V/KSM

Vacuum Relief Valvemade of plastic

Features

Extreme Tightness
resulting in lowest possible product Product Includes equipment, protective systems, devices, components and combinations of these. losses and reduced environmental pollution
Non-Corrosive
Aggressive, Sticky, or Polymerizing Products
especially suitable for aggressive, sticky, or polymerizing substances
Weight Reduction
in comparison to steel/stainless steel
Condensate Drainage
automatic condensate drain
Different Plastics
can easily be combined
Function and Description

Full Lift Technology

The device will start to open as soon as the set pressure is reached and is fully open within 10% pressure increase. 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 vacuum (MAWV) of the tank and still safely vent the required mass flow.

Advanced manufacturing technology

Due to our highly developed manufacturing technology, the tank pressure Tank pressure Tank pressure is the pressure within a tank. is maintained up to the set pressure with a seal Seal A seal prevents or limits unwanted transfer of product from one container to another. Seal is used as superordinate term for all types of sealing elements. that is far superior to the conventional standard. This feature is achieved by valve seats made of high-performance plastics and a high grade PTFE seal. After the vacuum 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 stable operation of the valve pallet, optimized performance, and reduced product losses.
Product Data and Features

Dimensions

To select the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (DN), use the flow capacity chart on the following page

DN50 / 2" 80 / 3" 100 / 4"150 / 6" 200 / 8"
a57 / 2.2477 / 3.0387 / 3.43126 / 4.96180 / 7.09
a(115 / 4.53)*(146 / 5.75)*(175 / 6.89)*
b259 / 10.20376 / 14.80373 / 14.69460 / 18.11469 / 18.46
b(338 / 13.31)*(427 / 16.81)*(437 / 17.20)*
c150 / 5.91200 / 7.87225 / 8.86280 / 11.02350 / 13.78
d180 / 7.09250 / 9.84300 / 11.81350 / 13.78560 / 22.05
d(405 / 15.94)*(500 / 19.68)*

Dimensions in mm / inches

* Dimensions in brackets only for PVDF

Material selection for housing

Design A B C
HousingPEPPPVDF
Valve seat Valve seat The valve seat is a component on which the valve pallet rests when the valve is closed. PEPPPVDF
SealingFPMFPMFPM
Valve palletA, C, DB, C, DC, D

Special materials upon request

Material selection for vacuum valve pallet

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 pallet PE PP PVDF Hastelloy
Sealing PTFE PTFE PTFE PTFE
Spindle guide PE PP PVDF Hastelloy
Weight PE PP PVDF Hastelloy

Special materials and other pressure Settings upon request

Flange connection type

EN 1092-1; Form B1
ASME B16.5 CL 150 F.F.

other types upon request

Design Types and Specifications

The valve pallet is weight-loaded, and the highest pressure levels are only attained with metal discs.
Vacuum valve in basic design

Additional special devices available upon request.

Settings

Vacuum:-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.

Flow Capacity Chart

The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”.

Applications