Globe valves ZB

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 Net price C.g.
ZB-20 DN20 Threaded 3/4" PLN659.00 S
ZB-25 DN25 Threaded 1" PLN699.00 S
ZB-32 DN32 Threaded 1 1/4" PLN980.00 N
ZB-40 DN40 Threaded 1 1/2" PLN1,090.00 N
ZB-50 DN50 Threaded 2" PLN1,190.00 N
ZB-65 DN65 Threaded 2 1/2" PLN1,750.00 N
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