High Quality Cast Iron Manual Spring Butterfly Check Valve

• Customization: Available
• Media: Water
• Driving Mode: Electric
• Model NO.: DN40-DN800
• Structure: Centre Sealing
• Seal Form: Supercharging Pressured Sealed
• Valve Stem: Normal
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Normal Temperature (-40°C<T<120°C)
• Material of Seal Surface: Soft Sealed
• Valve Body: Casting
• Standard: JIS, ANSI, DIN, API, BS, GB
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Certificate: Ce
• Body Material: Cast Iron
• Disc Material: Cast Iron
• Seat Material: PTFE
• Actuator: Worm Gear
• Color: Customized
• Aplication: Marine, Industrial, Mine
• Transport Package: Plywood Case
• Specification: DN40-DN800
• Trademark: ZHONGHUI
• Origin: Tianjin
• HS Code: 8481804090
• Production Capacity: 100000 Pieces Per Year

Product Description

Tianjin zhonghui Valve Co.,Ltd ia an integrity valve manufacturer, which has its own foundry, matching shop, and  assembly line. As a result, we can control the overall quality by ourselves and guarantee delivery time. Our main products are gate valve, butterfly valve, check valve and control valve. Also, we can provide valve parts, including valve body, disc, seat, stem and spare parts. Our butterfly valve satisfies to the international standard like GB, ANSI/API, DIN as well as client's special specifications. The butterfly valves have met with warm reception based on excellent quality, good shipment and timely delivery time all over the world. We have been exported to Korea, Japan, Singapore, France and so on. We await your consultation and visit.

Check Valve

Main Feature:
1. Wafer butterfly check valve a save-energy product, is manufactured based on the foreign advanced technology and in accordance with relative international standards.
2. This product is featured by excellent retaining performance, high safety and reliability and low flow resistance.
3. It is suitable for systems in the industries of petrochemical, food processing, medicine, textile, papermaking and so on.

Description:
1. Size: DN50-600
2. Body: Cast iron/Ductile iron/Cast steel;
3. Disc: Ductile iron/Stainless steel/Aluminum Bronze
4. Seat: Nitrile rubber/ EPDM (Ethylene Propylene Diene Monomer)/ PTFE (Poly tetra fluoroethylene)/ Fluororubber
Nitrile rubber: Excellent oil resistance, high wear resistance, good heat resistance, strong adhesion.
EPDM: (1) Low price and high cost performance
(2) Excellent aging resistance. When used together with other unsaturated diene rubbers such as NR, SBR, BR, NBR, and CR, EPDM can act as a polymer antioxidant or anti-aging agent.
(3) Excellent chemical resistance, acid, alkali, detergent, etc.; polar oil resistance.
(5) Wide application temperature range
PTFE: Excellent chemical stability, corrosion resistance, sealing, high lubricity and non-stickiness and good resistance to aging. High temperature resistance, low temperature resistance. Corrosion resistance, inert to most chemicals and solvents, resistant to strong acids and bases, water and various organic solvents.
Fluororubber: High temperature resistance, oil resistance and chemical resistance
5. Available with handles, manual gear operators and electric or pneumatic actuators.