Francel Regulator Francel B25-21mb with safety

TYPE B Regulators DOMESTIC GAS REGULATORS  TYPE B Regulators Domestic gas regulators e APPLICATIONS Residential houses 810 825 8CH 30 840 86 810 Commercial utilities, Municipal buildings 810 825 840 8CH 30 850 8CH 60 lndustrial 8 75 8CH 90 appliances 8100 8CH 120 The type B regulators provide economical pressure reducing contrai in a variety of residential, commercial and Use of 2, 3 or 4 regulators industrial applications. The regulator can be used mounted parallel (battery) for a variety of gaseous fluids. lt will be utilized in a distribution network, with inlet pressure varying from 5 to 0, 1 bar. The outlet pressure can be set between 9 and 400 mbar, with a flow capacity of O to 48 m3/h. The regulator can be installed in pressure reducing cabinets or reducing and metering cabinets in a compact design above ground or in underground modules.  TYPE B Regulators Domestic gas regulators e DESCRIPTION OPTIONS • The type B regulator is a direct acting spring /oaded • ln/et and out/et connections adaptable on demand. regulator, with high performance and safety features. • Law in/et pressure possibilities (O. 1 to 0.5 bar). • 2 stages of reduction produce a constant out/et pres· • Option for different out/et pressure settings (standard and sure, which is insensitive to changes in in/et pressure. The specific). regulator is factory pre-set. • Options for manua/ pressure setting. • The slam shut cuts the flow in case of excessive f/ow or • Factory pre-set relief valve. when the out/et pressure drop be/ow set point (high gas • Vent connectable to the exterior. demand or broken line), or in case the in/et pressure drop • Vent connection adaptable on demand. below the set point (network pressure drops or pipe • Underground modules are supplied with corrosion protec­ damage). A manua/ reset allows for restarting the regulator tion. after clearing failure. • Option for parai/el mounting of regulators to forma "battery", • The regulator is equipped with an internai relief valve. which give a flow capacity of 2,3 or 4 times the flow of one • A strainer protects the regulator at the in/et side. regulator, with the same high regulating performances. e PRINCIPLE OF OPERATION REGULATING p The pressure reduction is done in two stages: The first stage reduction is taken over the inlet plug 10 and the seat ring 11. Tightness is ensured through the plug dise seat 10 which closes on the seat ring 11. Pressure regulation is controlled by the 1 st stage diaphragm 20, which sen ses intermediate pressure on one side and on the other side the set pressure of the spring 21. The second stage reduction is taken over the regulating plug 12 and the seat ring 13. Pressure reduction is controlled by the 2"d stage diaphragm, which senses outlet pressure on one side and on the other the set pressure of 20 13 the spring 22. This spring is factory pre-set. Finally on modules other than the BCH, the trip set lever functions also as trip lever, which closes the second stage regulating plug 12.  8 Regulators e 1NSTALLATION The regulator can be mounted in any position. lnstall using schema C14 (example). B6 Pressure sensing is internai and the regulator does not require external sensing lines. Use the torque indicated on the inlet connection. CONNECTIONS Pe Pa lnlet Sphero-conical or fiat joint connection Outlet Flat meter joint connection Vent 10 mm or customised size • C14 Pe Pa e DIMENSIONS & WEIGHT DIMENSIONS 810, 825, 840, 8CH30 60 85 r21- DIMENSIONS 86 ___ 10_3____ 1 I 0 <D 0 <D WEIGHT 86 1 kg B 10 2 kg B 25 2 kg Characteristics, dimensions and diagrams B 40 2 kg can bind FRANCEL only after confirmation. BCH 30 2 kg REQUIRED OROER INFORMATION STANDARD REGULATORS SPECIAL REGULATORS Select the type Specify Standard characteristics: • lnlet pressure maxi mini: see table C02 � 86 B10 B 25 B 40 BCH 30 • Outlet pressure: see table C03 •c ._. Pe min (bar) 0.5 0.5 0.5 0.7 0.8 • Maximum flow: Pe max (bar) 4 4 4 4 4 see table C02 Pa (mbar) 21 21 21 21 300 • lnlet connections: specify Flow (m'/h(n)) 7.2 12 30 48 36 • Outlet connections: lnlet * 3/4" use the available information on commercial meters Outlet ** 1"1/4 • Vent connection C16a • Relief valve setting • Sphero-conical connection, •• Flat joint connetction • Option underground module • Option manual pressure setting Standard protection • Option special pain! 86 : unpainted Others : vinyl finish Batteries and Underground modules : polyurethane paint <D I 0 z