1/2" CO2 Cylinder Valve Accessories
General Information
These operating instructions cover a range of accessories for our ½” CO2 cylinder valve. Although they are designed to compliment our DAB cylinder valve, they may be incorporated into any CO2 total flooding system.
| Part No | Accessory | Description of Operation |
D10996 |
Manifold Burst Disc Assembly |
The Manifold Burst Disc Assembly is designed to be fitted in to the manifold to protect the system from any accidental overpressure. ie: Pressure build up in the manifold due to high temperature. When the burst pressure is achieved the Recoil Nozzle vents the built up gas safely to atmosphere. The manifold burst disc can be supplied with either a 3/8” BSPT or a ½” BSPT Male Thread. The burst disc is designed to burst at a pressure of 190 Bar. |
| D11056 |
Bleed Valve |
The bleed valve is designed to prevent accidental initiation of the main system in the event of a slow build up of pressure into the pilot line caused by leakage from any actuation device. The valve, shown in the open position, allows pilot gas to pass to atmosphere thus preventing any rise in pressure in the pilot line. However, when the system is operated, the pilot pressure rises rapidly above the closing pressure and the valve closes thereby allowing actuation to take place immediately. After operation, when the system is bled, the valve will reset automatically. However, if there is no provision for bleeding, this can be achieved by simply pushing in the reset knob. The bleed valve is supplied with a ¼” NPT Female thread The valve is designed to shut fully at a pressure of 2 Bar - 30 PSI |
| D10992 |
|
This valve is designed to fit between the manifold and the CO2 valve to stop any possible back pressure from occurring when the system is discharged. The ½” Ball Check can be supplied with either a ¾” BSPT or a ¾” NPT male thread. The NPT Thread is identified by a series of notches machined in the hexagon portion of the valve body. On the other end of the ball check a CO2 thread is machined to take any standard CO2 connector. |
| D11101 |
½” Ball Check Valve with Pilot Line Tapping |
This valve is designed to fit between the manifold and the CO2 valve to stop any possible back pressure from occurring when the system is discharged. In addition this valve has a threaded port to enable cylinder pressure to be used to operate any other CO2 Equipment. The ½” Ball Check can be supplied with either a ¾” BSPT or a ¾” NPT male thread. The NPT Thread is identified by a series of notches machined in the hexagon portion of the valve body. On the other end of the ball check a CO2 thread is machined to take any standard CO2 connector. The pilot line thread is machined in the side of the body to accept any standard 3/16” Enots pipefitting. |
Basic Specifications
| Minimum | Maximum | |
| Operating Temperature | -20 degrees C | +50 degrees C |
| Pressure Range - Manifold Burst Disc | 0 BAR - 0 PSI | 190 BAR - 2755 PSI |
| Pressure Range - Bleed Valve | Open below 1 ½ Bar-22 PSI Closed above 2 Bar –30 PSI |
140 Bar - 2030 PSI |
| Pressure Range - Ball Check & Ball Check with Pilot line Tapping | A minimum of 31 Bar - 450 PSI must be available at the ball check pilot line in order for it to be used for the actuation of other devices. | 140 Bar - 2030 PSI |