o When there is no water in the pipe, the bronze valve clack drops
down to the full opening position. Air is released from the
discharge hole as water coming in, then water can be filled into
the pipe immediately.When there isn't any air in the pipe, water
comes into the valve, then valve clack goes up to the shut-off
position by lifting of the floating ball. These improve water
transporting capacity and efficiency of the pipe system, reduce
o Air is dissolved into water, and then is released from water
continuously when transporting. At this time, the floating-ball
drops down, the air is released from the small hole on lever of the
valve clack. Or the air gathered at the top of the pipe can lower
the water transporting capacity of the pipe system.
o When there is negative pressure in the pipe, bronze valve clack
drops down, discharge hole is open, and then the valve draws in the
air immediately, so avoid abnormal water supply caused by negative
pressure in the pipe.
o Inside and outside epoxy resin powder coating, no iron exposed.
o Valve pin and lever made of bronze, insure good durability.
o Dust preventing cap fixed upon the guiding bushing,compact
design, attractive appearance
Excellent corrosion protection:
o Inside and outside epoxy resin powder coating.
Reliable health nature:
o Epoxy resin powder is up to the health standard GB/T17219-1998.
Scope of application:
o Pipe for water transportation and pump's existence,to be
installed at the highest point of level pipe
Technical characteristics :
Design standard: Manufacture's standard Q/SDA 005-1
Flange: GB/T17241.6-1998 neq DIN2501
Face to face dimensions: Depend on manufacturer
Testing standard: Company standard Q/SDA SY 005-1
Working temperature: NBR <80C
EPDM< 120CFBM <160"C
Main components and their materials:
body ,cover,lerver locking
GGG50 with internal and
External epoxy resin coating
NBR, EPDM or FBM
The corner of the inventory