OPERATION AND MAINTENANCE MANUAL
12-2015
11
2.6 MANUFACTURE AND ACCEPTANCE
Cast iron flange valves Type 7110, typ 7050 and threded Typ 7040
are manufactured and
commissioned according to: PN-EN 1074-4: 2002 (Valves for water supply. Fitness for purpose
requirements and appropriate verification tests. Part 4 Air valves) and PN-EN 12266-1: 2003
(Industrial valves. Testing of valves). All valves (100%) are tested for sealability. Outer body
sealability is tested and closed sealability in low and high pressure.
2.7 MARKING
Valve marking is governed by standards: PN-EN-19: 2005, PN-EN-1074-1: 2002.
Valve bodies have markings placed on the front and back wall of the chamber body, which
include the following data:
- nominal diameter
- nominal pressure
- type of body material
- producer trade mark
and a ledge to include an identification mark (e.g. series no.)
3 PROTECTION — STORAGE — TRANSPORTATION
3.1 PROTECTIVE COATINGS
All internal and external cast iron surfaces are protected with epoxy paint, applied electrostatically. The
paint is approved for contact with food products.
The thickness of the anti-corrosion coating layer is min. 250
µ
m.
Mould surface is prepared for the application of the epoxy coating in accordance with the technical
documentation and PN-EN ISO 12944-5: 2009.
The screws connecting the body and the cover are manufactured as stainless, grade OH18N9 or Fe/Zn5
(galvanised steel).
3.2 PACKAGING
Cast iron flange valves TYPE 7010, TYPE 7050 and threaded TYPE 7040 are packaged on
EURO pallets (1200x800) and secured with a heat shrinked hood.
3.3 STORAGE
Cast iron flange valves TYPE 7010, TYPE 7050 and threaded TYPE 7040 should be stored
indoors.