AVK Resilient Seated Gate Valve PN10/16
For Harsh Environments
Mamoun Humayra
Water Product Manager
Flanged resilient seated gate valve for water and waste water. Temperature range: -10° C to +70° C. Max 10% solid matter. Insulation essential for temperatures of 0° C and below. Maximum Working Pressure: 16 bar (1.6 MPa).
The 21/58 is a resilient seated, wedge gate valve for isolation purposes. This version has been developed for application in harsh environments or salt laden atmosphere and ground conditions. 300μm coating.
| Variant 21/58-001 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN50 - DN300 |
| PN: | PN 16 |
Features
- Cap top as standard.
- The ductile iron wedge, fully vulcanized with EPDM rubber.
- O-ring stem seals replaceable under pressure.
- Fully corrosion resistant construction.
- Blue fusion bonded epoxy coating, in accordance with WIS 4-52-01. Class A 300μm.
- Body, bonnet and gland bolts sealed with hot melt.
- Clock wise to close or clock wise to open version
- WRAS approved.
- Lifting bars.
- For an ISO flange gland version for gearbox and actuator mounting see 21/78.
- Embodied carbon data available upon request
Safety Note:
The valves now accomodate lifting bars for the safe handling of valves. These lifting bars are rated to the weight of the bare valve and stem cap (where fitted) only and should not be utilised if the valve is fitted with pipe, mechanical pipe joints, gearboxes, actuators or any other external fitment. AVK will not accept any responsibility for loss or damage if the lifting bars are not used in strict accordance with this guidance.
Downloads
Reference nos. and dimensions:
| Ref. no. | DN mm |
L mm |
H mm |
D mm |
Dh mm |
Operating Direction |
Flange drillling |
Ds mm |
Bolt No. |
F1 mm |
Theoretical weight/kg |
Turns to open |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21-050-58-2141358 | 50 | 178 | 326 | 165 | 125 | CTC | PN10/16 | 18 | 4 | 19 | 14 | 5 |
| 21-050-58-3141358 | 50 | 178 | 326 | 165 | 125 | CTO | PN10/16 | 18 | 4 | 19 | 14 | 5 |
| 21-080-58-2141358 | 80 | 203 | 339 | 200 | 160 | CTC | PN10/16 | 18 | 8 | 19 | 17 | 7 |
| 21-080-58-3141358 | 80 | 203 | 339 | 200 | 160 | CTO | PN10/16 | 18 | 8 | 19 | 17 | 7 |
| 21-100-58-2141358 | 100 | 229 | 371 | 220 | 180 | CTC | PN10/16 | 18 | 8 | 19 | 24 | 9 |
| 21-100-58-3141358 | 100 | 229 | 371 | 220 | 180 | CTO | PN10/16 | 18 | 8 | 19 | 24 | 9 |
| 21-150-58-2141358 | 150 | 267 | 503 | 285 | 240 | CTC | PN10/16 | 22 | 8 | 24 | 42 | 13 |
| 21-150-58-3141358 | 150 | 267 | 503 | 285 | 240 | CTO | PN10/16 | 22 | 8 | 24 | 42 | 13 |
| 21-200-58-2141358 | 200 | 292 | 592 | 340 | 295 | CTC | PN16 | 22 | 12 | 27 | 59 | 17 |
| 21-200-58-3141358 | 200 | 292 | 592 | 340 | 295 | CTO | PN16 | 22 | 12 | 27 | 59 | 17 |
| 21-250-58-2141358 | 250 | 330 | 680 | 405 | 355 | CTC | PN16 | 26 | 12 | 27 | 85 | 22 |
| 21-250-58-3141358 | 250 | 330 | 680 | 405 | 355 | CTO | PN16 | 26 | 12 | 27 | 85 | 22 |
| 21-300-58-2141358 | 300 | 356 | 758 | 460 | 410 | CTC | PN16 | 26 | 12 | 27 | 123 | 26 |
| 21-300-58-3141358 | 300 | 356 | 758 | 460 | 410 | CTO | PN16 | 26 | 12 | 27 | 123 | 26 |
Components
| 1. | Stem Cap | Grey iron |
| 2. | Stem | Stainless steel 1.4404 |
| 3. | Gland Flange Assembly | Ductile iron GJS-500-7 (GGG-50), With stainless steel seat |
| 4. | Thrust collar | DZR brass |
| 5. | Bonnet | Ductile Iron GJS-500-7 |
| 6. | Bonnet bolt | Stainless steel A4 |
| 7. | Seal | EPDM |
| 8. | Body | Ductile Iron GJS-500-7 |
| 9. | Wedge | EPDM encaps. duct. iron |
Test/Approvals
- Hydraulic test according to EN 1074-1 and 2 / EN 12266.
- Approved according to WRAS
- Drinking Water Inspectorate Regulation 31 compliant
Standards
- Designed according to BS5163/B, Designed according to BS EN 1074 -1 and 2
- Face to face according to EN 558 Table 2 Basic Series 3
