Jafar 2502 Manuel d'utilisation et d'entretien - Page 4

Parcourez en ligne ou téléchargez le pdf Manuel d'utilisation et d'entretien pour {nom_de_la_catégorie} Jafar 2502. Jafar 2502 9 pages. Gate valves with soft seals and opening indicator

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hexagon socket head cap screws mounted flush with the valve cover and secured with paraffin compound. The
fastening bolts are either galvanized steel or stainless steel. The valve cover to body seal is a rubber gasket which
also seals the bolt penetration points to prevent any leaks from their leads. All inner and outer cast-iron surfaces
of the valve are epoxy powder coated. The spindle is driven by a hand wheel.

2.2 MATERIALS

The table below lists the structural materials of the gate valves with soft seals.
Item
Part designation
1
Body
2
Cover
3
Wedge
4
Skid
5
Spindle
6
Link
7
Pointer
8
Indicator dial
9
Sealing plug
10
Spindle nut
11
Valve cover gasket
12
O-ring
13
O-ring
14
Bolt
15
Bolt plug
16
Washer
17
Nut
18
Set screw
19
Hand wheel
Material
Cast-iron, EN-GJS-400-15
EN-GJS-500-7
Cast-iron, EN-GJS-400-15
EN-GJS-500-7
Cast-iron, EN-GJS-400-15
EN-GJS-500-7
Rubber, EPDM/NBR
Polyamide
Steel grade 1.4057 / 1.4021
Grey cast-iron, EN-GJL-250
Polyethylene
Brass
Polyethylene
Steel grade 1.4021
Bronze, copper
Bronze, copper
Rubber: EPDM/NBR
Rubber: EPDM/NBR
Rubber: EPDM/NBR
Steel, Fe/Zn5, stainless steel
Paraffin
Polyamide PA6
Steel, Fe/Zn5, or stainless steel
Stainless steel
Grey cast-iron, EN-GJL-250
OPERATION AND MAINTENANCE MANUAL
Reference standard
EN 1563
EN 1563
EN 1563
EN 1629
EN ISO 1874-1
EN 10088
EN 1561
EN ISO 1872-1
EN 1982
EN ISO 1872-1
EN10088-1
EN 1982
EN 1982
ISO 1629
ISO 1629
ISO 1629
EN ISO 4762
acc. to manufacturer's Technical
Guidelines
EN ISO 1874-1
EN ISO 4032
EN ISO 4027
EN 1561
12-2016
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