2-way control valves with electric and pneumatic actuators ASTA series P642 made of stainless steel

DN: 15 - 25
PN: 40 -160 bar
t max°: 220 °С
Body material: stainless steel
Connection: wafer

Overview

ASTA P642 is a wafer-type single-seat two-way control valve of compact design, which is controlled by an electric/pneumatic actuator. These valves are designed for precise flow control and are used in high-pressure process systems.

Design features

  • The wafer-type housing has more compact overall characteristics
  • The control element can be replaced without dismantling the valve from the pipeline
  • Repairable design
  • Upon customer request, it is possible to install electropneumatic positioners with standard 4…20 mA control, as well as with additional options (feedback, HART protocol, PROFIBUS, explosion protection, etc.)

Model overview

Those. information

Nominal diameter DN15 – 25
Nominal pressure PN40-160
Temperature of working mediumFrom –60 °C to +220 °C
Working mediumWater, steam, compressed air, and other media compatible with the valve design
Control characteristicsLinear / equal percentage* / cut-off*
Control range30:1
Capacity, Kvs4 – 10 m3/h
Pressure compensationUnbalanced by pressure
Tightness classIV according to GOST 9544-2015
Connection typeWafer
Control typeElectric actuator / pneumatic actuator
NameMaterial
1BodyStainless steel 12Х18Н9
2GuideStainless steel 12Х18Н9
3PlungerStainless steel 12Х18Н9
4RodStainless steel 12Х18Н9
5Rod sealPTFE

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