Diaphragm anti-siphon valve MAV

Data sheet Diaphragm anti-siphon valve MAV

Benefits

Safe height 1-4 m
With shut-off and venting function
Incl. lead sealing kit
Materials resistant to biofuel and biodiesel with max. 100 % FAME
Proofed Barrier (odour-tight)
Watertight up to 10 m water column - ideal for use in flood hazard areas

Application

For oil carrying suction pipes in oil consuming systems where a pipe section is below the maximum tank level. MAV keeps fuel oil from being siphoned out of the tank in the case of leaks. Suitable for the following media: fuel oil (DIN 51603-1) and diesel fuel (EN 590) as well as biofuel and biodiesel with max. 20 % FAME. Also for use in flood hazard areas.

Versions

	Part no.	Remember
Diaphragm anti-siphon valve MAV	20139
Screw connections G⅜ x 6 mm with Cu Cu flat gasket, dual	20507
Screw connections G⅜ x 8 mm with Cu Cu flat gasket, dual	20504
Screw connections G⅜ x 10 mm with Cu Cu flat gasket, dual	20505
Screw connections G⅜ x 12 mm with Cu Cu flat gasket, dual	20506

Blue part no. = in-stock items

Downloads

	Description	Format
Data sheet Diaphragm anti-siphon valve MAV	Data sheet	PDF
Test report: Function test protection equipment against siphoning (MAV, KAV)	Equipment for fuel oil storage tanks and oil carrying pipes	PDF
Certificate Proofed barrier: Tested odour impermeability of oil tank components (odour barrier)	Products	PDF

Description

MAV is continuously adjustable to a safe height of 1–4 m for optimum adaptation to suit local conditions. The adjusted value corresponds to difference between the installation height and the lowest point of the oil line. MAV shuts off under spring pressure and opens under the vacuum caused by the pump. Watertight up to 10 m water column. If necessary, install a pressure compensation unit.

Technical data

Adjustment of safe height

Corresponds to installation height
1 – 4 m, fully adjustable

Connection thread

Both ends G⅜ female

Mounting position

Any

Oil flow rate

Max. 220 l/h

Operating temperature range

Medium:

-25/+40 °C

Ambient:

-25/+40 °C

Vacuum-tight

Bis -1 bar

Test pressure

Max. 6 bar

Material

Housing:

Brass

Approval for construction products

DIBt: Z-65.50-415

Scope of delivery

Diaphragm anti-siphon valve
Lead sealing kit