handtmann 491 - Page 12

Description of Function
12 / 34
DOUBLE-SEAT VALVE (Type 491)
BA 049100.06 EN 29.06.2016
02
Fig.1: Double-seat valve type 491
1 Electric feedback
2 Upper venting bore hole (leakage display quad ring)
3 CIP piping
4 Flush pipe connection (pipe ∅ 8 mm)
5 Leakage chamber outflow (leakage display seat sealings)
6 Lower venting bore hole (leakage display quad ring)
7 Air connection (PK 4 ∅ 6/4 mm)
8 Flushing chamber outflow (leakage display lip sealing)
3
4
7
5
1
2
6
8