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Reflux 919 Control Diaphragm Valve
Brand: Pietro Fiorentini S.p.A.Reflux 919 by Pietro Fiorentini is a control diaphragm valve especially designed for natural gas or other preliminarily filtered non-corrosive gases. It may be supplied in the direct-action (air to close), or in the reverse action type (air to open).
This device is mainly used in high-pressure transmission systems and in medium pressure gas distribution networks.
Features- Design pressure: up to 102 bar
- Design temperature: from -20° to 60° C
- Rangeability: up to 1:1000
- Sizes DN: up to 10″
- Flanges: ANSI 150, 300 and 600 according to ASME B16.5 and PN 16 according to EN 1092
- End to end dimensions: according to EN 334
- Options: in built monitor, silencer, slam-shut
Specifications
Brand
Design Pressure
- Up to 100 bar
Design Temperature
- -20° to 60° C
Body Material
- ASTM A216 WCB
Material of Construction
- Seat Ring: Vulcanized Nitril TN040
- Valve Stem: AISI 416
- Piston: Carbon Steel
- Seal: Viton