DB120 DB120/C Diaphragm For Mecair Pulse Solenoid Valve VNP220
VNP420
Brief introduction of electromagnetic pulse valve diaphragm:
DB120 ( DB120/C ) Diaphragm ( Membrane ) for Mecair pulse valve
VNP220, VEM220, VNP420, VEM420, VNP424, VEM424, VNP620, VEM620,
VNP720, VEM72; NBR material is standard, working temperature range
is -5 to +80 ℃; material is optional, for high temperature, working
temperature range is -10 to +120 ℃. On a pulse jet baghouse pulse
valves (also called diaphragm valves) control the release of air
pulses during the cleaning cycle. When the baghouse control board
or timer board initiates a cleaning cycle it sends an electrical
signal to the solenoids, when then activate the pulse valve. Inside
the pulse valve, a rubber diaphragm opens and closes to release the
compressed air stored in the air header tank. The air then passes
through the valve into the blow pipes above the filters and then is
directed down into the filters to clean them.
| Product Materials | NBR,NR |
| Operating Temperature | -20℃~80℃ |
| Service Life | ≥1000000 times |
| Usage Scenario | Bag filter devices /precipitator equipment |
Working principle:
The electromagnetic pulse valve diaphragm divides the pulse valve
into two air chambers. When the pressure of the rear air chamber
makes the diaphragm close to the air outlet of the valve, the pulse
valve is in a closed state, the pulse controller outputs a signal
to move the armature of the pulse valve, the vent hole of the air
chamber behind the valve is opened, and the rear air chamber
quickly loses pressure, making the The diaphragm moves backward,
the compressed air is blown through the outlet of the valve, the
pulse valve is in the open state, the injection starts, the
electrical signal output by the pulse controller disappears, the
electromagnetic pilot of the pulse valve is reset, the vent hole of
the rear air chamber is closed, and the back When the pressure of
the air chamber rises, the diaphragm of the pulse valve is close to
the air outlet of the valve, the pulse valve is in the closed
state, and the injection stops. The length of the injection time is
controlled by the controller.
Structural properties:
The operating temperature range and pressure range of the diaphragm
itself depends on the type of rubber, fabric and structure. The
diaphragm can work under the conditions of -50~100 degrees Celsius
and 0.4~0.8MPa; the fluororubber and silicone rubber diaphragms can
work under the conditions of -80~232 degrees Celsius. Chlorohydrin
rubber diaphragm can work under the pressure of 0.4~0.8MPa, has
good air tightness, anti-aging, and its life is equal to that of
engine overhaul.
Our service:
1. Packaging is neutral packing or customized packing.
2. We will reply you within 24 hours.
3. We will also provide you with good after-sales service.
4. OEM or ODM orders are welcomed.
5. Trial orders are acceptable.
6. High quality and factory price.
7. 100% ensured the quality.
