• Two support rings with replaceable orifice disk form A, B or D (see types of primary differential pressure devices in "Technical description", "Function"); see Ordering data for materials
• Graphite gasket with noncorrosive metal foil insert between orifice disk and support ring outlet

Overall length

65 mm to DIN 19205

Nominal diameters

EN: DN 50 to DN 1000

ASME: 2 inch to 40 inch

Nominal pressure

EN: PN 6 to PN 100

ASME: class 150 to 600

Sealing face to the mating 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 version to ASME

Tapping sockets

For the dimensions of the following tapping sockets, see "Function":

• 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

See "Technical description" and "Function" for position of the tapping sockets.