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Home > Butterfly Valves > Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
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Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection
Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection

Ductile Cast Iron Double Disc Door Wafer Type Dual Plate Butterfly Check Valve for Oil Gas Connection

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Product Description

Basic Information
Model NO.
DH77X
Connection Form
Wafer
Structure
Butterfly Valves
Seal Form
Force Sealed
Work Pressure
Mid-Pressure (2.5mpa < Pn < 6.4mpa)
Working Temp.
-40°C < T < 120°C
Material
Metal Hard Sealed
Application
Industrial, Water, Household Usage
Warranty
3 Years
Specification
2" ~ 12"
Product Description
Wafer Butterfly Check Valve

Wafer Butterfly Check Valve

This dual plate check valve is manufactured in accordance with standard, featuring a short face-to-face dimension, lightweight construction, and excellent structural rigidity. The valve plates open smoothly under forward flow and close instantly under reverse pressure with the assistance of torsion springs.

Key Advantages:
Compared with swing check valves, the dual plate design provides faster response, lower pressure loss, and greater operational stability, making it suitable for high-performance pipeline systems.

Applications

  • Water supply and distribution systems
  • HVAC and chilled water systems
  • Fire protection pipelines
  • Oil and gas transmission lines
  • Industrial process pipelines
  • Chemical and power plant systems
Valve Detail 1
Valve Detail 2
Valve Detail 3
Professional Solutions

Integrated Trading & Manufacturing · Multi-Factory Resources

We are a professional trading company dedicated to the export of valve products. Leveraging strong supply chain integration capabilities, we provide both FM/UL certified premium products and cost-effective solutions, covering various engineering demands across different markets.

Main Product Range: Check Valves, Butterfly Valves, Strainers, Control Valves, Air Release Valves, and Resilient Seated Gate Valves (BS5163/DIN Standard).

Manufacturing Capability
Technical Specifications
Category Part Name Material / Specification
Size Range DN50 - DN300 2'' - 12''
Butterfly Valve Materials Body Ductile iron A536, 65-45-12
Shaft Stainless Steel SS431
Disc Ductile iron + EPDM/NBR
Certificates Fire Valve FM / UL Certified
Water Valve WRAS Approved
Connection Standard Grooved (AWWA C606) / Flange (ASME B16.1 / EN1092-2)
Rating Pressure/Temp 350psi / 0℃-100℃
Factory & Production Line
Production 1
Production 2
Production 3
Production Line View
Quality Assurance & Logistics
Certificates
Packing
Frequently Asked Questions
Can I have a sample order for the valve?
Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.
Do you provide OEM or ODM services?
Yes, we have a specialized research and development team. Products can be manufactured according to your specific requests and designs.
What certifications can you provide?
We can provide ISO9001:2000, CE, DNV, Lloyd's Register (LR), FM, and UL certifications, along with Material Analysis and Test Reports as required.
What are your delivery terms?
We accept EXW, FOB, CIF, and other standard international trade terms. You can choose the one most convenient for your logistics.
How do you handle after-sales service?
We provide a 12-month warranty from the date of shipment and take full responsibility for all quality-related issues through strict quality control processes.
What is the average lead time for mass production?
Mass production typically takes 15-60 days after receiving the deposit. We provide production schedules and photos every two weeks to keep you updated.

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