AVK GATE VALVE, FLANGED, BS STD, PN25
BS 5163/EN558 ser.3, ductile iron, SS 316 stem, A4 bolts, 300µm FBE coating, DN50-400
Contact
AVK Saudi Valves
Jeddah Industrial City, Phase 4, Street no 45 P.O. Box 10830, 21443 Jeddah 24/7 Leakage Repair Service +966 50 595 5166
Resilient seat PN25 gate valve to BS standard with replaceable stem seal, high grade stainless steel bolts/stem and 300µm epoxy coating. For drinking water and other neutral liquids to max. 70°C
AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK’s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability.
| Variant 21/60-008 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN50 - DN400 |
| PN: | PN 25 |
| Closing direction: | Clockwise to Close |
Features
- Fixed, integral wedge nut prevents vibration and ensures durability
- Wedge fully vulcanized with drinking water approved EPDM rubber
- Wedge shoes in PA and guide rails on the body make the wedge slide easily up and down, even with high differential pressure
- Designed for heavy duty BS EN1074-2, type B
- A large conical stem hole going all the way through the wedge ensures circulation and prevents stagnant water
- AISI 316 stainless steel stem with rolled threads for high strength
- Full circle thrust collar keeps the stem firmly lined up and ensures low operating torque
- Triple safety stem seal with an NBR wiper ring outermost to protect against contamination from outside, in the middle two O-rings around the replaceable radial bearing and innermost an O-ring is the main seal to the system pressure
- Bonnet gasket in EPDM with a circular cross-section and fixed in a recess to avoid blow-out
- Counterbored A4 stainless steel bonnet bolts, sealed with hot-melt and encircled by the bonnet gasket
- Full bore
- Fusion bonded epoxy coating, 300µm, to DIN 3476
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
L mm |
H mm |
W mm |
F mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|
| 21-050-60-0761310 | 50 | 178 | 279 | 165 | 19 | 17 |
| 21-080-60-0741310 | 80 | 203 | 200 | 18 | ||
| 21-100-60-0741310 | 100 | 229 | 235 | 29 | ||
| 21-150-60-0741310 | 150 | 267 | 300 | 53 | ||
| 21-200-60-0741310 | 200 | 292 | 360 | 86 | ||
| 21-250-60-0761310 | 250 | 330 | 614 | 425 | 27 | 140 |
| 21-400-60-0761310 | 400 | 406 | 867 | 620 | 32 | 320 |
Components
| 1. | Body | Ductile iron EN GJS-500-7 |
| 2. | Wedge core | Ductile iron EN GJS-500-7 |
| 3. | Wedge rubber | EPDM rubber |
| 4. | Wedge nut | Brass DZR CW602N |
| 5. | Stem | Stainless steel 316 |
| 6. | Bonnet bolt | Stainless steel A4 |
| 7. | Bonnet gasket | EPDM rubber |
| 8. | Bonnet | Ductile iron EN GJS-500-7 |
| 9. | Seal | Hot melt glue |
| 10. | O-ring | NBR rubber |
| 11. | Thrust collar | Brass DZR CW602N |
| 12. | O-ring | NBR rubber |
| 13. | Gland flange | Ductile iron EN GJS-500-7 |
| 14. | Radial bearing | Polyamide |
| 15. | O-ring | NBR rubber |
| 16. | Wiper ring | NBR rubber |
| 17. | Gland flange bolt | Stainless steel A4 |
Test/Approvals
- Seat: 1.1 x PN (in bar), Body: 1.5 x PN (in bar). Operation torque test
- WRAS approved materials
- Approved by SASO
Standards
- Designed according to EN 1074 - 2 Annex B (BS5163/Type B)
- Face to face according to EN 558 Table 2 Basic Series 3
- Standard flange drilling to EN1092-2 (ISO 7005-2), PN 25
