Pressure
VB100, VB100SS and VB100SSVG open at 1-2 kPa vacuum (Gravity draining systems).
VB100U & VB100USS open at 35 kPa vacuum (Pump systems).
Orifice equal to 6mm dia hole.
Operation
Spring loaded poppet opens at a set vaccum to allow air into the high section of the system and removing any vacuum that may ‘hang-up’ a liquid column.
Mounting
Into ½" BSP and NPT female socket.
Ensure the poppet head is level with the inner end of the socket thread inside the pipe when fitted, in order to maximise flow area.
Materials
-Brass body, polyurethane cap, stainless steel spring.
-Poppet is acetal in VB100, VB100SS and VB100SSVG and stainless steel in VB100U/VB100USS.
-Seal is Viton A standard (coloured red).
-VB100SS & VB100USS have a stainless steel body.
Weight
0.14 kg.