|
Pressure Class 1500-2500
Forged
carbon steel Piston Type Lift Check Valve, Welded Cover, Renewable/
Integral Seat Ring, Loose Valve
Head.
Technical Diagram
Material Specification
Items No.
|
Description
|
Material
|
01
|
Body
|
ASTM A105
|
02
|
Bonnet
|
ASTM A10S
|
03
|
Spindle
|
13% Cr.SS (No Casting)
|
04
|
Seat
|
13% Cr.SS + Stellite Gr. 6
|
05
|
Wedge
|
13% Cr.SS + Stellite Gr.6
|
07A
|
Gland Boss
|
13% Cr.SS
|
08
|
Gland Flange
|
ASTM A105
|
09
|
Sleeve
|
ASTM A439 Gr.D2
|
10
|
Back Seat
|
Depo.13%Cr.SS/Stellite Gr.6
|
12
|
Hand Wheel
|
M.C.I./FAB STEEL
|
13
|
Hand Wheel Key
|
ASTM A307 Gr.B
|
105
|
Gland Packing
|
Grafoil Die Moulded Rings
|
109
|
Gland Stud
|
ASTM A193 Gr.B7
|
110
|
Gland Nut
|
SS 304/ASTM A194 Gr.2H
|
111
|
Gland Lock Nut
|
SS304/ASTM A194 Gr.2H.
|
113
|
Sleeve Nut
|
ASTM A307 Gr.B
|
122
|
Name Plate
|
Aluminium
|
|
Special Features
|
|
Material
(Body & Bonnet)
|
In grades LF2 / F5 / F9 / F11 / F22 / F304 / F304H / F316 /
F316H / F304L/ F316L / F321 / F321H / F347 etc.
|
|
Trim
|
(AISI 304/ AISI 316/ AISI 321/ AISI 347) + Stellited
|
|
Accessories
|
Various types available to suit customer's requirements.
|
|
Standards
|
|
Valve Standards
|
BS EN 1SO 15761/BS 1873/ASME B16.34 / Indian Boiler Regulation (IBR)
|
|
Inspection & Testing Standard
|
API
598/BS 6755 Part 1 /ASME B16.34 / Indian Boiler Regulation (IBR)
|
|
Ends: Socket weld
Screwed
Butt-Weld
|
ASME B16.11
ASME B1.20.1
ASME B16.25
|
Socket, Screw & Butt Weld Ends
|
|
Size NB.
|
Body & Bonnet
Construction
|
Ends
|
A
|
B
|
|
Class 1500
Piston Type Lift Check Valve
Fig.
No. 15414
|
15
|
Welded
|
SW/SC/BW
|
96
|
71
|
|
20
|
-Do-
|
-Do-
|
115
|
86
|
|
25
|
-Do-
|
-Do-
|
162
|
116
|
|
40
|
-Do-
|
-Do-
|
175
|
117
|
|
Class 2500
Piston Type Lift Check Valve
Fig.
No. 25414
|
15
|
Welded
|
SW/BW
|
115
|
90
|
|
20
|
-Do-
|
-Do-
|
115
|
95
|
|
25
|
-Do-
|
-Do-
|
175
|
115
|
|
40
|
-Do-
|
-Do-
|
190
|
125
|
|
Valves may be offered with IBR Certificate in Form III C
|
All dimensions are in mm
|
|
