Dual plate check valve has retainer and retainer-less type design. Dual plate check valves have the advantage of zero leakage toward outside, cost saving. It can be installed in any line orientation, superior seal performance. Valves are designed in accordance to API 594 and have dual plate or single plate design and pin can be retainer-less type.
Small in size, light in weight, compact in structure, easy in maintenance.
Two torsion springs are used excreting on each of the pair valve plates. Which close the plates quickly and automatically.
The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
This valve is short in length, so that it is rigid and easy to mount.
It is easy to install on pipeline which is laid horizontally or vertically.
This valve is tightly sealed without leakage under the pressure water test.
Safe and reliable in operation, high interference-resistance.
Size: 2" to 60",DN50-DN1500
Class: 150LB to 2500LB,PN16-PN420
Type: Double plate or single plate, wafer type, lugged type, flanged type
Material: B148 C95800, WCB, WCC, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CN7M, LCB, LCC, DUPLEX SS, C95800,C95500,MONEL, ALLOY 20 etc
One piece body
Butterfly swing type
Dual plate disc ,
Renewable split disc
Horizontal or vertical service
Lug Wafer ends
Available with flange ends.
Equipped with a professional factory, Naibang Valve is a professional manufacturer and supplier of lug type wafer double door check valve in China. If you want to buy quality product of various beautiful bags, you can get it at a cheap price from us.
Q.Can I request to change the form of packaging and transportation?
A: Yes, we can change the form of the packaging and transportation as per your request, but you have to bear their own costs incurred during this period and the spreads.
Q.How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock.Or it is 15-20 days if the goods are not in stock,it is according to your quantity.
Q.Can I request to advance the shipment?
A: It should be depends on whether there is sufficient inventory in our warehouse.
Q.Can you produce the products according to my own drawings?
A: Yes, we can produce the products according to your drawings that will be most satisfy you.