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Classification and Area of Application
The Dival-SQD is a downstream pressure regulator, self actuated, spring loaded for medium and low pressure ap-plications 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 reduced overall dimensions, compared to the conventional groups assembled in a conventional manner. It allows remarkable savings in the assembly installation, in terms of development of the connection pipes, bends and special pieces, as well as in terms of a smaller number of man-hours needed for assembly operations.
Maximum inlet pressure
Range of downstream pressure:
From 10 to 300 mbar
Accuracy class AC
Up to 5
Look-up pressure class SG
Up to 10
Minimum ambient temperature
Execution up -30°C
Maximum ambient temperature
+60°C (higher values on request).
Inlet gas temperature
Up to -10°C + 60°C (standard execution) -20°C + 60°C (on request)
Nominal dimensions DN inlet:
Dival-SQD 1: 40 (1”1/2”)
Dival-SQD 2: 50 (2”)
Dival-SQD 6: 50 (2”)
Nominal dimensions DN outlet:
Dival-SQD 1: 40 (1”1/2”)
ival-SQD 2: 50 (2”)
Dival-SQD 6: 80 (3”)
UNI PN 16; ANSI 150 RF
Spheroidal ductile iron GS 400 – 18 ISO 1083.
Rubberized canvas (performed by hot-pressing process).
Standard execution, zinc-plated carbon steel according to DIN 2353;
A Better Solution
It is suitable for gaseous, non-corrosive, previously filtered fluids, and it is characterized by a quick reaction to changes in the operating conditions. Therefore, it is particularly suitable for use serving ON/OFF burners and in any industrial processes characterized by quick changes in the flow rate. The constant regulated pressure and its accuracy, even in presence of significant variations of the upstream pressure and/or flow rate, make the Dival-SQD regulator also particularly suitable in distribution networks for civil use.
The Dival-SQD,regulator, in its basic version, is classified according to the European standard EN 334, as a regulator which reacts in opening (Fail to Open). It is Truly a TOP ENTRY design, which confers to the regulator management advantages, for example the ability to performs full maintenance without uninstalling it from the connection pipe.
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 available models: LA/BP and LA/MP, the accuracy class of the block device is up to AG up to 5. The slam shut device is equipped with a button for local manual control of the block operation. The slam shut valve can be calibrated for pressure increase, over pressure shut off (OPSO) and/or for pressure drop, under pressure shut off (UPSO). The two intervention modes can be tuned independently, using the dedicated calibration springs: a spring for the intervention of maximum pressure and a second spring for the intervention of minimum pressure. Local Service You can depend on RMG for long-term product reliability and performance, lowest total cost of ownership and installation. Global experience, locally applied.