Chalwyn Shutdown Valves
Leading manufacturers of safety products for diesel engines
Chalwyn D Series
Designed to automatically stop an engine if excess over speeding occurs due to malfunction of the engine fuel/governor system or in the presence of combustible gas or vapour in the engine's intake system.
Benefits and Features
Chalwyn X Series
Diesel engine intake closure valves based on standard 3" and 5" slim fit butterfly valves. Used as an individual safety feature or as part of a complete flame protection installation. Mechanically (MVX), Electrically (SVX), or Pneumatically (PVX) operated options.
For small engine mounting, this starter can be indexed at 40° increments at the motor and additional 60° increments at the drive.
Eletrically operated - SVX
Pneumatically operated options – PVX
Mechnically operated - MVX
Chalwyn Z Series
Automatic engine over speed air intake closure valves with integral intake flame arrestor housing and provision for automatic closure on temperature/pressure signals from an oil or air pressure operated sensor system.
Chalwyn Fuel Shutdown Valve
Diesel fuel shutdown valves for use in conjunction with an air intake valve to give automatic closure of the engine fuel supply on over speed in compliance with EN 1834:2000.
Fits up to 10,, (3/8") fuel pipes
Chalwyn Flameproof Alternator
ATEX certified, "CE" marked EExd IIT4 alternators. Suitable for mounting in place of the standard engine alternator, these belt driven units are enclosed to IP66 standard in an electrically isolated housing and are fitted with automotive style internal regulators.
ASX-200: 14V/50A maximum output model for use with an engine start battery
ASX-300: 28V/25A maximum output model for use with an engine start battery.
ASX-310: 28V/25A maximum output self-excited alternator.
Chalwyn Spark Arrestor
Quenching type diesel engine exhaust spark arrestors to prevent stray sparks from igniting flammable material. Approval spark arrestors must be fitted to all diesel engines operating in Zone 1 and Zone 2 hazardous areas.
Engine ratings up to 350khW