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D/KSM

Pressure Relief Valve made of plastic

  • 10% technology for minimum pressure increase up to full lift
  • extreme tightness, resulting in lowest possible product losses and reduced environmental pollution
  • set pressure close to opening pressure for optimum pressure maintenance in the system
  • valve pallet is guided inside the housing to protect against harsh weather conditions
  • non-corrosive
  • especially suitable for aggressive, sticky, or polymerizing substances
  • weight reduction in comparison to steel/stainless steel
  • high surface quality
  • automatic condensate drain
  • different plastics can easily be combined
  • maintenance-friendly design

Función y Descripción

The PROTEGO® valve D/KSM is a state-of-the-art pressure relief valve with excellent flow performance made out of high grade synthetic material. It is primarily used as a safety fitting for relieving pressure in tanks, containers, and process engineering equipment. The valve prevents emission losses almost up to the set pressure. The valve is a perfect solution for corrosive, polymerizing, or sticky substances. The device will start to open as soon as the set pressure is reached and only required 10% overpressure to reach full lift.

Continuous investments in and a commitment to research and development have allowed PROTEGO® to develop a low pressure valve which has the same opening characteristic as a high pressure safety relief valve. This “full lift type” technology allows the valve to be set at just 10% below the maximum allowable working pressure (MAWP) of the tank and still safely vent the required mass flow.

Due to our highly developed manufacturing technology, the tank pressure is maintained up to the set pressure with a tightness that is far superior to the conventional standard. This feature is achieved by special valve seats made of high quality synthetic material or PTFE. After the excess pressure is released, the valve re-seats and provides a tight seal.

The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research, resulting in a stable operation of the valve pallet, optimized performance, and reduced product losses.

Dimensiones

To select the nominal size (DN), use the flow capacity chart on the following page

DN50 / 2" 80 / 3" 100 / 4" 150 / 6" 200 / 8"
a376 / 14.80521 / 20.51563 / 22.17687 / 27.05952 / 37.48
a(543 / 21.38)*(681 / 26.81)*
b180 / 7.09250 / 9.84300 / 11.81350 / 13.78560 / 22.05
b(405 / 15.94)*(500 / 19.68)*
Dimensiones en mm / pulgadas * Dimensions in brackets only for PVDF

Selección de materiales para la vivienda

Design A B C
HousingPEPPPVDF
Valve seatsPEPPPVDF
SealingFPMFPMFPM
Valve palletA, C, DB, C, DC, D
Special materials upon request

Selección de materiales para la válvula de presión

Design A B C D
Pressure range [mbar]
[inch W.C.]
+6,0 up to +16
+2.4 up to +6.4
+5,5 up to +16
+2.2 up to +6.4
+9,5 up to +30
+3.8 up to +12

+30 up to +100

+12 up to +40

Valve palletPEPPPVDFHastelloy
SealingPTFEPTFEPTFEPTFE
Spindle guidePEPPPVDFHastelloy
WeightsPEPPPVDFHastelloy
Special materials and other pressure Settings are available upon request

Tipo de bridas de conexión

EN 1092-1; Form B1
ASME B16.5 CL 150 F.F.
other types upon request

Modelo y especificación

The valve pallet is weight-loaded, and the highest pressure levels are only attained with metal disks.

Pressure valve in basic design

D/KSM-

Additional special devices available upon request.

Settings

Pressure: +6.0 mbar +100 mbar
+2.4 inch W.C. +40 inch W.C.
+4.0 mbar +100 mbar
+1.6 inch W.C. +40 inch W.C.
+4.5 mbar +100 mbar
+1.8 inch W.C. +40 inch W.C.
Higher pressure settings upon request.

Diagrama de flujo volumétrico

Los diagramas de flujo volumétrico han sido determinados con un banco de pruebas de caudal calibrado y certifi - cado por TÜV. El flujo volumétrico V. en [m³/h] y el CFH se refi eren a las condiciones estándar de referencia de aire según ISO 6358 (20°C, 1bar). La conversión a otras densidades y temperaturas están referidas en el Vol. 1: “Fundamentos Técnicos”.