Description
FEATURES
- High fl ow due to angled seat design
- Anti-waterhammer design (fl uid entry under the disc)
- Vacuum operation up to 10-2 mbar
- Wide range of piston-type operators (32 – 50- 63 – 90 -125 mm dia.) rotatable through 360°, for maximum performance at different minimum pilot pressures
- High performance, maintenance-free stuffi ng box
- The valves satisfy Pressure Equipment Directive 97/23/EC, category 1 (DN > 25) or article 3.3 (DN ≤ 25)
MATERIALS IN CONTACT WITH FLUID
(✴) Ensure that the compatibility of the fl uids in contact with the materials is verifi ed
| Bronze body | Stainless steel body | |
| Valve body | Bronze | AISI 316L |
| Stuffi ng box housing | Brass | AISI 316L |
| Stem | Stainless steel | Stainless steel |
| Disc | Brass | Stainless steel |
| Stuffi ng box packing | PTFE chevrons | PTFE chevrons |
| Wiper seal | FPM | FPM |
| Disc seal | PTFE | PTFE |
| Valve body seal | PTFE | PTFE |
OTHER MATERIALS
| Operator | Glass fi bre fi lled PA |
| Optical position indicator | PA 12, supplied standard on valves with 63, 90 and 125 mm operators |
