D/SR, D/SR-W

Name: D/SR, D/SR-W
Brand: PROTEGO
SKU: product3288359250418

Roof Drain Valves

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Features

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

Function and 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 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 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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Product Data

Dimensions D/SR-W

DN	80 / 3''	100 / 4''	150 / 6''
a	550 / 21.65	600 / 23.62	650 / 25.59
b	490 / 19.29	540 / 21.26	590 / 23.23
c	450 / 17.72	500 / 19.69	550 / 21.65
d	205 / 8.07	250 / 9.84	320 / 12.6
e	490 / 19.29	490 / 19.29	490 / 19.29
f	285 / 11.22	320 / 12.6	350 / 13.78
g	150 / 5.91	180 / 7.09	225 / 8.86

Dimensions in mm / inches

Dimensions D/SR

DN	80 / 3"	100 / 4"	150 / 6"
a	550 / 21.65	600 / 23.62	650 / 25.59
b	490 / 19.29	540 / 21.26	590 / 23.23
c	450 / 17.72	500 / 19.69	550 / 21.65
d	240 / 9.45	280 / 11.02	330 / 12.99
e	490 / 19.29	490 / 19.29	490 / 19.29
f	160 / 6.3	180 / 7.09	240 / 9.45
g	200 / 7.87	220 / 8.66	285 / 11.22

Dimensions in mm / inches

Material selection

Design	A	B
Housing	Steel	Stainless Steel
Non-return valve	Red Brass	Red Brass
Valve disc	Steel	Stainless Steel
Quick-action shut-off	Steel	Stainless Steel
Gasket	PUR	PUR

The device 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 DN (mm or inches)
Design of floating roof drainage system

Flange connection type

In type PROTEGO^® D/SR the housing 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. 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.