KLEP
Straight Through KB Diaphragm Valve
The KLEP Straight Through Diaphragm valve consists of the valve body and a diaphragm. The valves close mechanically via a compressor, which is located above the diaphragm. These valves are well suited for on/off throttling control applications, involving slurries, powders, liquids, granulated materials and applications where scale build-up is a problem.
Product features
Specifications
| Size range: | 25mm – 350mm. |
|---|---|
| Valve type: | Straight through |
| Elastomer diaphragm: | Gum Rubber, Red Rubber, EPDM Butyl, Chlorobutyl, Neoprene, PtFE Polyurethane, Vitron & Hupalon. |
| Valve internals: | 304 Stainless steel spindles, rubber diaphragm |
| Temperature range: | -50°C to + 140°C |
| Pressure rating: | Up to 240 psi (16 bar) |
| Body material: | Cast aluminium, cast SG iron |
| Body lining: | As per Elastomer diaphragm |
| Flanged body: | Drilled to SABS, ANSI, BS or DIN |
| Hydro-static test: | 1.5 Times the rated pressure |
Features
- 100% drip tight closure even with solids in the medium.
- 240 PSI (16 Bar)
- All types of actuators can be fitted.
- Fast easy diaphragm change.
- Flexible re-inforced diaphragm.
- Full bore, low friction loss.
- Lifting lugs.
- Lightweight.
- Long operating life.
- No glands which require adjustment.
- Open/Closed indicator cover.
- Replaceable rubber diaphragm and body lining.
- Rising or Non-Rising spindle.
- Seals in both directions.
- Single wearing part.
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.
| Nominal Bore (mm) | A | B | C | Weight (kg) |
|---|---|---|---|---|
| 25 | 127 | 121 | 100 | 5 |
| 32 | 146 | 121 | 100 | 10 |
| 40 | 159 | 121 | 100 | 12 |
| 50 | 191 | 181 | 100 | 15 |
| 65 | 216 | 200 | 100 | 20 |
| 80 | 254 | 245 | 300 | 30 |
| 100 | 305 | 267 | 300 | 40 |
| 125 | 356 | 305 | 300 | 50 |
| 150 | 400 | 375 | 500 | 70 |
| 200 | 521 | 410 | 500 | 120 |
| 250 | 635 | 559 | 500 | 170 |
| 300 | 749 | 635 | 600 | 420 |
| 350 | 980 | 664 | 600 | 500 |
| Part | Description | |
|---|---|---|
| 1 | Body/Bonnet | Cast aluminium or SG iron |
| 2 | Diaphragm | Rubber or urethane |
| 3 | Valve Body Lining | Rubber, urethane, halar or ceramic |
| 4 | Bolts and Nuts | Cadmium plated steel |
| 5 | Paint | Epoxy powder coated, Rilsan lined or painted to custom spec |
| 6 | Hand wheel | Cast SG iron |
| 7 | Rev Nut | Brass |
Valve Diaphragm
| Grade | Material | Colour | Shore Hardness | Temp °C |
|---|---|---|---|---|
| NA | Natural rubber | White | 65 – 75 | -30° to 80° |
| Ni | Nitrile rubber | Yellow | 65 – 75 | -30° to 80° |
| BY | Butyl | Blue | 60 – 70 | -25° to 95° |
| NE | Neoprene | Red | 60 – 70 | -25° to 120° |
| HY | Hypalon | Green | 60 – 70 | -15° to 100° |
| V | Viton | Pink | 70 – 80 | -5° to 150° |
| PU | Polyurethane | Black | 80 – 90 | -5° to 80° |