1、 Overview of Electric Bellows Sealed Single Seat Regulating Valve

HTSW electric bellows sealed single seat regulating valveThe valve core adopts an upward guiding structure, with a compact valve structure and S-shaped channels, which reduces pressure drop loss, increases flow rate, has a wide adjustable range, and high accuracy of flow characteristics, in compliance with the IEC534-1-1976 standard. The leakage rate of the regulating valve complies with ANSI B16.104 standard. The upper valve cover adopts a corrugated pipe sealing structure, which is suitable for regulating extremely toxic, flammable, explosive, volatile and rare precious metal media, and can also be used in vacuum situations. standard specification

Nominal diameter: DN40~500

Nominal pressure: ANSI 125LB~1500LB

Connection form: flange, welding

Applicable temperature: -101~649 ℃

2、 Main performance of electric bellows sealed single seat regulating valve

Leakage rate: Metal valve seat: less than 0.01% of the rated capacity of the valve, in compliance with ANSI B16.104-1976 Class IV

Soft seat: 10-7 less than the rated capacity of the valve, in compliance with ANSI B16.104-1976 Class IV

Return difference: equipped with DKZ actuator at 1.5%; Equipped with 361L actuator, it is 2%; Equipped with an RS actuator of 1%; The PSL actuator is equipped with 1 ℅

Basic error: ± 2.5% for DKZ actuator; The 361L actuator is equipped with ± 2 ℅; The RS actuator is equipped with ± 1 ℅; The PSL actuator is equipped with ± 1 ℅

Note: Standard V-shaped polytetrafluoroethylene packing is used

Adjustable range: 50:1 (0.25 ≤ Cv ≤ 14) or 30:1 (CV ≤ 0.16)

3、 Electric bellows sealed single seat regulating valve body

Nominal diameter: 40mm, 50mm, 65mm, 80mm, 100mm, 150mm, 200mm

Nominal pressure: ANSI 125, 150, 300, 600

JIS 10、20、30、40K

PN1.6、4.0、6.4MPa

Operating pressure: 1.6MPa, 2MPa, 3.5MPa

Connection type: flange connection: FF, RF, RJ, LG, groove type, embedded type

Flange standards: JIS B2201, ANSI B16.5, GB/T9112~9124-2000, etc

Welding connection: embedded welding SW (40-50 mm)

Butt welding BW (65-200mm)

Materials: cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG316L), titanium, etc

Upper valve cover: -45~-17 ℃, -17~+230 ℃,+230 ℃~+350 ℃

Note: The working temperature shall not exceed the allowable range of various materials

Cover type: bolt compression type

Packing: V-shaped PTFE packing, PTFE impregnated asbestos packing, asbestos braided packing, graphite packing