Dival-SQD
16Pages

■ Dival-SQD Pressure regulator with cartridge filters

Classification and Area of Application The Dival-SQD is a downstream pressure regulator, self actuated, spring loaded for medium and low pressure applications it equipped with incorporated relief valve against temporary overpressure. Its innovative feature is represented by the particular geometry of the valve body. This allowed creating a regulator that can be integrated with a high flow rate and low pressure loss cartridge filter. This construction concept allows creating pressure reduction assemblies, to be mounted within a cabinet or even to “on board of the machine”, having extremely...

Pietro Fiorentini Features Functional features: ■ Maximum inlet pressure pu max: ■ Maximum allowable pressure PS: ■ Specific maximum allowable pressure (actuator casing) PSD: (only for SQD2 - SQD6) ■ Outlet range pressure pd: ■ Accuracy class AC: ■ Look-up pressure class SG: ■ Minimum ambient temperature: ■ Maximum ambient temperature: ■ Inlet gas temperature: Design features:: ■ Nominal dimensions DN inlet: ■ Nominal dimensions DN outlet: ■ Flanged connections: 6 bar 6 bar 0,5 bar From 10 to 300 mbar Up to 5 Up to 10 Execution up -30°C +60°C (higher values on request). Up to -10°C + 60°C...

The project of Dival-SQD regulator has been designed with a high degree of modularity that allows to incorporate, within the basic regulator, alternative devices and additional accessories. Slam shut device model LA/... It is a Safety Accessory whose task is that of blocking the gas flow if abnormal pressure conditions appear, compared to the one set during calibration of the dedicated pressure switch. The calibration can be varied in, according to the operating needs, in the fields referred to in the table N.2 below, according to the model of pressure switch forecast. There are two...

Pietro Fiorentini Cartridge Filter The regulators Dival-SQD are arranged to mount a high flow rate capacity cartridge filter with low pressure loss; the cartridge is of synthetic type with 5 microns filtration. For Dival-SQD 1-2 models, the filter body is integrated in the pressure reduction unit body, allowing for considerable advantages in terms of size and ease of installation. For the model Dival- SQD 6, the filter consists of a containing body in spheroidal cast iron, which is integrated in the regulator by means of a special flanged coupling. All filters are characterized by a great...

Cartridge filter All filters version are equipped with: ¢ Connections for the installation of a pressure gauge for measuring the inlet pressure (A) ¢ Connections for the installation of a differential pressure indicator (B) ¢ Drain valve (C)

Control heads The regulated outlet pressure range is determined by the control head installed. The table below sums up the heads available for every size and the ranges of outlet pressure expressed in mbar. Pressure regulator DIVAL-SQD 1BP DIVAL-SQD 1MP DIVAL-SQD 2 DIVAL-SQD 6 Sizing of pressure Regulator In general, the choice of a regulator is made based on the calculation of the flow rate determined by the use of formulas and on the flow rate coefficients (Cg or KG) as indicated by the EN 334 standard. However, the analytical method of calculation is not suitable for a correct sizing of...

For operating conditions and dimensions not covered by the tables above please contact our customer care. For different gases and for natural gas with a different density than 0,61shall be applied the correction coefficients resulting from the following formula: The chart show the correction factors FC valid for above mentioned gas at15 °C and the relative density declared..

Typical connection diagrams The following examples are provided as a recommendation to get the best performance from the regulator DIVAL-SQD. Dival-SQD 1: only with internal sensing line Pressure gauge Pressure gauge Vent ON/OFF valve ON/OFF valve Inlet pressure Outlet pressure

Pressure gauge Sensing line Pressure gauge Vent ON/OFF valve ON/OFF valve DN Inlet pressure Outlet pressure

Pressure gauge Sensing line Pressure gauge Vent ON/OFF valve ON/OFF valve DN Inlet pressure Outlet pressure

Regulator with slam shuth

Pietro Fiorentini Dimensions Dival-SQD 2 Dimensions in mm Regulator with slam shuth 21

Regulator with slam shuth 18

Pietro Fiorentini Dimensions Dival-SQD 6 + filter serie 51301F4 Regulator with slam shuth 18+24

The data are not binding. We reserve the right to make eventual changes without prior notice. QR code generated on http://qrcode.littleidiot.be