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The Dd-SL Stainless Steel Double Disc Lug Check Valve
Design Features
Double disc design: Adopting a spring-assisted semi-disc design to ensure that the valve closes quickly under low pressure and reduces the impact when closing.
Compact structure: The wafer type structure saves space and is convenient for installation and maintenance.
Low opening pressure: The spring-loaded double disc design ensures quick opening under low flow conditions, improving fluid flow efficiency.
Fireproof and anti-static design: It complies with relevant standards to ensure safety in flammable environments.
Multiple sealing materials: The valve seat materials include rubber (NBR, EPDM), Viton, etc., which can be selected according to the medium and temperature conditions.
Multiple connection methods: The lug type connection method is provided, which is applicable to different pipeline systems.
Technical Specifications
Size range: 1/2" ~ 48" (DN15 ~ DN1200)
Pressure rating: 150LB~2500LB (PN20~PN420)
Temperature range:
EPDM: -10°C to +120°C.
NBR: -10°C to +80°C.
Viton: -23°C to +150°C.
Applicable media: Fresh water, seawater, wastewater, food, steam, various oil products, acid-base liquids, etc.
Materials:
Valve body: Stainless steel CF8M/SS316.
Disc: Stainless steel SS316/SS304.
Valve seat: NBR, EPDM, Viton.
Spring: Stainless steel.
Connection method: Lug type connection.
Design standards: API 594, API 598, DIN 3230, ANSI B16.34.
Testing standards: API 598, DIN 3230.
Product Advantages
Excellent corrosion resistance: Stainless steel performs well in a variety of media.
Low flow resistance design: The double disc structure and compact design reduce fluid resistance.
Quick closing: The spring-assisted function ensures that the valve closes quickly under low pressure to prevent backflow.
Fireproof and anti-static design: It complies with international standards to ensure safety in flammable environments.
Easy maintenance: The wafer type structure is convenient for installation and maintenance.
Multiple operation modes: Manual, pneumatic or electric actuators can be selected.
Application Fields
Water treatment industry: Used in fresh water, seawater and wastewater treatment systems.
Chemical industry: For handling corrosive liquids and high-temperature and high-pressure media.
Petroleum and natural gas industry: Used for the transportation and treatment of crude oil and natural gas.
Power generation industry: Used for the fluid control system of power plants.
General industrial applications: Such as the control of media like air, steam, fuel oil, etc.
Certification and Compliance
API 594 certification: Complying with the API 594 standard to ensure product quality and performance.
API 598 certification: Complying with the API 598 testing standard to ensure the tightness and reliability of the valve.
ISO 9001 certification: Ensuring quality control in the manufacturing process.
CE certification: Complying with European standards and suitable for the European market.
Competitive Advantage:
On Samples Buyer bear the air fee, but this fee will be reduced from order directly
On After Sales Free replacement if there is any quality problem
On Delivery Never delay delivery time
On Materials Ensure material pure
Ensure material pure
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