D/SR, D/SR-W

Roof Drain Valves 

Caractéristiques

Function of an Inlet Cup
The Ceiling Valve Functions as an Inlet Cup and Directs Rainwater Through Scissor Pipes Into the Sewer System
Prevention of Medium Leakage
The Non-Return Cap Prevents Medium Leakage onto the Floating Roof in Case of Leaks
Protection of the Ceiling Valve
The Inlet Screen Protects Against Coarse Dirt, Leaves, and Nesting Birds

Fonction et description

Roof Drain Valve for Floating Roof Drainage Systems

The PROTEGO® Roof Drain Valves D/SR or D/SR-W have the function of an inlet cup, which collects the rainwater from the floating roof Toit flottant A floating roof is the roof of a tank that is fitted with floating chambers (pontoons) and lies on top of the liquid. through the scissor pipes of a PROTEGO® Floating Roof Drainage System, e.g., SE/K or SE/CK, into the sewage system.

Protection Against Debris, Leaves, and Nesting Birds

Under normal operating conditions, the roof drain valve Soupape de plafond A roof drain valve is mounted on floating-roof tanks and allows controlled draining of collected rain water into the sewage system via a floating roof drainage system. is open. In case of any leakage, the non-return valve prevents the stored substance from escaping to the floating roof. The inlet screen protects the roof drain valve from any dirt, leaves, or nesting animals.

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Données produit

Dimensions D/SR-W

DN80 / 3'' 100 / 4''150 / 6''
a550 / 21.65600 / 23.62650 / 25.59
b490 / 19.29540 / 21.26590 / 23.23
c450 / 17.72500 / 19.69550 / 21.65
d205 / 8.07250 / 9.84320 / 12.6
e490 / 19.29490 / 19.29490 / 19.29
f285 / 11.22320 / 12.6350 / 13.78
g150 / 5.91180 / 7.09225 / 8.86

Dimensions in mm / inches

Dimensions D/SR

DN80 / 3" 100 / 4" 150 / 6"
a550 / 21.65600 / 23.62650 / 25.59
b490 / 19.29540 / 21.26590 / 23.23
c450 / 17.72500 / 19.69550 / 21.65
d240 / 9.45280 / 11.02330 / 12.99
e490 / 19.29490 / 19.29490 / 19.29
f160 / 6.3180 / 7.09240 / 9.45
g200 / 7.87220 / 8.66285 / 11.22

Dimensions in mm / inches

Material selection

DesignAB
HousingSteelStainless Steel
Non-return valveRed BrassRed Brass
Valve discSteelStainless Steel
Quick-action shut-offSteelStainless Steel
GasketPURPUR

The device Appareil A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow. must have sufficient corrosion resistance with regards to the stored media. If necessary, designs in special stainless steel quality should be selected.

Data Necessary for Specification

Maximum rainfall to be drained off (m³/h or CFH)
Material of floating roof
Connection size of the floating roof drainage system Installation de drainage de toit flottant A floating roof drainage system is mounted in tank systems with floating roofs and is equipped with a roof drain valve and a pipe system with several joints. DN (mm or inches)
Design of floating roof drainage system

Flange connection type

In type PROTEGO® D/SR the housing Corps A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. bottom is equipped with a loose flange with threaded holes according to EN 1092-1 or DIN DIN 2501, PN 16, or optionally according to any other international standard.

In the standard model of PROTEGO® D/SR-W the housing is equipped with a lateral flange connection to EN 1092-1 or DIN2501, PN 16. Optionally, the connecting flanges can be made according to any other international standard. An additional flange connection is available.

Selection and Design

The specified maximum rainfall is required to determine the required nominal size Diamètre nominal 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. . Alternatively, the connection size of the roof drain valve corresponds with the existing nominal dimension of the floating roof drainage system. Roof drain valves with 2 or 3 non-return valves are available as an option.

Design Types and Specifications

Two designs are available:
Roof drain valve with vertical connectionD/SR
Roof drain valve with horizontal connectionD/SR-W

As an option a special design of the roof drain valve is available with protection against unauthorized closing of the quick-action shut-off (S).

PROTEGO® roof drain valve type D/SR in combination with Floating roof drainage system PROTEGO® SE/CK

PROTEGO® roof drain valve type D/SR-W in combination with Floating roof drainage system PROTEGO® SE/K.

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