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Chalwyn

Chalwyn - Manufacturer and supplier of Diesel Engine Protection Devices

Chalwyn
Chalwyn
  • Air Intake and Fuel Shutdown Valves and Systems
  • Flameproof Alternators
  • Spark Arrestors

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Engine air intake positive shut off valves

If flammable gas or vapour is drawn into the intake of a diesel engine it acts as an additional ungoverned fuel supply. This may result in uncontrolled engine overspeed, followed by dangerous mechanical failure or flash back through the air intake, and the ignition of the surrounding gas or vapour cloud.

Once a flammable mixture is being drawn into the engine intake it may not be possible to stop the engine by closing down the fuel supply. An air intake valve guarantees a rapid and safe engine shut down.

Automatic reset types - Engine air intake positive shut off valves
Simple, cost effective engine shutdown on overspeed. No speed signal or power input needed. Lightweight, easy to install. Automatic reset after engine stops. Low maintenance. Metal to metal seat seal.

 

Basic D series


Models available to meet virtually all popular combinations of intake pipe sizes and engine ratings.

Mini range - for engines to 27kWm (36hp) with intake pipe 25mm (1") - 58mm (2-1/4")
Download Datasheet
CE209 - selection, application & maintenance

Bendix range - for engines 7.5 kWm (10hp) - 149kw (200hp) with intake hose bore 40mm (1-9/16") - 108mm (4-1/4")
Download Datasheet CE204 - selection, application & maintenance

Deutz flanged - model 1011 and 2011 engines up to 53kWe (72hp) with standard 70 mm (2-3/4") inlet hose
Download Datasheet
CE246 - selection, application & maintenance

Spindle range - for engines 80kWm (107hp) - 392kW (525hp) with intake hose bore 76mm (3") - 154mm (6-1/16")
Download Datasheet
CE205 - selection, application & maintenance

D200 range - for engines up to 650kWm (805hp) with intake hose bore 152mm (6") - 229mm (9")
Download Datasheet CE231 - selection, application & maintenance

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D-AM series


Automatic overspeed with remote manual stop. Various cable lengths available.

Mini range for engines to 27kWm (36hp) with intake pipe 25mm (1") - 58mm (2-1/4")
Download Datasheet -
CE209 - selection, application & maintenance

Bendix range - for engines 7.5 kWm (10hp) - 149kw (200hp) with intake hose bore 40mm (1-9/16") - 108mm (4-1/4")
Download Datasheet -
CE207 - selection, application & maintenance

Spindle range - for engines 80kWm (107hp) - 392kW (525hp) with intake hose bore 76mm (3") - 154mm (6-1/16")
Download Datasheet - CE210 - selection, application & maintenance

D200 range - for engines up to 650kWm (805hp) with intake hose bore 152mm (6") - 229mm (9")
Download Datasheet -
CE231 - selection, application & maintenance

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DF series


Automatic overspeed shutdown valve with integral air cleaner

Mini range for engines to 27kWm (36hp) with intake pipe 25mm (1") - 58mm (2-1/4")
Download Datasheet -
CE209 - selection, application & maintenance

Bendix range - for engines 7.5 kWm (10hp) - 149kw (200hp) with intake hose bore 40mm (1-9/16") - 108mm (4-1/4")
Download Datasheet - CE206 - selection, application & maintenance

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DF-AM series


Automatic overspeed with remote manual stop and integral air cleaner

Mini range for engines to 27kWm (36hp) with intake pipe 25mm (1") - 58mm (2-1/4")
Download Datasheet -
CE209 - selection, application & maintenance

Bendix range - for engines 7.5 kWm (10hp) - 149kw (200hp) with intake hose bore 40mm (1-9/16") - 108mm (4-1/4")
Download Datasheet- CE207 - selection, application & maintenance

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PVX series


Air pressure to open
Sprung closed air intake shut down (shut off) valves which can be held open by the application of air pressure. Slim, light weight, 3", 5" and 8" bore butterfly valves which are opened by air pressure. These products are designed to be mounted between flanges or can be supplied fitted with hose adaptors selected from a range of 28 size options.
Download Datasheet -
CE208 - selection, application & maintenance

Air pressure to shut down
Sprung open air intake shut down (shut off) valves which can be held closed by the application of air pressure
Download Datasheet - CE208 - selection, application & maintenance

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TPZ and D-AP series

Automatic overspeed or air pressure to shut down

TPZ and D-AMP models


Automatic overspeed, manual or air pressure to shut down
Simple, cost effective valves combining automatic overspeed shutdown with air pressure operated shutdown. No speed signal or power input needed. Light weight construction. Easy to install. Easy to adjust. Automatic reset after engine shuts down and air pressure signal removed. Low maintenance. Metal to metal seal.

Suitable for US MMS offshore installations including air operated ESD systems.

TPZ range for engines from 7.5kW (10hp) - 149kW (200hp) and intake hoses from 40mm (1-9/16") - 108mm (4-1/4")
Download Datasheet -
CE237 - selection, application & maintenance

D-AP & D-AMP range for engines from 80kW (107hp) - 605kW (805hp) and air intake hose bores from 76mm (3") - 229mm (9")
Download Datasheet - CE238 - except D200 sizes, selection application & maintenance
Download Datasheet - CE231 - D200 sizes, selection application & maintenance

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SVX models


Solenoid energized to open
Available in 12V or 24V. Slim, light weight, corrosion resistant construction. Can be flange or hose mounted. May be combined with Chalwyn FSX-200 fuel shut down valve to give simultaneous shut down of intake air and diesel fuel.

