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| DMB/- Series Self Actuated Balance Trim - (Downstream Pressure Control Valves) |
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The DMB/- Series, Pressure Reducing Regulators are balanced trim version of popular DM/Series regulators. These self acting control valves keep the outlet pressure constant irrespective of variation in inlet pressure and flow through the valve. Different soft sealing discs are available for various gases and liquids for wide pressure and temperature range up to 190°C. Because of balanced trim design, these regulators can handle very high variations in inlet pressure without disturbing controlled outlet pressure. |
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| Features |
Easy to Maintain
Compact design with minimum number of moving parts. Actuator Internals, Valve Disc & Trim parts can be replaced, without removing the regulator from the pipe line
Tight Shut Off Capability
Special trim design eliminates wear & erosion of seating providing excellent tight shut off capability over long working life.
Tamper Resistant
An adjusting screw lock nut and protective cap is standard to discourage tampering with pressure setting.
Balanced Trim
Because of Balanced trim design, these regulators can handle very high variations in inlet pressure without affecting the accuracy of outlet pressure control.
Safety Feature
Built-in safety against accidental very high pressure (such as failure of pressure control upstream of regulator) because design ensures better shut off at pressures higher than specified operating inlet pressure (but within the body pressure rating). Optional safety shut off feature available against rupture of pipe-line, downstream of regulator. If outlet pressure dips to very low value, due to downstream pipe rupture, optional excess flow check disc cuts off flow, restricting it to a minimal bleed.
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| Specifications |
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Body Size & Connections
Flanged :
1", 1½", 2", 3", 4", 6" & 8", ANSI B16.5 Class 150 & 300 ratings. (Higher rating on request)
Temperature Capabilities
-25°C to 80°C with Nitrile elastomeric parts. -15°C to 180°C with Fluoropolymer elastomeric parts.
Pressure Setting Adjustment
May be adjusted throughout a spring range by turning the adjusting screw
Pressure Registration
Internal standard or downstream control line. |
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| Material Of Construction |
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| Body |
Screwed End Valve : ASTM-A-105 (Standard) S.S. - 304, S.S. - 316. Flanged End Valve : ASTM-A-216 Gr. WCB (Standard) CF8, CF8M
NACE & other special materials available on request |
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| Bottom Diaphragm Casing |
Steel (Std.), S.S.-304, S.S.-316 or same as body material |
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| Spring Casing |
Steel or Aluminium |
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| Internal Trim Parts |
S.S. 316 (Standard), Monel, Copper, Brass
NACE & other special materials available on request |
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| Disc & Diaphragm |
Nitrile (Standard), Neoprene, EPDM, Silicon, PTFE, Fluoropolymer |
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