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One-piece orifice plate, orifice disk form A, B or D (see types of primary differential pressure devices in "Technical description", "Function"); see Ordering data for materials.
Overall length
40 mm to DIN 19205
Nominal diameters
EN: DN 50 to DN 500
ASME: 2 inch to 20 inch
Nominal pressure
EN: PN 6 to PN 315
ASME: class 150 to 2500
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 versions to ASME
Tapping sockets
- With connection thread G DIN ISO 228/1, with connection dimensions to DIN 19207 form V
- With threaded connection -14 NPT male, for version to ASME
- With O 12 mm pipe connection for pipe union with ferrule
- With welding connection, O 21.3 mm
Connection size
The connection size depends on the operating pressure, the temperature of the medium (DIN 19 207 and 19 211) and the medium, e. g.
- For liquids and gases,
- up to PN 160: Thread G or welding connection O 21.3 mm
- from PN 6 and PN 400: Welding connection O 21.3 mm
- > PN 400: Welding connection O 24 mm
- For steam
- up to PN 100: Thread G or welding connection O 21.3 mm
- > PN 100: Welding connection O 24 mm
See "Technical description" and "Function" for position of the tapping sockets.