AVK GATE VALVE, FLANGED, OS&Y, UL/FM APPROVED, 250 PSI
Flanged gate valve with rising stem and hand wheel - UL/FM approved for fire protection applications to max. 70° C
AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized in a double bonding process with AVK’s own drinking water approved EPDM rubber compound which features a very low compression set resulting in an outstanding ability to regain the original shape after having been compressed. A replaceable stuffing box stem seal system, a high strength stem and a thorough corrosion protection safeguard the unmatched reliability.
變種 145/46-001 | |
---|---|
連接 | Flanged |
材料 | Ductile iron |
DN 範圍 | DN65 - DN200 |
PN類別 | ANSI CL150 |
關閉方向 | Clockwise to Close |
產品特點
- Wedge core in ductile iron, fully encapsulated in drinking water approved EPDM in a 2-step vulcanization process that leaves a very strong rubber-iron bond preventing corrosion underneath the rubber. No iron parts are exposed to the water
- Wedge shoes integrated in the rubber
- Stem in copper alloy C35330
- Gland follower for re-tightening the stem seal with two or three main O-rings
- Round bonnet gasket, fixed in a groove in the bonnet preventing it from being blown out in pressure surges
- Counterbored and hot melt sealed bonnet bolts in stainless steel, encircled by the bonnet gasket preventing contact with the water
- Full bore and clear way
- Low operating torque
- Fusion bonded epoxy coating, RAL 3000, acc. to DIN 3476
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組件
1. | Stem nut | Brass DZR |
2. | Handwheel | Ductile Iron |
3. | Anti-friction washer | Copper alloy |
4. | Yoke | Ductile iron GJS-500-7 (GGG-50) |
5. | Stem | Brass DZR C35330 (CW602N) |
6. | Bolt | Stainless steel A2 |
7. | Washer | Stainless steel A2 |
8. | Gland follower | Ductile iron GJS-500-7 (GGG-50) |
9. | Stem seal | NBR rubber |
10. | Bonnet gasket | NBR rubber |
11. | O-ring | NBR rubber |
12. | Body | Ductile iron GJS-500-7 (GGG-50) |
13. | Pin | Stainless steel |
14. | Wedge nut | Brass DZR CW626N |
15. | Wedge core | Ductile iron GJS-500-7 (GGG-50) |
16. | Wedge rubber | EPDM rubber |
17. | Bonnet bolt | Stainless steel A2 |
18. | Wedge shoe | Polyamide |
19. | Nut | Stainless steel A2 |
批准
- Hydraulic tests according to FM and UL Standards
- Seat 375 psi, shell 500 psi, closing torque test, full travel operational test.
- FM Approved, UL listed
標準
- FM 1120/1130, UL 262
- Face-to-face dimension according to ANSI B16.10
- Flange drilling to ANSI class 150.
