The NABIC Fig 520 flanged valve has been designed primarily for use on unvented hot water Heating systems, where a high capacity, emergency steam relief capability is required.
All wetted parts are manufactured from dezincification resistance materials. Designed and tested to BS EN ISO 4126 -1.
Medium: Hot water, steam, compressed air and inert gasses, Co2 (to 20°C), ethylene glycol, potable water
Size Range: DN65 - DN100
Pressure: 0.4 - 12.5 bar
Material: Gunmetal
Temperature: -20 to 195°C
Connection: Flanged inlet & screwed outlet
Pipe Connections
Flanged inlet connections. Threaded female outlet connections, Rp (BSP) parallel to BS EN 10226-1. Most flange standards can be accommodated.
Testing
All valves are shell and seat tested (to confirm set pressure) before leaving the factory and all valves are supplied pre-set with a tamper proof seal. Pressure Test Certificate and Letters of Conformity available on request.
Product Extras
Materials
Ref No | Name of Part | Material |
---|---|---|
1 | Thrust Washer | Brass, BS EN 12164 CW609N |
2 | Grubscrew | Steel |
3 | Test Lever | Brass, BS EN 1982 CC754S |
4 | Spring | Chrome Vandium Alloy Steel, BS 2803 735 A50 HS (Stainless Steel, BS 2056 302S26 Opt) |
5 | Label | Yellow kapton |
6 | Spring Cover | Bronze, BS EN 1982 CC491K |
7 | Piston | Brass, BS EN 12164 CW609N |
8 | Diaphragm | Silicon Rubber |
9 | Seat Seal Holder | Bronze, BS EN 1982 CC491K / Brass BS EN 12164 CW602N (DZR) |
10 | Seat Seal | PTFE (Viton Opt) |
11 | Starlock Washer | Stainless Steel |
12 | Body | Bronze, BS EN 1982 CC491K |
13 | Lever Pin | Steel |
14 | Lead Seal | Lead |
15 | Adjusting Screw | Brass, BS EN 12164 CW609N |
16 | Spring Plate | Brass, BS EN 12164 CW609N |
17 | Spindle | Brass, BS EN 12164 CW721R |
18 | Seat Seal Retaining Plate | Bronze, BS EN 1982 CC491K / Brass BS EN 12164 CW602N (DZR) |
19 | O-Ring | Viton |
20 | Seat | Bronze, BS EN 1982 CC491K |
21 | Seat O-ring | Viton |
22 | Drain Plug | Brass, BS EN 12164 CW609N |
Dimensional Drawings
Dimensions & Weights
SIZE DN |
Inlet |
Ro BSP Outlet |
ØA |
B (mm) |
C (mm) |
D (mm) |
E (mm) |
RD |
---|---|---|---|---|---|---|---|---|
65 | Flange | 2" | 40 | 350 | 152 | 175 | 64 | 1/4" |
80 | Flange | 2 1/2" | 50 | 390 | 166 | 195 | 76 | 1/4" |
100 | Flange | 3" | 65 | 480 | 205 | 210 | 90 | 3/8" |
To order these products please call us on +44 (0)1462 443 278.
The reason I went to NABIC was because we have to meet certain water regulations. After a chat with Northumbrian Water, they suggested looking into NABIC products as they are WRAS approved and suitable to use on all potable water applications.
I went direct and bought 4 pipe interrupters with next day delivery, which have been installed in our on-site laboratory. My user experience was great and I liked the fact that site has all the necessary specifications and prices easily to hand.
Peter Bauckham - Managing Director, Argos Inspection