Masoneilan 525-526 Series Pressure Reducing, Back Pressure & Differential Pressure Regulators
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Features
Top and Bottom Guiding
A well accepted industry standard particularly suited for double seated plugs to provide adequate support against side loads.
High Capacity with Low Recovery
Flow capacity is at top levels for contemporary double seated regulators and is attained with very little pressure recovery as indicated by a high critical flow factor.
Reduced Capacity Trim
0.4 Factor Trim - the most practical double seated trim design giving a substantial reduction in capacity while maintaining desirable flow characteristics.
High Performance Materials
Materials of construction have been selected for high performance and long life when handling the high pressure drop capabilities of the valve.
High Temperature Applications
For temperatures over the rating of the diaphragm material, the regulator must be mounted with the actuator below the centerline of the regulator body. The diaphragm will be protected from the high temperature by a condensate barrier in the sensing line and actuator diaphragm case. If installed otherwise, an adequate condensate barrier must be incorporated. Consult factory for more information.
Configurations
Models 525 and 526 Regulators are designed for use with the 10900 Series Actuators for reducing, back pressure and differential pressure applications.
General Data
Function
Pressure Reducing 525
Differential Pressure Reducing 525-50
Back Pressure 526
Differential Back Pressure 526-50
Service
Steam, Gas, Liquids
Size
¾” through 4” (20 through 100 mm)
Ratings & Connections
Flanged : ASME CL150-600
Welded : BW or SW
Screwed : NPT ¾” through 2” (20-50 mm)
Body
Type : High Capacity Globe with Double Seated Top and Bottom Guided Plug
Materials : Carbon steel, stainless steel
Trim
Plug Type : Disc
Seat Ring : Threaded
Guide : Heavy Top and Bottom Guided
Capacity : Full Area, Reduced Capacity in All Sizes
Actuator
Type : 10900 Spring Diaphragm
