KLEP
Weir Type STAINLESS STEEL Diaphragm Valve
The Weir Type Stainless Steel Diaphragm valve is special for controlling the non corrosive or the strong corrosive media. The body’s inner surface is unlined or lined with different fluorine plastics which can be selected to suit with different working temperatures and fluid pipelines.
Product features
Specifications
| Size range: | 50mm – 350mm. |
|---|---|
| Valve type: | Rising and non-rising spindle. |
| Elastomer diaphragm: | Fluorine plastic |
| Valve internals: | 304 Stainless steel spindles, rubber diaphragm |
| Temperature range: | 85°C to + 150°C |
| Pressure rating: | PN0.6; PN1.0; PN1.6 |
| Body material: | Stainless Steel |
| Body lining: | Unlined, Fluorine Plastic |
| Flanged body: | Drilled to SABS, ANSI, BS or DIN |
| Hydro-static test: | 1.5 Times the rated pressure |
Features
- Valve can be installed in any position.
- Housing acts as a built in indicator.
- Long operating life.
- Full bore, low friction loss.
- 100% drip tight closure even with solids in the medium.
- Lightweight.
- Seals in both directions.
- High flexible diaphragm designed to reduce closing forces & improved full open recovery.
- Enclosed body protects diaphragm from the environment and contaminants in the event of diaphragm failure.
- Fast easy diaphragm change.
- Single wearing part.
- No gland which requires adjustment.
- Pneumatic & hydraulic options.
- Ideal for remote locations.
How the valve operates
As the valve cycles downwards, the compressor will start to compress the soft rubber diaphragm, from the top of the valve only, therefore achieving 100% drip tight closure, even with solids in the medium.
Applications
The valve is suited for mining and mineral processing, power generation, sand/gravel, chemical & soda ash, pulp & paper, environmental & effluent, dry feeds and powders.
Actuators
All types of Actuators can be fitted; Electric, Gearbox, Hydraulic, Pneumatic and Handwheel.
Dimensions and Weights
Dimensions and weights are for guidance only – detailed dimension drawings are available on request.
All dimensions are in millimetres, unless otherwise stated.
| Valve size | Nominal Pressure | Working Pressure | L | D | D1 | n-⌀d | f | H1 | H2 | D0 | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|
| (DN) | MPa | MPa | mm | mm | mm | mm | A | B | C | Steel | kg/kilos |
| 15 | 1.6 | 1.6 | 108 | 95 | 65 | 4-14 | 2 | 90 | 99 | 66 | 2 |
| 20 | 117 | 105 | 75 | 4-14 | 2 | 93 | 103 | 66 | 3 | ||
| 25 | 127 | 115 | 85 | 4-14 | 2 | 100 | 112 | 66 | 4 | ||
| 32 | 146 | 140 | 100 | 4-18 | 2 | 127 | 144 | 96 | 6.5 | ||
| 40 | 159 | 150 | 110 | 4-18 | 2 | 136 | 156 | 96 | 7.5 | ||
| 50 | 190 | 165 | 125 | 4-18 | 2 | 151 | 177 | 118 | 10 | ||
| 65 | 1.0 | 1.0 | 216 | 185 | 145 | 4-18 | 2 | 183 | 213 | 165 | 16 |
| 80 | 254 | 200 | 160 | 8-18 | 2 | 198 | 273 | 230 | 23.5 | ||
| 100 | 305 | 220 | 180 | 8-18 | 2 | 266 | 320 | 280 | 34 | ||
| 125 | 356 | 250 | 210 | 8-18 | 3 | 319 | 386 | 280 | 44 | ||
| 150 | 406 | 285 | 240 | 8-22 | 3 | 380 | 453 | 368 | 67.5 | ||
| 200 | 0.6 | 521 | 340 | 295 | 8-22 | 3 | 506 | 626 | 400 | 141.5 | |
| 250 | 635 | 395 | 350 | 12-22 | 5 | 598 | 734 | 500 | 229 | ||
| 300 | 0.4 | 749 | 445 | 400 | 12-22 | 5 | 698 | 778 | 560 | 321 | |
| 350 | 787 | 505 | 460 | 16-22 | 5 | 723 | 883 | 560 | 360 | ||
| 400 | 0.25 | 914 | 565 | 515 | 16-26 | 5 | 868 | 1078 | 640 | 584 |