DN100 4inch Hard Back Seat Wafer body Butterfly Valve

It is used in various industrial applications to control the flow of fluids or gases in pipelines. The “hard back seat” refers to a rigid, durable seat material EPDM designed for enhanced durability and sealing performance compared to soft back seats. The “wafer body” design means the valve is compact, lightweight, and fits between two flanges, making it cost-effective and easy to install in systems with limited space.


  • FOB Price: US $0.5 - 9,999 / Piece
  • Sample: Available
  • Supply Ability: 10000 PCs per Month
  • Size: 2”-48”/DN50-DN1200
  • Pressure Rating: PN10/16, JIS5K/10K, 150LB
  • Warranty: 18 Month
  • Brand Name: ZFA Valve
  • Service: OEM
  • Product Detail

    Product Detail

    Size & Pressure Rating & Standard
    Size DN40-DN1200
    Pressure Rating PN10, PN16, CL150, JIS 5K, JIS 10K
    Face to Face STD API609, BS5155, DIN3202, ISO5752
    Connection STD PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259
    Upper Flange STD ISO 5211
    Material
    Body Cast Iron(GG25), Ductile Iron(GGG40/50)
    Disc DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA
    Stem/Shaft SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel
    Seat NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA
    Bushing PTFE, Bronze
    O Ring NBR, EPDM, FKM
    Actuator Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator

    Product Display

    Wafer Type Butterfly Valve (17)
    Wafer Type Butterfly Valve (14)
    Wafer Type Butterfly Valve (16)
    Wafer Type Butterfly Valve (13)
    Wafer Type Butterfly Valve (15)
    Handle Actuated Ductile Iron Wafer Type Butterfly Valve (6)

    Product Advantage

    The wafer-type valve body can be installed between PN6, PN10, PN16, ANSI 150 or JIS 5K/10K flanges, suitable for various pipeline standards. Its small size and light weight simplify installation in space-constrained systems.
    Compared with soft-back valve seats, hard-back valve seats are less prone to deformation. However, hard-back valve seats are not as replaceable as soft-back valve seats.
    The valve body is made of ductile iron to ensure corrosion resistance and is suitable for various media such as water, air or weak chemicals.

    CF8M disc offers excellent resistance to chemicals, water, steam, oils, and mildly corrosive media, making it suitable for harsh industrial environments.

    Approvals and Standards: Meets standards such as EN 593 (design), ISO 5752 (face-to-face distance), and API/ANSI/DIN/JIS flange compatibility.

    FAQ

    Q: Are you a Factory or Trading?
    A: We’re a factory with 17 years production experience, OEM for some customers around the world.

    Q: What is your After-sales service term?
    A: 18 months for all our products.

    Q: Do you accept custom design on size?
    A: Yes.

    Q: What's your terms of payment?
    A : T/T, L/C.

    Q: What is your transportation method?
    A: By sea, by air mainly, we also accept express delivery.

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