Specifications:
The strainer for heat meters is a Y-type with a union nut and external thread, designed for a nominal pressure (PN) of 20. The body is made of gun metal MS 58, and the screen is constructed from stainless steel 1.4301. It features an external thread connection according to DIN 259 and can withstand a test pressure of 30 bar. Special features include the union nut.

Dimensions and Article Numbers:
- For DN 3/4": Length (L) is 73.5 mm, center line to end of cover (A) is 52 mm, mesh width is 1.00 mm, weight is 0.30 kg, and article number is 1006116702000.
- For DN 1": Length (L) is 89 mm, center line to end of cover (A) is 60 mm, mesh width is 1.00 mm, weight is 0.43 kg, and article number is 1006116702500.
Fine screens have a mesh width of 0.25 mm and a free area of 37%. When ordering with a fine screen, add "F-SIEB" to the article number.

Performance Parameters:
- For DN 3/4": Free screen area is 38%, KVS1 (standard screen) is 7.857 m3/h, and KVS2 (fine screen) is 80.
- For DN 1": Free screen area is 38%, KVS1 (standard screen) is 11.08 m3/h, and KVS2 (fine screen) is 90.

Standards and Compliance:
The strainer complies with the Pressure Equipment Directive (PED) 97/23/EG, specifically point 8 and 9 of the preamble, article 1, clause 3, and article 3, clause 3.

Contact Information:
Ludemann Armaturen GmbH, Broichstraße 52, D-51109 Köln, Germany. Phone: +49 (0) 221 - 93 35 34-0, Fax: +49 (0) 221 - 93 35 34-29, Email: [email protected].
Ludemann Robinetterie FR, Ludemann Appendages NL, Filmeaco GB.