Disk-type non-return valve
12012, 12013, 12024, 12033 / 12017 / 12019
BA_012013.10_EN
7 / 8 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2018-11-14
Type 12019
Replacing the sealing rings:
• Loosen the outer screws (4) on the housing flanges.
• Take out the intermediate housing (2).
• Take the guide star (3) out of the intermediate housing (2).
• Take out the valve disk (9) and pressure spring (8).
• Replace the housing O-rings (5), star O-ring (6) and disk O-ring (7).
• Cover new seals with a thin film of grease during re-installation, use seal grease
TURMSILON LMI 5000.
Fig. 3: Schematic representation
1 Housing flange
2 Intermediate housing
3 Guide star
4 Screws
5 O-ring
6 O-ring
7 O-ring
8 Pressure spring
9 Valve disk
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