Orifice plate with annular chambers consisting of two support rings with replaceable orifice disk form A or B (see types of primary differential pressure devices in “Technical description”, “Function”); flanged between inlet and outlet pipe sections with lengths according to DIN 19205.

Nominal diameters

• EN: DN 10 to DN 50


• ASME: ½ inch to 2 inch

Nominal pressure

• EN: PN 10 to PN 100


• ASME: class 150 to 600

Sealing face of the end flanges

• Plane, sealing face turned, N10/N12 to DIN ISO 1302


• Plane, sealing face turned, N8 to DIN ISO 1302


• Plane, RF (raised faced) for versions to ASME

Tapping sockets

(For the dimensions of the following tapping sockets, see page 4/xxx)

• With connection thread G½ DIN ISO 228/1, connection dimensions to DIN 19207 form V


• With threaded connection ½-14 NPT male, for version to ASME


• With Ø 12 mm pipe connection for pipe union with ferrule


• With welding connection, Ø 21.3 mm

For length of tapping sockets for all metering pipe L = 120 mm and position of tapping socket, see “Technical Description” and “Function