OEM Bidirectional Wafer Knife Gate Valve

The complete variety, novel design, and excellent quality of our Hastelloy C22 Butterfly Valve, A494 CW12MW Ball Valve, F310 Globe Valve have impressed our customers both at home and abroad. We own complete product specifications with stable quality, and a wide range of product sales. We guarantee the continuous improvement of product quality and ensure the common interests of both parties and the value of products.

Product Details

NSV One piece cast body Bi-Directional Resilient Seated Knife Gate Valve features a unique, patented perimeter seat design that provides bubble-tight shutoff in either direction, even on dead end service. The valve is designed for isolation and on/off applications in the paper, chemical, mining, power and waste water industries. It is designed to handle clean, dirty, viscous and corrosive liquids, sludge, fibrous slurries, clean and corrosive gases.

Applicable Standard
Design Standard: MSS SP-81, ANSI, API, ISO, DIN, EN, JIS etc.
End Flange: ASME B16.5, ASME B16.47, DIN2533

Products Range
Size: 2" to 32"(DN50 to DN800,larger diameters on request)

Flange Connection

EN1092 PN10,PN16,PN25
ANSI B16.5 (class 125,150)

Materials
Body Materials: Ductile Iron, Cast Steel, Stainless Steel, Duplex and Special Alloys
Knife Gate: Stainless Steel, Duplex and Special Alloys

Seat: Resilient Seat
Operation: Handwheel, Gear, Pneumatic, Hydrau-Pneumatic and Electric etc.

Bi-directional knife gate valves will seat on either side of the gate and operate with back pressures, providing adequate water tightness and has a tendency of avoiding any build-up of solids that could prevent the valve from closing. The Bi-directional valve is generally more expensive, and you can expect to pay up to 30% more. Bi-directional valves tend to have a lower torque/thrust over the Uni-directional valves and they have the added advantage of being able to be fitted on “end of line”.

FAQ

1. Q:Does “NSV” valves have supply to any value end user?

A:Yes,it just like PETROKIMIA GRESIK in Indonesia, BP Iraq,ESFAHAN MOBARAKEH STEEL In Iran etc

2. Q: What’s the valves warranty?
A: Our valves warranty period should be 18 months from the date of shipment or 12 months after installation, whichever occurs first.

3. Q: What’s your payment terms?

A: As our company’s policy, we normally have bellow 3 payment terms,it also can negotiation both parties before confirm order.
1) 100% T/T or West Union in advance that order value within $2,000.00USD.

2)30% T/T advance+70% balance after the shipment for the order value above $2,000.00USD.

3)L/C at sight for the order value above $50,000.00USD.

With perfect service, and sufficient supply, our company has a reputation in the OEM Bidirectional Wafer Knife Gate Valve industry. We are fully adjusting the corporate structure in accordance with the modern corporate model and striving to build a perfect corporate management system. Based on standardized management and stable operation, we always put the interests of customers first. The reputation of customers is our best advertisement. We are willing to work together with new and old customers to create brilliant!