MachineU > China Products > Minerals & Metallurgy

A31 Wafer Wear Resistant Butterfly Valves

Specifications

Model NO. :

A31

Connection Form :

Wafer

Driving Mode :

Depend on Products

Nominal Pressure :

Depend on Products

Channel :

Depend on Products

Structure :

Depend on Products

Type :

Depend on Products

Function :

Blow-Down Valve, Relief Valve, Atmospheric Valve

Temperature :

-40--+260

Standard :

En1092 Pn10/16, ASME B16.5 Class150

Application :

Industrial Usage

Body :

ASTM A536 65-45-12, CF8, CF8m, Nylon

Disc :

ASTM A536 65-45-12 Nickle Plated, CF8, CF8m, 250

Seat :

EPDM, NBR, FPM, HNBR

Stem :

Ss420, Ss431

Nominal Diameter :

DN50-DN2000

Operating Pressure :

16bar for DN50-DN300, 10bar for DN350- DN2000

Tightness Check :

ISO 5208 Category 3, API 598 Table 5

Operation :

Hand Lever, Gear Box, Pneumatic Actuator, Electri

Transport Package :

Wooden Box

Specification :

Depend on products

Trademark :

Zegota

Origin :

China

Production Capacity :

10000 PCS/Month

MOQ :

Price :

500

Description

A31 Wafer Wear Resistant Butterfly Valves

The A31 Wafer Wear Resistant Butterfly Valves is a high-performance, compact industrial fluid control solution engineered for demanding industrial applications. Featuring a precision-engineered concentric design where the valve stem aligns perfectly with the disc centerline, this valve ensures smooth operation and reliable sealing in low-to-medium pressure systems. Constructed with robust materials such as ductile iron, stainless steel, or specialty alloys, and paired with corrosion-resistant EPDM, NBR, or high-temperature seals, it operates effectively across a temperature range of -20°C to 200°C, handling diverse media including water, steam, oils, and mild acidic/alkaline fluids.

Its space-saving wafer-style flange design simplifies installation and reduces pipeline complexity, making it ideal for space-constrained environments like municipal water supply, HVAC systems, food processing, and chemical plants. The lightweight structure, combined with low-torque operation, supports manual worm gear, pneumatic, or electric actuators for rapid response and precise flow control. Certified to ISO 5211 drive interfaces and API 609 fire-safe standards, the valve offers bidirectional sealing, a lifespan exceeding 100,000 cycles, and easy maintenance through replaceable seat seals-significantly reducing lifecycle costs. Typical applications include pump station shutoff, heat exchanger isolation, and industrial circulation control, positioning it as an optimal choice for efficiency-driven operations and cost-effective infrastructure.