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Valves:
forged and cast high pressure valves: control, stop, check, blow down, globe, gate, ball,
piston, bellows sealed, instrument
Level gauges: magnetic level gauges, glass level gauges: transparent, reflex, bicolor
Cesare Bonetti - BONT - CMI Pasquini |
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Visitor number
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Last Update
06-02-2008 |
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BONETTI® PISTON VALVES
Our specialty
Over 5,000,000
BONETTI® Piston Valves have been supplied to Companies worldwide!
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Cesare
Bonetti S.p.A. has been manufacturing piston valves since 1926. The new
patented, exclusive BONETTI® Piston Rings
(access the link for more information) have extended the performance range
of BONETTI® Piston Valves. They are now capable of meeting tight
shut off at increased temperature requirements from –40°C up to Fire-Safe!
BONETTI®
Piston Valves have been tested and approved for a wide range of
applications. Among those approving them are:
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German THV for pressurized railway tanks application;
- German THV for TA Luft (no environmental leakage) application;
- France Elf Petrol Co. for Fire-safe application;
- German BASF Co. for chemical plants application;
Tight
shut-off, long life, easy low cost maintenance, quick disassembly and
inspection, and standardized low cost spare parts provide BONETTI®
Piston Valve users a very long, high performance and trouble free operation. |
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BONETTI®
Piston Valves are suitable as Modulating Flow Control Valves
Piston
valves are primarily used as on/off globe valves, but they are also suitable
for use as modulating control valves. The flow path for BONETTI®
piston valves provides an excellent means for control of flow rate, even
when just the standard lantern bushing component is used, and which is not
designed for modulating flow control.
To obtain the best performance as the modulating flow control piston valve,
the valve is fitted with a lantern bushing (see picture) that has a multiple
orifice cage design, which will yield an equal percentage flow
characteristic.
Upon request, linear or quick opening flow characteristics are also
available.
Our flow control piston valve design provides tight shut-off when closed,
and, therefore, does not require additional valves to ensure tight sealing.
Even in cases where there are high pressure differentials, our piston flow
control valves do not permit vibration or noise, thanks to the fact that our
piston is continuously guided. This is, very much in contrast with
conventional control valves with contoured plugs. |
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PISTON VALVE FEATURES
Bolted Bonnet
Shut off or Manual Flow Control Characteristics
Materials: Cast iron, Nodular Iron, Carbon Steel, Stainless steel
Rating: PN 16 - 40 - 63 / ASME 150 - 300 / API 800
Size: DN 10 to 200 ( 3/8" to 8")
Available Connections: Flanged to DIN / Flanged to UNI / Flanged to ASME /
Screwed / Socket Weld / Butt Weld
Piston valves, both standard as well as flow control type, can be automated with
various types of actuators that operate by means of signals generated by process
controllers.
Go to
Piston Valves Catalogue
[ PistonValves ] [ H P Forged Valves ] [ H P Cast Valves ] [ Bellows Valves ] [ BONT-HTB High Temperature ball valves ] [ BONT-WVE ball valves ] [ Blow Down Valves ] [ Instrument Valves ] [ 3-2 way Bypass System ] [ Custom Valves ]
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