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Control Diaphram Valves
Reflux 919
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Information
Reflux 919
Overview

Reflux 919 by Pietro Fiorentini is a control diaphragm valve specifically designed for natural gas or other preliminarily filtered non-corrosive gases applications. It can be supplied as direct-action (air to close) or reverse action (air to open) configuration..

This device is mainly used in high-pressure transmission systems and in medium pressure gas distribution networks.


Teknik Bilgi
Documentation
Features


Design pressure:

Ambient temperature:

Inlet gas temperature range:

Inlet pressure range bpu (MAOP):

Range of downstream pressure when in pressure control mode:

Pneumatic control loop input(applicable to pneumatic positioner option):


Electric control loop(applicable for electro-pneumatic positioner option):

Available Accessories:

Nominal dimensions DN:


Connections:
Values


up to 10.2 MPa up to 102 barg

from -20 °C to +60 °C from -4 °F to +140 °F

from -20 °C to +60 °C from -4 °F to +140 °F

from 0.1 to 10.0 MPa from 1 to 100 barg

from 0.05 to 9.5 MPa from 0.5 to 95 barg

from 0.021 to 0.103 MPa or from 0.042 to 0.206 MPa from 3 to 15 psig or from 6 to 30 psig

4 ÷ 20 mA

DB/819 Silencer, PM/819 Monitor, SB/82 Slam shut, HB/97 Slam shut

DN 25 / 1”; DN 50 / 2”; DN 80 / 3”; DN 100 / 4”; DN 150 / 6”; DN 200 / 8”; DN 250 / 10”;

Class 150, 300, 600 RF or RTJ according to ASME B16.5 and PN16 according to ISO 7005
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