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Wafer Butterfly Valve

Wafer Butterfly Valve

Compact Design With Corrosion Resistance For Industrial Pipeline Systems

The wafer butterfly valve provides reliable flow control with a compact design for water, oil, and gas systems, offering corrosion resistance and easy installation up to pn16 and 120°c.

Wafer Butterfly Valve

Compact Design With Corrosion Resistance For Industrial Pipeline Systems

The wafer butterfly valve provides reliable flow control with a compact design for water, oil, and gas systems, offering corrosion resistance and easy installation up to pn16 and 120°c.

Wafer Butterfly Valve

Wafer-style butterfly valves are designed to clamp between two flanges, with four alignment holes ensuring accurate positioning. Compatible with most common flange standards.

Size & Pressure

Size: 2.5"
Rating: JIS 10

Body

Material: ASTM A536 Ductile Iron
Wafer-style design with alignment holes

Disc

Material: ASTM A351 CF8
Corrosion-resistant stainless steel casting

Stem

Material: SS416
Pinless design for higher reliability

Seat

Material: EPDM
Provides flexible sealing and chemical resistance

Actuation

Standard: Electric actuator
Other actuation options available upon request

The Wafer Butterfly Valve is a high-performance flow control solution designed for industrial applications requiring efficient, compact, and cost-effective pipeline management. Featuring a slim wafer-style body that fits between pipeline flanges without additional bolting, this valve reduces installation space and costs by up to 40% compared to flanged alternatives. Constructed from materials like ASTM A536 ductile iron or CF8M stainless steel, with optional coatings such as epoxy or PTFE, it offers excellent corrosion resistance, making it ideal for pipeline flow control in water treatment, HVAC, and chemical processing systems.

Operating via a quarter-turn mechanism, the wafer butterfly valve uses a centrally mounted disc to regulate or isolate the flow of liquids, gases, or slurries. Available in sizes from 2" to 48" (DN50 to DN1200), it supports pressure ratings up to PN16 (ANSI 150) and temperatures from -20°C to 120°C, depending on seat materials like EPDM for water or Viton for chemicals. Compliant with API 609 for design, EN 593 for metallic valves, and ISO 5752 for face-to-face dimensions, it ensures bubble-tight shutoff and bi-directional sealing. Certifications such as NSF 61 for potable water and DNV for marine applications validate its reliability in industrial flow valve setups, including irrigation, fire protection, and wastewater management.

The valve’s lightweight construction—up to 50% lighter than gate valves—combined with a pinless disc-stem connection enhances durability by eliminating leak points and simplifying maintenance. Its corrosion resistant valve properties are bolstered by body coatings that protect against rust, chlorides, and abrasive media, ensuring a service life up to three times longer than uncoated carbon steel in harsh environments. The low torque design, often under 150 Nm for 12" sizes, supports manual levers, gear operators, or pneumatic/electric actuators per ISO 5211, enabling automation in SCADA-integrated systems. Rigorous testing per API 598 for leakage and ASTM F1199 for mechanical integrity confirms tensile strengths above 415 MPa, ensuring performance under cyclic loading.

Compared to lug or double-flanged valves, the wafer butterfly valve offers superior cost-effectiveness and ease of installation, particularly in space-constrained applications like shipbuilding or modular plants. Its streamlined disc profile minimizes pressure drop (Cv values up to 10,000), optimizing flow efficiency in pipeline flow control. Optional features, such as extended stems for insulation or fire-safe seals per API 607, enhance versatility for HVAC, oil and gas, and food processing industries. The valve’s ability to handle mild corrosives and slurries, with optional PTFE linings, makes it a sustainable choice for eco-friendly systems requiring minimal downtime.

Addressing common challenges like pipeline corrosion, seat wear, and high maintenance, this compact butterfly valve incorporates a one-piece stem for blowout-proof safety and resilient seats for zero-leakage performance. Its compatibility with ANSI, DIN, and JIS flange standards ensures global applicability, while surface treatments like 3LPE or FBE coatings further enhance durability in corrosion resistant valve applications. Whether throttling flow in desalination plants or isolating lines in petrochemical facilities, the Wafer Butterfly Valve delivers reliable, low-maintenance industrial flow control for diverse industrial operations.

FAQs

Engineered to meet diverse industrial needs with robust materials and versatile designs.

Its compact design saves space and costs, while coatings ensure corrosion resistance for reliable pipeline flow control.

Yes, it handles up to PN16 and ANSI 150 with robust sealing for industrial flow valve applications.

It meets API 609, EN 593, ISO 5752, and NSF 61 for safety and performance in compact butterfly valve uses.

Wafer valves are more compact and cost-effective for inline use, while lug types support end-of-line service in pipeline flow control.
What is a valve?

General Standards of Valves

Organization Standard Description
ANSI American National Standards Institute General industrial standards
API American Petroleum Institute Standards for oil and gas industry
ASME American Society of Mechanical Engineers Boiler and pressure vessel codes
BS British Standards UK national standards
GB, JB, HG China Valve Standards Chinese national and industry standards

Industrial Applications

Oil & Gas

Upstream, midstream, and downstream operations, including drilling, refining, and transportation.

Chemical Processing

Handling corrosive and hazardous chemicals in various chemical plants.

Power Generation

Steam, water, and fuel systems in thermal, nuclear, and hydroelectric plants.

Water Treatment

Municipal water supply, wastewater treatment, and industrial water management.

HVAC

Heating, ventilation, and air conditioning systems in commercial and industrial buildings.

Pharmaceutical & Food

Sterile and hygienic applications, precise flow control in sensitive industries.

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