Jafar 2905 Panduan Pengoperasian dan Pemeliharaan - Halaman 7
Jelajahi secara online atau unduh pdf Panduan Pengoperasian dan Pemeliharaan untuk Unit Kontrol Jafar 2905. Jafar 2905 13 halaman. Knife gate valves
Halaman Cetak2.4 STANDARDISATION
PN-EN 1074-1:2002
PN-EN 1074-2:2002
PN-89/H-02650
PN-EN 1092-2: 1999
PN-EN19:2005
PN-EN 12266-1:2012
PN-EN ISO 6708:1998
PN-EN 1559-1: 2011
PN-EN 1561:2012
PN-EN 1563:2012
PN-EN 1370: 2012
PN-EN 10088-1:2014
PN-74/H-84032
PN-EN 1982:2010
PN-EN 12420:2002
PN-ISO 965-1: 2001
PN-ISO 2903:1996
PN-EN ISO 4762:2006
PN-ISO 1629:2005
PN-EN ISO 12944-5:2009
2.5 ORDERING
Fixtures for transport of water belong to specific purpose industrial fixtures, therefore the order needs to
specify:
- catalogue number (equivalent of length),
- intended use e.g. water supply systems.
In addition specify:
- nominal diameter in acc. with PN-EN ISO 6708:1998,
- nominal pressure in acc. with PN-89/H–02650,
- body material in acc. with PN-EN 1563: 2012,
- max. operating temperature in acc. with PN-89/H – 02650.
2.6 PRODUCTION AND ACCEPTANCE
The Type 2005, 2905 two-way flange-to-flange knife gate valves are manufactured and subject to
acceptance as specified in PN-EN 1074-2:2002 (Valves for water supply. Fitness for purpose requirements
and appropriate verification tests. Isolating valves) and PN-EN 12266-1:2012 (Industrial valves. Testing of
valves).
All gate valves (100%) are subject to tightness tests. The external tightness of the body and the
tightness of closure are verified.
2.7 MARKING
The marking meets the requirements of the PN-EN-19:2005 and PN-EN-1074-1:2002.
The valve bodies feature markings on the front and back walls of the body chamber (or on the side walls
from DN300 to DN1000). The marking contains the following data:
Valves for water supply. Fitness for purpose requirements and appropriate
verification tests. General requirements.
Valves for water supply. Fitness for purpose requirements and appropriate
verification tests. Isolating valves.
Fixtures and pipelines Pressures and temperatures.
Flanges and their joints. Circular flanges for pipes, valves, fittings and
accessories, PN designated. Cast iron flanges.
Industrial valves. Marking of metallic valves.
Industrial valves. Testing of valves. Pressure tests, test procedures and
acceptance criteria. Mandatory requirements.
Definition and selection of DN (nominal size)
Founding. Technical conditions of delivery. General.
Founding. Grey cast-iron.
Founding. Spheroidal graphite cast iron.
Founding. Surface roughness inspection by visual tactile comparators.
Stainless steels. List of stainless steels.
Spring steel. Types of spring steels.
Copper and copper alloys. Ingots and castings.
Copper and copper alloys. Forgings.
ISO general purpose metric screw threads. Tolerances. Principles and basic
data.
ISO metric trapezoidal screw threads. Tolerances.
Hexagon socket head cap screws.
Rubber and latices. Nomenclature.
Paints and varnishes. Corrosion protection of steel structures by protective
paint systems. Protective painting systems
DOKUMENTACJA TECHNICZNO RUCHOWA
03-2016
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