Download Datasheet - CE239 - hazardous area, energized to open. ATEX approved, externally switched solenoid. Automatic closure on loss of power. 38mm (1-1/2") to 203mm (8")

Download Datasheet - CE240 - safe area, energized to open models. Externally or internally switched solenoid options. Automatic closure on loss of power. Internal microswitch for valve status monitor. 38mm (1-1/2") - 203mm (8")

Manual reset types - Engine air intake positive shut off valves

 

 

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MVX models


Manual shut down
Slim, light weight, 3", 5" and 8" bore butterfly valves complete with reset lever to latch in the open position and the option of either a valve-mounted stop button or a remote stop button with a cable connection to the valve. These valves may be mounted between flanges or can be supplied fitted with hose adaptors selected from a range of 28 size options.

Suitable for US MMS attended installations, and Canadian remote positive air shut off regulations. Simple operation--instant engine shut down. Corrosion resistant; proven in offshore service. Metal to metal seals--avoids wear association with 'O' ring seals

Download Datasheet - CE215 - basic MVX models. Push or pull shutdown

Download Datasheet - CE217 - MVX models with remote stop control. Version with twin pull cables available.

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MPX series


Manual or air pressure shut down
Simple manual latch to open -- air pressure releases valve to close. Manual shut down via valve mounted stop button or via cable from remote shut down control. Suitable for drilling rig ESD air systems / US MMS offshore installations. Push or pull remove shutdown options with choice of cable lengths. Build option available without manual shut down. Air intake diameters from 38mm (1-1/2") - 203mm (8")

Download Datasheet - CE236 - selection, operation and maintenance

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SVX series


Solenoid energized to shut down
Manually latched open, solenoid operated air intake shut down (shut off) valves requiring an electrical supply to close

Download Datasheet - CE228 - safe area, energized to close models. Simple reset to latch open. Two wire solenoid connection. Manual cable operation for secondary operation method or testing. Internal microswitch for valve status monitor. 38mm (1-1/2") - 203mm (8")

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Manual start override types

Engine air intake positive shut off valves

SVX series


Manual or de-energize solenoid to shut down
Slim, light weight, 3" and 5" bore, 12 volt and 24 volt butterfly valves. Available as either EExe or safe area equipment. Complete with cable and lever start override to hold the valve open prior to powering the solenoid. Shut down occurs on loss of power to the solenoid or by operation of the manual shut down control. These valves may be mounted between flanges or can be supplied fitted with hose adaptors selected from a range of 26 size options.

Download Datasheet - CE230 - hazardous area, manual override, energized to latch open models. ATEX approved. Two wire solenoid connection. Sprung closed on loss of power. Manual emergency stop. 38mm (1-1/2") - 152mm (6")

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HVX series


Manual or loss of oil (or air) pressure to shut down
Slim, light weight, 3" and 5" bore butterfly valves with cable and lever start override to enable the valve to be held open prior to supply of oil (or air) pressure. Shut down occurs on loss of oil (or air) pressure or by operation of the manual shut down control. These valves may be mounted between flanges or can be supplied fitted with hose adaptors selected from a range of 26 size options.

Download Datasheet - CE229 - selection, operation and maintenance

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TMZ series & AMZ series


Automatic overspeed air intake shut down (shut off) valves with shut down on loss of oil pressure combined with manual start override / manual emergency shut down
Fully automatic engine overspeed protection valves with an input port to also give a shut down on loss of an oil (or air) pressure signal. Supplied complete with a cable and lever to enable the valve to be held open prior to the supply of the oil (or air) pressure signal and, when operated in the reverse direction, to enable a manual emergency shut down.

Download Datasheet - CE208 - TMZ-121 to TMZ-302 valves, 7.5kW (10hp) - 193kW (240hp) naturally aspirated; 7.5kW (10hp) - 149kW (200hp) turbocharged

Download Datasheet - CE243 - Z Series Intake Shut Down (Shut Off) Valves – Spindle Types, 86 kW (115hp) - 392kW (525hp)

Download Datasheet - CE231 - 270kW (362hp) - 600kW (805hp)

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Fuel shutdown valves

FSX and LST series


When used in conjunction with the appropriate Chalwyn D, X or Z intake air valve, the FSX-200 ensures simultaneous shut down of both engine air and fuel supply. Special kits are available to assist in making the required connection between the intake air and fuel shut down valves.

The LST-200 automatically closes down the engine fuel supply on loss of an oil (or air) pressure signal. Suitable for engine types with fuel supply pipes up to about 10mm (3/8 inch) in diameter.

Download Datasheet CE226 - selection, application & maintenance

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Diesel engine exhaust spark arrestors

SSL, SSE, SAS and SSS series


An exhaust spark arrestor is a key safety requirement for both hazardous areas and lower risk diesel engine applications such as forestry or agriculture where a stray spark may cause ignition of combustible material.

Download Datasheet
CE224 - selection, application & maintenance

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Engine mounted flameproof alternators

ASX series


Standard automotive type alternators are a continuous potential source of ignition when operated in hazardous atmospheres where combustible concentrations of gas, vapour or dusts may exist. Chalwyn offers a range of flameproof alternators. Battery excited and self-excited, 12V and 24V, 25A and 50A.

Download Datasheet CE211 - ASX-200 / ASX-300 Flameproof Alternators (Group IIB)

Download Datasheet CE232 - ASX-310 Self Exciting Flame proof Alternator (Group IIB)

Download Datasheet CE244 - ASX-220/ASX-320 Flameproof Alternators (Group I)

Download Datasheet CE245 - ASX-330 Self Exciting Flameproof Alternator (Group I)

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