ZEA type valves

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ZEA type valves

ZEA type valves

2019-03-11T15:30:43+00:00

Project Description

Solenoid valve ZEA

  •     2/2      NC      cl.A
  • Fluids: gas fuels, air
  • direct acting
  • poppet
  • manual regulation of flow (option)
  • suited to zero pressure differential conditions (ΔPMIN= 0 bar)
  • permanent strainer built-in
  • conforms to PN-EN161
  • designed for reliable service in all types of installations and appliances (e.g burners, heating boilers), supplied from low pressure gas network
  • as a part of the gas train supplying gas appliances (mentioned above), the valve will act as an automatic safety shut-off valve acc. to requirements of p 5.2.2.3, PN-EN 746-2 standard
  • in air conditioning systems
  • pneumatic control systems
fluid media gas fuels, air, non-aggressive gases
pressure see tab „Dimensions / Pressures”
fluid media temperature -10°C ÷ +60°C
ambient temperature -10°C ÷ +60°C
voltage AC(50Hz) 24V, 110V, 230V; DC 12V, 24V
power 15W ÷ 71W (depending on type)
closing time <1s
flow regulation range  0% ÷ 100%
operation type continuous (100%)
degree of protection IP54
valve body material aluminium alloy
sealing material nitrile-butadiene rubber  NBR
mounting position coil upwards -acceptable deviation from vertical   position up to  90O
Type Dn Rp A
[mm]
B
[mm]
E*
[mm]
L
[mm]
PMAX
[bar]
ΔP
[bar]
M
[kg]
Threaded connection:
ZEA-10 10 3/8 109 14 69/41** 62 1,20 0/1,20 1,64
ZEA-15 15 1/2 110 14 69/41** 72 1,20 0/1,20 1,66
ZEA-20 20 3/4 127 22 77 105 0,26 0/0,26 1,80
ZEA-25 25 1 136 28 80 115 0,17 0/0,17 2,05
ZEA-32 32 1 1/4 174 37 101 145 0,14 0/0,14 4,08
ZEA-40 40 1 1/2 195 43 110 180 0,25 0/0,25 5,80
ZEA-50 50 2 205 41 140 193 0,14 0/0,14 6,40
ZEA-65 65 2 1/2 261 61 170 240 0,25 0/0,25 14,80
Flanged connection:
ZEA-50k 50 240 78 165 230 0,14 0,014 7,40
ZEA-65k 65 286 83 182 270 0,25 0/0,25 17,15
ZEA-80k 80 315 94 200 310 0,11 0/0,11 23,65
ZEA-100k 100 340 103 220 350 0,11 0/0,11 27,10
* – maximum width of valve
** – valve width without coil

• they can operate independently of the existing pressure difference ΔP on the valve
• suited to zero pressure differential conditions (ΔP min= 0 bar)
• their design limitation is the value of the maximum pressure difference ΔPMAX that can occur on the valve. It depends on the lifting force of the electromagnet and the nominal diameter of the valve flow orifice (the larger the nominal diameter, the smaller the ΔPMAX value for the same electromagnet)
• with a pressure greater than the maximum differential pressure ΔPMAX, the valve will not work properly (it will suspend)
• short actuation time (from a dozen to several dozen ms)
• high reliability due to the simplicity of the design and a small number of internal parts
• long lifespan – some designs can reach up to several million work cycles