BVT-MSA linear diaphragm actuator
BVT’s pneumatic diaphragm actuators are designed for use in power and oil & gas industries, or in any application where steam / water valves are involved.
The actuator is installed on top of a control valve, an isolation valve or a desuperheater with a coupling connecting the actuator piston to the valve stem. It is included as standard on many probe-style desuperheater models, and is also sold as an upgrade for existing valves / desuperheaters.
Key features
- Sized and designed based on customer requirements
- Components calibrated and tested before shipping
- High linearity and small dead-band
- Heavy duty for operating in challenging application and environments
- Positioner and other electrical components are installed away from valve in order to avoid high temperatures
- High corrosion protection and ingress protection
Specifications
Maximum air pressure
5.5 bar(a)
Standard operating temperature
-20°C to 80°C
Available configurations
Reverse acting (spring close)
Direct acting (spring open)
Handwheel or no handwheel
Component ingress protection
IP65/IP67
Cylinder corrosion protection
ISO 12944 C4 or
ISO 12944 C5M
Regulatory requirements
ASME, PED, ISO 9001/14001 as standard
ATEX
Tubes and fittings
ANSI 316
Types
Single acting
Modulating or ON/OFF
Default functions
- Fail close at low pressure
- Air filter regulator
Options
- Quick open / close
- Limit switches
- Position transmitter