D/SR, D/SR-W
Roof Drain Valves
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.
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.
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.
