
Globe valves ZB
Shut-off globe valves to cut off the gas supply to low-pressure installations
Shut-off valves type ZB are fast closing globe valves for use with gas detectors (gas detection systems).
They are opened only manually and closed with an electric impulse (12 V DC) or manually with a button. Both the opened and closed positions do not require power supply.
Activation of the valves – i.e. immediate cut-off of gas supply to a device or installation – results from electric impulse from the gas detection system upon gas concentration exceeding the preset threshold..
Area of application
- in gas installation safety systems: in gas boiler rooms, residential buildings, etc;
- in low-pressure gas installations;
- may additionally serve as a manual shut-off cock.
Features
- both opened and closed positions do not require power supply – they are energy efficient (an electrical pulse of 12 V DC with a duration of only < 1 s is needed to close the valve);
- insensitive to system supply voltage loss – its absence or momentary disappearance does not cause changes in gas flow through the valve;
- resistant to any disturbances that may cause the valve to open accidentally when closed (only conscious action by supervisors);
- low force required to open the valve;
- simple, cost-effective, reliable and lightweight design;
- equipped with a mesh filter which guarantees long life;
- maximum operating pressure 25 kPa (0.25 bar);
- meets the requirements of PN-EN161.
Offered models
Model | Valve diameter | Connection | Connection diameter | Dimensions | Net price | C.g. | |
---|---|---|---|---|---|---|---|
ZB-20 | DN20 | Threaded | 3/4" | 105 x 135 x 77 mm | PLN659.00 | S | |
ZB-25 | DN25 | Threaded | 1" | 115 x 145 x 80 mm | PLN699.00 | S | |
ZB-32 | DN32 | Threaded | 1 1/4" | 145 x 155 x 101 mm | PLN980.00 | N | |
ZB-40 | DN40 | Threaded | 1 1/2" | 180 x 180 x 110 mm | PLN1,090.00 | N | |
ZB-50 | DN50 | Threaded | 2" | 193 x 188 x 140 mm | PLN1,190.00 | N | |
ZB-65 | DN65 | Threaded | 2 1/2" | 240 x 222 x 170 mm | PLN1,750.00 | N |