Air auto drain pneumatic valve 1/2 BSPP normally open AD402-04
water trap for automatic drainage pipes
Auto drainer easier install in the industry.
Long time lifecycle.
Our air filter with auto drain features follows:
2) Working pressure:1.0Mpa
4) Other type air source treatment unit:filters ,air
|Ensured Pressure Resistance||1.5MPa|
|Ambient and Fluid Temperature||5~60°C|
|Joint Pipe Bore||G1/4″||G3/8″||G1/2″|
|Drain Status||Normal Open Type|
1. AD402 series auto drain valve, port size: 1/4, 3/8, 1/2 inch,
2. Easy to maintain and operate, long service life
3. Auto drain valve is used for drain the condensate of the air
system without requiring human operators.
4.Widely used in compress air
This product often applies to automatically remove the seeper at
the lower places of piping,
refrigerated air dryer, oil water separator, gasometer and the
bottom of various air fi lters.
It can be installed in the places inconvenient for manual discharge
of sewage, such high,
low and narrow places, especially there is large consumption of air
or frequent water drains.
It can prevent the compressed air being re-polluted by condensing
to water resulting from
neglect of manual drain.
Body: Aluminum die-casted
Dauze: Stainless steel
1) When no pressure is applied inside the bowl, float descends of
its own weight and valve closes the chamber hole. Piston is pushed
down by spring , and drain passes through the chamber's long hole
to enter the housing and is discharged.
2) when pressure is applied inside the bowl:
When pressure is 0.1MPa or more, it overcomes the forces of spring,
allowing the piston to ascend, and comes in contact with O-ring.
Thus, the inside of the bowl is isolated from the outside.
3)When drain has accumulated:
Float ascends due to flotation and opens the chamber hole, allowing
the pressure to enter the chamber. Piston descends due to internal
pressure and the force of spring, and the accumulated drain is
discharged through drain guide.
Shipment and Payment
1: Usually we ship your order by sea or by air...
2: We do our best to ship your order within 1 week after receiving
3: We'll tell you the tracking number once your order has been
4: We accept T/T Bank transfer, L/C, Western Union, Moneygram,