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Tianjin Yibiao valve manufacturing Co., Ltd.

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Professional Valve Manufacturer

Customer Service Hotline +86-138-2033-8668

Pneumatic High-Performance Butterfly Valve

Nominal Diameter DN (mm) 50–1200
Nominal Pressure PN 0.6, 1.0, 1.6, 2.5 MPa Connection Type Wafer-type Disc Configuration Vertical disc Flow Characteristics Approximately quick-opening type Operating Range 0–90° Leakage Per GB/T4213-92, 10?? of Kv value; Soft seal: Zero leakage Basic Error With positioner: Less than ±2% of full stroke Hysteresis With positioner: Less than ±2% of full stroke Actuator Configuration Single/double-acting pneumatic actuator Control Mode On/off type (two-position control), Modulating type (4–20mA control)

Parameters

Specifications: DN40-DN800

Material: WCB

Brand: Tianjin Yibiao

Model: YBFM

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Product Details

Actuator Model: Single/Double-Acting Pneumatic Actuator

Supply Pressure: 0.4–0.7 MPa

Air Source Connection: G1/4“, G1/8”, G3/8“, G1/2”

Ambient Temperature: -30 to +70°C

Actuation Type Single-Acting Actuator: Air-to-Close (B) -- Valve position opens upon air loss (FO); Air-to-Open (K) -- Valve position closes upon air loss (FC) Double-Acting Actuator: Air-to-Close (B) -- Valve position holds upon air loss (FL); Air-to-Open (K) -- Valve position holds upon air loss (FL)

Compatible Accessories: Positioner, Solenoid Valve, Air Filter Regulator, Hold-Open Valve, Limit Switch, Position Transmitter, Handwheel Assembly, etc.

Part Name Material Name

Valve Body Cast Iron, Cast Steel, Stainless Steel, Chromium-Molybdenum Steel, Alloy Steel

Disc: Cast steel, alloy steel (hard chrome plated), stainless steel, chromium-molybdenum steel

Seal: Rubber, PTFE, PPL, stainless steel, polyurethane, wear-resistant material

Stem: 2Cr13, 1Cr13 stainless steel, chromium-molybdenum steel

Packing: PTFE, flexible graphite