Repair kit for pressure reducer type 44-2 DN50 PN25 No.: 1109058 Samson
Episode 44
Type 44-0 B · Type 44-1 V pressure reducing valve
Type 44-6 V · bypass valve
Application
- For specified values from 0.2 bar to 20 bar with valves G ½ to G1 P25 for non-flammable gases
- up to 80 °C, liquids up to 150 °C and steam up to 200 °C.
Pressure reducing valve Type 44-0 V, 44-1 V: valve it closes when the pressure behind the valve increases.
Bypass valve Type 44-6 V: the valve opens when the pressure increases in front of the valve.
The regulators consist of a valve and a bellows actuator and a setter.
Distinctive properties:
- P – regulators that do not require significant technical maintenance maintenance and auxiliary energy,
- wide range and convenient setpoint setting,
- single seat valve with spring loading and unloading by pressure by means of a metal bellows,
- stainless steel bellows,
- compact design with extremely low mounting height,
- a setter with the possibility of sealing,
- the possibility of manufacturing the valve body from brass or stainless steel.
Constructions
- Pressure regulator with actuator for preset pressure ranges values up to 1; 4; 6 or 10 bar and a setting valve with internal thread G 1/2, G 3/4 or G 1.
- Pressure reducing valve type 44-1 V (Fig. 1) setting valve Ru 25 for liquid media up to 150 °C and gaseous media up to 80 °C, with pressure relief.
- Pressure reducing valve type 44-0 B (fig. 1) setting valve Ru 25 for steam up to 200 °C, with pressure relief.
- Bypass valve type 44-6 V setting valve with RU 25 for liquids up to 150 °C, gases up to 80 °C and steam up to 200 °C, with pressure relief.
1) Special design
- special Kvs value for G1/2
- with oil-resistant internal parts for type 44-1V /44-6V
- PTFE-free version
- designed for purified gases, water and steam.
- with flange connection for stainless steel housing
1)without pressure unloading at set values from 0.2 to 2 bar.
Pressure reducing valves are designed to maintain the pressure acting at the outlet of the valve at a predetermined constant level and are especially recommended for use in centralized heating systems and extensive heating networks.
Basically, type 44-2 and type 44-3 regulators consist of a housing with an unloaded drive cone with a working membrane and a package of springs. The type 44-3 regulator is a safety pressure reducing valve and is therefore additionally equipped with a second working diaphragm.
When the first membrane is destroyed, the device retains its regulatory properties. Moreover, in case of excessively high pressure at the outlet of the regulator, it works like a safety shut-off valve.
The working medium enters the valve inlet in the direction indicated by the arrow on its body, enters the free section between the seat (2) and the cone (3), and then leaves the valve at the outlet with reduced pressure. Reduced pressure, via control wiring (11) it acts on the working membrane (6), where it is converted into a displacement force, which is balanced by the force of the compressed spring pack. By rotating behind the sensor (10), the force of the spring action changes, therefore, the level of the set pressure. As the pressure at the valve outlet increases, it closes.