ZB type valves

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ZB type valves

ZB type valves

2019-03-31T21:31:49+00:00

Project Description

Shut-off , poppet valve ZB

  • 2/2 cl.A
  • opened only manually (pulling the handle), closed with electrical impulse coming from gas detection system, which detect dangerous gas concentration
  • valve might be closed also manually (with button)
  • permanent strainer built-in
  • adapted for external applications
  • conforms to PN-EN161
  • in Gas Safety Systems of: gas boiler rooms, domestic installations – as an actuator that surely and effectively cuts off the gas supply to installations
  • in low pressure gas installations
  • additionally valve can be used as manual stopcock,
fluid media gas fuels
pressure See tab „Dimensions / Pressures”
fluid media temperature -25°C ÷ +60°C
ambient temperature -25°C ÷ +60°C
trigger type
electrical impulse
Min. impulse time duration
power
operation type
WE
DC 12V
ti > 0,2s
26W
continuous
EZB-12,6G
AC(50Hz) 230V
ti > 0,3s
45VA
continuous
opening manual
closing electrical impulse or manually – with button
closing time < 1s
degree of protection IP54
valve body material aluminium alloy
sealing material nitrile-butadiene rubber NBR
mounting position arbitrary
Typ Dn Rp A
[mm]
B
[mm]
E*
[mm]
L
[mm]
PMAX
[bar]
ΔP
[bar]
M
[kg]
Threaded connection
ZB-20 20 3/4 135 22 77 105 0,25 1,0 1,20
ZB-25 25 1 145 28 80 115 0,25 1,0 1,35
ZB-32 32 1 1/4 155 37 101 145 0,25 1,0 1,96
ZB-40 40 1 1/2 180 43 110 180 0,25 1,0 2,62
ZB-50 50 2 188 41 140 193 0,25 1,0 3,18
ZB-65 65 2 1/2 222 61 170 240 0,25 1,0 4,81
Flanged connection:
ZB-50k 50 215 78 165 230 0,25 1,0 7,40
ZB-65k 65 240 83 182 270 0,25 1,0 17,15
ZB-80k 80 313 94 200 310 0,25 1,0 23,65
ZB-100k 100 325 103 220 350 0,25 1,0 27,10
  • in both open and closed positions valves do not require power supply – they are energy efficient (electrical impulse with duration <1s is needed only to close the valve)
  • insensitive to voltage decay supplying the system – its absence or temporary decay does not cause changes in the gas flow through the valve
  • resistant to any interferences that in the closed state can cause accidental valve opening (only conscious actions of supervisors)
  • very small maneuvering area required to operate and small force needed to open the valve
  • simple, cheap, reliable and lightweight construction
  • long lifespan