general product catalogue complete range of regulators

SECOND STAGE
LOW PRESSURE
PRODUCT DESCRIPTION
The Type 748 is a second-stage low pressure regulator suitable to be
installed in double stage domestic installations up to 15 Kg/h capacity. The
type 748 reduces the pressure at the outlet from the 1st stage directly to
the utilization pressure of the final appliances.
Furthermore, it is possible to set up manually the outlet pressure.
This regulator cannot be used as single stage regulator, but always has to
be installed after a 1st stage regulator.
See diagram schematic: D-25 (page C13) for installation system.
MATERIALS
- Body : Die Cast Zinc/Painted
- Spring: : Steel
- Diaphragms : Approved NBR
GAS
Propane
Butane/Propane
SAFETY DEVICES
Safety Relief Valve - (SRV) Protection
The Type 748 regulator incorporates a pressure relief valve, a safety device
designed to prevent the flow of gas at a pressure greater than the maximum
allowable pressure of the gas burning appliance. This device operates discharging
the excess pressure existing in the installation to the outside.
ACCESSORIES
On request, it is possible to supply a mounting bracket for the correct position
on every surface of the regulator Type 748.
OUTLET PRESSURE
(Depending on the gas)
Low Pressure
Second Stage Regulator
with Safety Relief Valve
Type 748
TECHNICAL FEATURES*
CAPACITY
(Depending on the gas)
WORKING
TEMPERATURE
30 - 37 mbar 15 Kg/h -20 ÷ +50 °C
Part 1
Part 1
REGULATORS FOR
DOMESTIC USE
INSTALLATIONS
DIMENSIONS
INLET CONNECTIONS
(pag. D04)
TABLE D:
D04
* Note: The table shows all the variants of the configurations/technical features available for this type of regulator.
Homologation in compliance with a standard / country will relate to a specific combination of connections, technical features and performance criteria.
OUTLET CONNECTIONS
(pag. D06-D07)
TABLE G:
G08
TABLE H:
H06
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EDITION JUNE 2003