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L&T Gate Forged Steel Valve

Lnt Gate Forged Steel Valve

Material Specification (Typical for Fig No. 28101)

Sl. No. Part Description Specification
1 Body ASTM A105
2 Bonnet ASTM A105
3 Stem ASTM A479 Type 410
4 Wedge Disc ASTM A217 Gr. CA15
5 Body Seat Ring ASTM A276 Type 410
6 Stem packing Graphite moulded rings with braided top / bottom rings
7 Gasket Spiral-wound SS type 304 with grahite filler
8 Cap Screws ASTM A193 Gr. B7
9 Gland Bush ASTM A276 Type 410
10 Gland Flange ASTM A105
11 Gland Stud / Nut ASTM A276 Type 410 /ASTM A194 Gr. 2H
12 Yoke Sleeve ASTM A582 Type 416
13 Identification Plate Aluminium (anodised)
14 Handwheel SG Iron / Steel
15 Handwheel Nut Steel

Class 800 Screwed/Socket-weld ends (in inches, unless specified)

Valve size inch (mm) A B C D (min) E F G App. Wt. (kg)
RB FB RB FB RB FB RB FB RB FB
1/4 (8)** 3.15 6.0 - ¼ - 0.555 0.38 3.25 - 0.25 - 1.6 -
⅜ (10) 3.15 6.0 6.0 ⅜ 0.690 0.38 3.25 3.25 0.25 0.38 1.6 1.6
½ (15) 3.15 6.0 6.2 ½ 0.855 0.38 3.25 3.25 0.38 0.50 1.6 2.0
¾ (20) 3.35 6.2 7.5 ¾ 1.065 0.50 3.25 4.00 0.50 0.71 2.0 3.1
1 (25) 3.94 7.5 10.0 1 1.330 0.50 4.00 5.50 0.71 0.94 3.1 6.1
1¼ (32) 4.70 10.0 10.0 1¼ 1.675 0.50 5.50 5.50 0.94 1.19 6.1 6.0
1½ (40) 4.70 10.0 11.4 1½ 1.915 0.50 5.50 7.25 1.19 1.44 6.0 9.1
2 (50)** 5.12 11.4 - 2 - 2.406 0.62 7.25 - 1.44 - 9.1 -
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