Dival 700
20Pages

Pressure regulators Introduction DIVAL 700 series pressure regulators are direct acting devices for low and medium pressure applications controlled by a diaphragm and counter spring. These regulators are suitable for use with previously filtered, non corrosive gases. 3 ways body Dival

Main Features Modular design of pressure regulator DIVAL 700 series allows the installation of an incorporated of slam shut on the same body without changing the face-to-face dimension. Furthermore the truly “top entry design” allows an easy periodical maintenance without removing body from the line. DIVAL 700 series regulators have features that make it particulary suitable for applications in process where sudden rate variations may occur (for example, applications on industrial burners with considerable sudden flow rate changes). DIVAL 700 series is designed to working with internal...

Main Features -Design pressure: up to 20 bar (290 Psi) -Design temperature: -20 °C to +60 °C (-4 to + 140 °F) -Ambient temperature: -20 °C to +60 °C (-4 to + 140 °F) -Max inlet pressure Pu: according to table here below Seat (Inches) 1/4" 3/8" 1/2" 3/4" 1" 1"1/4 -Outlet pressure range of Wds: 5 to 1454 mbar (2"w.c. to 21psig) -Available size DN: 1" (25) - 1"1/2 (40) - 2"(50) -Flanging: class PN 16/25 according to ISO 7005-1, ISO 7005-2; class ANSI 150RF according to ANSI B16.5, ASME B16.42 and class ANSI 125 FF according to ASME B16.1 -Threaded connections: DN 2" Rp ISO 7-1 or DN 2"NPTF...

Table 1: Spring range data Inlet pressure = 1,7 barInlet pressure = 3,4 bar SPRING (dimension and color)

Table 2: Outlet pressure change (mbarg) as result of a 0,5 Barg Inlet Pressure Change

The flow rate values indicated on the following tables are valid for natural gas having a relative density of 0.61 w.r.t. air and a regulator inlet temperature of 15 °C (59°F). For gases having a different relative density S and temperature t in °C, the value of the flow rate, calculated as above, shall be multiplied by a correction factor, as follows: Table 3 lists the correction factors Fc for a number of gases at 15 °C (59°F). Control Heads Table 3: Correction factors FC Type of gas Relative density Fc Factor Outlet pressure range is determined by the control head installed. The control...

Capacity TablesDIVAL SERIES 700 OUTLET PRESSURE mbar (Pd) Flow with accuracy class AC 20

DIVAL SERIES 700 DN 25 - 1 OUTLET PRESSURE mbar (Pd) Flow with accuracy class AC 20

Capacity TablesDIVAL SERIES 700 OUTLET PRESSURE mbar (Pd) Flow with accuracy class AC 20

DIVAL SERIES 700 DN 40 - 1"1/2 OUTLET PRESSURE mbar (Pd) Flow with accuracy class AC 20

Capacity TablesDIVAL SERIES 700 OUTLET PRESSURE mbar (Pd) Flow with accuracy class AC 20

DIVAL SERIES 700 DN 50 - 2 OUTLET PRESSURE mbar (Pd) Flow with accuracy class AC 20

Slam-Shut Valve This is a device which stops immediately gas flow when, whenever downstream pressure exeeds given set-point. Device can be actuated also manually. Incorporated LA/... Slam-Shut Slam shut (see figure 3) can be incorporated on the standard regulator and on the in-line monitor. The regulator with the incorporated slam-shut has flow rate value equal to the basic regulator. A further advantage of the incorporated slam-shut valve is that it can be retro fitted at any time on a previously installed Dival 700 series without modifying the regulating unit (only with 4 ways body)....

Incorporated Relief Valve To avoid that small leak when there is no flow required or that sudden and of temporary overpressures such as deriving from rapid switching or overheating of the gas cause intervention of the slam shut, the DIVAL 700 it is possible to activate an incorporated relief valve (SBV). Dival 700 series functioning as Monitor The monitor is an emergency regulator which comes into operation in place of the main regulator if, in the event of failure, the latter allows the downstream pressure to reach the monitor set-point. For installation of inline monitor refer to figure...

Pressure regulators Possible installation schemes DIVAL SERIES 700 + LA/...

DILOCK 108 + DIVAL SERIES 700 DILOCK 108 + DIVAL SERIES 700 + LA/...

Pressure regulators DIVAL SERIES 700 + LA/... + Dival 700 Inlet pressure Outlet pressure

S Overal dimensions in mm Tipe Dival 700 Dival 700 Dival 700 Dival 700 Weights in Kgf Tipe Dival 700 Dival 700 Dival 700 Dival 700 Face to face dimensions S according to EN 334 and IEC 534-3 Dival with slam-shut LA/... 16 18 21 19

Pietro Fiorentini □□ □□□□□ □ □□□□ □□□□ □ □ □ □□□□ □ □□ □ □ □□□□ □ □□ □ □□□□ □□ □ □□□□□ □□□□ □ □ Pietro Fiorentini S.p.A. via E.Fermi 8/10 I-36057 Arcugnano (VI) Italy Tel. +39 0444 968.511 Fax. +39 0444 960.468 www.fiorentini.com The data are not binding. We reserve the right to make eventual cheanges without prior notice.