Details
The opening and closing parts are opened or closed by the force of the medium flow to prevent the valve from flowing back to the valve. Check valves are automatic valves, mainly used on pipes with one-way flow of media, allowing only the media to flow in one direction to prevent accidents.
Inspection Pictures
Before packaging, products will be tested to ensure that each valve is qualified.
Production Process
CASTING→PROCESSING PERFORATION→BUFFING→VALVE SHAFT GRINDING→VALVE VARNISH→ASSEMBLING→PUNCH→TEAST PRESSURE→QUALITY INSPECTION
Our Advantages
Beoncy pre-sales Services:
To acheieve the top combination of technology and sales services,so that users have a service experience in every purchase.
A.Communicate with customers about product technologu before purchasing and give suggetsions.
B.Provide professional drawings to avoid errors.
C.Design and produce products reasonably according to customer requirements.
Beoncy on-sale Services:
A.Compare price,quality and service to achieve the best cost performance.
B.Strict contract terms and careful attention to every small requirement of customers.
C.Keep communication with customers in the production process.The model,caliber,quantity,standard,color,valve label,casting and so on need to be confirmed again.
Beoncy After-sale Services:
A.Provide product certificates,inspection certificates,installation indtructions etc.,according to the contract.
B.The company will deal with the non-conformity of contract resuirements within 2 hours.
C.The warranty period for all valves is 12-18months from the date of acceptance.
D.If product quality problems occur under correct installation and use,our company will be responsible to the end.
E.Provide spare parts,debugging and maintenance services.
F.Any after-sales feedback will be resolved within 24 hours.
Packaging and Shipment
Cast Iron Rubber Seat Butterfly Swing Check Valve
(1) Each set into PE bag
(2)Several sets into Carton
(3) Cartons into Standard Export Plywood case
Our Teams and Customers
Tianjin Beoncy Co.,Ltd. is located in Tianjin Jinnan District.The Company's operations in 1997,and now has developed into a private enterprise with a certain scale of production,the company's existing plant more than 6000 square meters, more than 100 lathes, part of the equipment for the past few years, a new preci- sion equipment purchased.Company is a research and production of transport and sales of businesses, and has passed ISO9001: 2000 international quality system.The main products are series of more than 40 folders butterfly hard seal butterfly valves,etc., more than 500 kinds of specifications.
FAQ
What is the MOQ?
1piece
Can I get a lower price if i order large quantities?
Yes,cheaper prices with more bigger size order
Can I have my own customized product?
Of course.We provide OEM services.The products' material ,dimensions ,color,etc. will according to requirements.
How long is the delivery time?
3-5 days if the goods are in stock. or it is 15-30 days if the goods are not in stock,according to quantity.
How about the quality gurantee period?
18 Months
How can you guarantee the production quality?
We have CE,API,ISO,TS certificate.In chinese market,we are the leading valve suppler with 43 years
experience.and we are Valve Council member. We have strictly quality control system in our
production process 5 times inspection for each finished product before package.