Italy giuliani anello Made ST4B Model High Pressure Gas Regulator With Shut Off Valve
High Pressure Gas Governor With Shut Off Valve
TECHNICAL SPECIFICATIONS
Inlet pressure range P1:
ST4B: 50 mbar up to 4 bar.
Operating range: neutral spring standard supply;other ranges according to the
spring table.
Accuracy class: AC10
Lock-up pressure class: SG30
Operating temperature: -15℃ +60℃
Fuel : Gases of three families: manufactured gas (town gas);natural gas
(group H - methane); liquefied petroleum gas(LPG); non-aggressive
gas.
Material: Aluminum body, inner parts in aluminum ,steel, brass and synthetic
materials; diaphragm and gaskets in nitrile-butadiene rubber.
Resistance: according to UNI-EN88-2 and UNI-EN13611 specifications.
Operation : by tensioning the spring, without auxiliary energy.
Construction Features:
Compensation of inlet pressure,
Standard supply safety diaphragm,
External pipe impulse-Rp1/4”
Fast-seal gasket.
Both side inlet and outlet pressure test points with 1/4”.
General Features
The gas regulator/governors are conform to EN88-2
specifications(2009/142/CE gas regulation).The regulator/governors
are suitable to installation systems with automatic gas burners
including mixed and combined systems and to industrial distribution
systems.
Springs setting range:mbar Outlet Pressure of ST4B Model High Pressure Gas Regulator
| Model | ST4B 20-25 | ST4B 32-40 | ST4B 50 |
| Spring Color | Neutral | 10-25 mbar | 10-25 mbar | 10-25 mbar |
| Violet | 20-70 mbar | 20-70 mbar | 20-70 mbar |
| Brown | 65-120 mbar | 65-120 mbar | 65-150 mbar |
| White | 110-230 mbar | 110-23 mbar | 140-270 mbar |
| Black | 220-340 mbar | 220-340 mbar | 260-380 mbar |
| Orange | 330-450 mbar | 330-450 mbar | 370-450 mbar |
TECHNICAL FEATURES
Compensation diaphragm, operating diaphragm and safety diaphragm:
an external breather outlet pipe is not necessary as the
incorporated safety diaphragm ensures that, in the event of
breakage of the operating diaphragm,no gas leakage (over 30 dm3/h)
is
possible inside the room (in compliance with par.3.3.2. EN88
specifications).
INSTALLATION
Install the governor with the diaphragm positioned horizontally (on
horizontal pipes). Be careful to follow always the direction of gas
flow indicated by the arrow on the regulator/governor.
Suitable tools must be used for the regulator/governor fitting on
the inlet and outlet hubs. Never effect leverage on the sleeve of
the upper cover when fitting the regulator/governor.
For all models with the filter inside, the regulator/governor is
best fitted at a comfortable height from the ground so as to
faclitate the filter cleaning (fit always a suitable gas filter
upstream the governor/regulator).
