KARX - Combination Kinetic Air Release Valve
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN25 to DN300
- Pressure Class
- PN10, PN16, PN25
- End connection
- Threaded · Flanged
- Operating temperature
- -10°C to 80°C
Standards
- Design & manufacture
- BS EN 1074-4, AWWA C512
- Face to face
- BS EN 558
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
- Float
- Seals
Pressure-temperature rating
Maximum working pressure at each temperature, per pressure class.
| Class | Pressure | Min temp | Max temp |
|---|---|---|---|
| PN16 (threaded) | 16 bar | -10°C | 80°C |
| PN25 (flanged, DN50-DN200) | 25 bar | -10°C | 80°C |
Dimensions per size(26 sizes)
| Size | ØA (BSP) | C (mm) | H (mm) | ØB (mm) | ØD (mm) | ØK (mm) | N-Ød (mm) | Weight |
|---|---|---|---|---|---|---|---|---|
| DN25 (threaded) | G1" | 20 | 243 | - | - | - | - | — |
| DN32 (threaded) | G1 1/4" | 20 | 243 | - | - | - | - | — |
| DN40 (threaded) | G1 1/2" | 20 | 243 | - | - | - | - | — |
| DN50 (threaded) | G2" | 20 | 243 | - | - | - | - | — |
| DN50 PN10 | - | - | 280 | 99 | 165 | 125 | 4-Ø19 | — |
| DN50 PN16 | - | - | 280 | 99 | 165 | 125 | 4-Ø19 | — |
| DN50 PN25 | - | - | 280 | 99 | 165 | 125 | 4-Ø19 | — |
| DN65 PN10 (reduced bore) | - | - | 284 | 118 | 185 | 145 | 4-Ø19 | — |
| DN65 PN16 (reduced bore) | - | - | 284 | 118 | 185 | 145 | 4-Ø19 | — |
| DN80 PN10 | - | - | 362 | 132 | 200 | 160 | 8-Ø19 | — |
| DN80 PN16 | - | - | 362 | 132 | 200 | 160 | 8-Ø19 | — |
| DN80 PN25 | - | - | 362 | 132 | 200 | 160 | 8-Ø19 | — |
| DN100 PN10 | - | - | 395 | 156 | 220 | 180 | 8-Ø19 | — |
| DN100 PN16 | - | - | 395 | 156 | 220 | 180 | 8-Ø19 | — |
| DN100 PN25 | - | - | 395 | 156 | 235 | 190 | 8-Ø23 | — |
| DN150 PN10 | - | - | 485 | 211 | 285 | 240 | 8-Ø23 | — |
| DN150 PN16 | - | - | 485 | 211 | 285 | 240 | 8-Ø23 | — |
| DN150 PN25 | - | - | 485 | 211 | 300 | 250 | 8-Ø28 | — |
| DN200 PN10 | - | - | 582 | 266 | 340 | 295 | 8-Ø23 | — |
| DN200 PN16 | - | - | 582 | 266 | 340 | 295 | 12-Ø23 | — |
| DN200 PN25 | - | - | 582 | 274 | 360 | 310 | 12-Ø28 | — |
| DN250 PN10 (reduced bore) | - | - | 602 | 319 | 405 | 350 | 12-Ø23 | — |
| DN250 PN16 (reduced bore) | - | - | 602 | 319 | 405 | 355 | 12-Ø28 | — |
| DN250 PN25 (reduced bore) | - | - | 602 | 330 | 425 | 370 | 12-Ø31 | — |
| DN300 PN10 | - | - | 750 | 370 | 460 | 400 | 12-Ø23 | — |
| DN300 PN16 | - | - | 750 | 370 | 460 | 410 | 12-Ø28 | — |
Operating media
Typical applications
- Large diameter transmission mains
- Raw water mains
- Rising mains
- Bulk water supply
Approvals
Features
- The KARX is a high-capacity combination air release valve designed for large diameter transmission mains where rapid venting of large air volumes is critical
- The oversized kinetic orifice minimises back pressure during filling, reducing pipe stress and fill times
- Continuous air release under pressure prevents air locking in rising mains and hilly pipeline profiles
Description
The KARX is a high-capacity combination air release valve designed for large diameter transmission mains where rapid venting of large air volumes is critical. The oversized kinetic orifice minimises back pressure during filling, reducing pipe stress and fill times. Continuous air release under pressure prevents air locking in rising mains and hilly pipeline profiles.
Selection notes
This air release valve is supplied for threaded and flanged installation.
Sizes run DN25 to DN300, in PN10, PN16, PN25.
The body is Ductile Iron EN GJS 500-7.
Stated service media include clean water.
It is catalogued for Water & Wastewater.
Working temperature is -10°C to 80°C.
Built to BS EN 1074-4, AWWA C512, BS EN 558 and BS EN 1092.
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
Smart find
Searches our product catalogue using your spec. Drop a spec sheet or parts list (PDF, Excel, CSV, Word or text, several at once), paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.Related Air Release Valves
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- Pressure
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- Standards
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Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.
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Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.
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Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.