HG/T 20519.39-1992 Gasket Code

HG/T 20519.39-1992 Gasket code HG/T20519.39-1992 Standard download decompression password: www.bzxz.net

Gasket code
HG 20519.39-92
Gasket code
HG 20519.39-92
Gasket code is composed of the gasket structure type code, basic material or jacket material code and filling material code: Filling material code (Table 2)
Structural type code
Table (1)
Typical section
(Gaskets that do not require filling materials have no such code) Basic material or jacket material code (Table 3) Gasket structure type code
Structural type
Non-metal Flat gaskets for smooth, concave and convex, and grooved flanges Non-metallic flat gaskets for full-face smooth flanges Table 1
Spiral wound metal gaskets, non-metallic filler, no locating ring, for concave and convex flanges Spiral wound metal gaskets, non-metallic filler, with carbon steel integral external locating ring, for smooth flanges
Jinchu jacketed gaskets, with non-metallic filler, fully sealed in a fully annealed metal jacket
Corrugated metal jacketed gaskets, non-metallic filler , the packing is completely sealed in the fully annealed gold screen double-layer corrugated jacket
Corrugated metal gasket, fully annealed corrugated metal plate, and the filling material is adhered on both sides
Metal toothed gasket. Apply oily filling material on the tooth surface. Integral metal flat gasket, used for sample groove surface flange Integral metal flat gasket, used for concave and convex surface flange Integral metal octagonal ring gasket
Integral metal oval gasket
Typical section
Structural type||tt| |Fully annealed corrugated gold pad
High voltage lens pad
O-ring pad
Metallic solder lip pad
Spiral wound gold kitchen gasket, non-metallic filler, with carbon steel integral outer locating ring and integral inner ring identical to the wound metal
Spiral wound gold gasket, non-metallic filler, with integral inner ring identical to the wound metal
Filling material code for seal
Filling material
Blue asbestos||tt| |Polytetrafluoroethylene (maximum 260℃)
Tightened asbestos rope
Rubber asbestos
Cooking oil rubber asbestos
Acid and alkali resistant rubber
Special materials
Basic material or jacket material code for gasketsBasic material or jacket material
Rubber asbestos coated with graphite
Rubber asbestos (XB200)
Rubber asbestos (XB350)
Pressed blue asbestos||tt ||Pressed white asbestos without graphite
Pure rubber
Acid and alkali resistant rubber
PTFE sheet (maximum 177°C)
PTFE impregnated asbestos
PTFE reinforced with glass fiber
Rubber asbestos sheet (Ab), covered with PTFE film
Polyethylene
Soft PVC
Low carbon iron or low carbon steel, maximum HB=120
Cr 5Mo steel, maximum HB=130
18-8 steel, maximum HB=160
18-8Nb steel, maximum HB-160
Cr17Ni13Mo3Ti pot, maximum HB=160
Nickel, maximum Brinell hardness HB=120bzxz.net
Ni67Cu30 (Monel alloy), HB≤125Other metals (metals of the same material as pipes such as lens pads Sa, Sb....|| tt||Basic material or jacket material
Rubber asbestos (XB450)
Oil-resistant rubber asbestos
High temperature oil-resistant rubber asbestos
Graphite asbestos paper
Chloroprene rubber, covered with polytetrafluoroethylene film
Oil-resistant rubber asbestos, covered with polytetrafluoroethylene film Acid-alkali rubber, covered with polytetrafluoroethylene film HB≤160 ultra-low carbon 18-8 steel
HB≤160 ultra-low carbon CrNiMo stainless steel
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