Pressure Seal Cover | Product Range | Special Specification |
The hinge pin is inserted into the valve body to achieve pressure seal construction. | |
The cover material is a steel forging identical to the body to insure high dependability. The cover construction has a perfect body-cover tightness and ease of dismantling and reassembly are ensured. | |
The arm is of a steel material identical to the body. Larger sized valves are provided with a hinge bushing to reduce friction and to prevent galling. | |
The disc has a sufficient seating surface area which is ground and lapped to mirror finish. It is of one-piece construction and is heat treated to deliver the required mechanical properties hardness. | |
The Stelite 6 surface of the seat ring is integrally applied to the body by means of welding in all valve sizes. Perfect mating with the DISC surfaces attained by a lapping finish applied to the seating. | |
The cylindrically shaped valve body prevents distortion or undue stress under extreme working conditions. Padding is also provided to achieve a sound cast structure in the critical areas. The wall thichkness is greater than, or in accordance with, API, ANSI and ASME requirements. The area contacting the pressure seal gasket has a stainless steel 18/8 inlay to eliminate corrosion or wire drawing. The close tolerances of the inside diameter of this area are attained by accurate machining and honing finish. |
BILL OF MATERIAL
NO |
NAME OF PART |
ASTM SPECIFICATION |
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STANDARD |
HIGH TEMPERATURE SERVICE |
LOW TEMP. |
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1 |
BODY |
A216-WCB |
A217-WC1 |
A217-WC6 |
A217-WC9 |
A217-C5 |
A352-LC1/LC2/LC3 |
2 |
COVER |
A216-WCB |
A217-WC1 |
A217-WC6 |
A217-WC9 |
A217-C5 |
A352-LC1/LC2/LC3 |
3 |
DISC |
A217-CA15 |
A217-WC1 |
A217-WC6 |
A217-WC9 |
A217-C5 |
A352-LC1/LC2/LC3 |
4 |
BODY SEAT RING |
A105+HARD FACE |
A105+HARD FACE |
A105+HARD FACE |
A105+HARD FACE |
A105+HARD FACE |
A182-F304 |
5 |
HINGE PIN |
A276-410 |
A276-410 |
A276-410 |
A276-410 |
A276-410 |
A276-304 |
7 |
ARM |
A216-WCB |
A217-WC1 |
A217-WC6 |
A217-WC9 |
A217-C5 |
A352-LC1/LC2/LC3 |
11 |
BONNET BOLT |
A193-B7 |
A193-B7 |
A193-B7 |
A193-B7 |
A193-B7 |
A320-L7 |
12 |
BONNET NUT |
A194-2H |
A194-2H |
A194-2H |
A194-2H |
A194-2H |
A194-4 |
25 |
PLUG |
A194-2H |
A194-2H |
A194-2H |
A194-2H |
A194-2H |
A194-4 |
33 |
RETAINER |
A276-410 |
A276-410 |
A276-410 |
A276-410 |
A276-410 |
A276-304 |
36 |
BONNET CLAMP |
A216-WCB |
A217-WC1 |
A217-WC6 |
A217-WC9 |
A217-C5 |
A352-LC1/LC2/LC3 |
37 |
GASKET SPACER |
A276-410 |
A276-410 |
A276-410 |
A276-410 |
A276-410 |
A276-304 |
MATERIAL |
A216 WCB A217 WC6, WC9, C5, C12 A352 LCB, LC1, LC2, LC3 A351 CF8, CF8M, CF3, CF3M etc. |
CLASS | 600#, 900#, 1500#, 2500# |
SIZE | 2' ~ 24' |
By-pass Valve | ||||
Drains | ||||
ETC. |
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