Swing Check Valve : Bolted Cover
For Cast Carbon Steel | For Stainless Steel | Product Range | Special Specification

The body-cover bolting conforms with ANSI B 1.1 The nuts are manufactured to conform with ANSI B18.2.2
The cover material is identical to the body. Depending on the valve size and pressure class, either a casting or forging is used.
The hinge pin is inserted into the valve and held in position by plug. The larger size valves are provided with bolted flanges instead of plugs.
The arm material is identical to the body. Hinge bushing is provided in the larger valve sizes to minimize friction and eliminate seizing.
The bottom seated type seat ring is screwed into body. The seating surface is finished by lapping. The forged seat ring is heat-treated to deliver the best mechanical properties and required hardness.
The disc has a sufficient seating surface area which is ground lapped to a mirror finish. It is of one-piece construction and is heat treated to deliver the required mechanical properties and hardness.
The cast steel body is designed with a wall thickness which is greater at any point than the minimum requirement provided by API Std. 600 or API6D. Port and seat passage dimension conform to ANSI B16.5 Pipe Fitting. The welded-in type seat ring is standard to allow interchangeability. The standard body-bonnet joint is male-female, and the flange is round for all valves.

For Cast Carbon Steel   [top]

NO NAME OF PART

ASTM SPECIFICATION
STANDARD HIGH TEMPERATURE SERVICE LOW TEMPERATURE SERVICE
1 BODY A216-WCB A217-WC6 A217-WC9 A352-LCB
2 COVER A216-WCB A217-WC6 A217-WC9 A352-LCB
3 DISC A217-CA15 A217-WC6 A217-WC9 A352-LCB
4 BODY SEAT RING A105+HARD FACE A105+HARD FACE A105+HARD FACE A182-F304
5 HINGE PIN A276-410 A276-410 A276-410 A276-304
7 ARM A216-WCB A216-WC6 A216-WC9 A352-LCB
8 DISC NUT ANSI 304 ANSI 304 ANSI 304 ANSI 304
9 DISC WASHER ANSI 304 ANSI 304 ANSI 304 ANSI 304
11 BONNET BOLT A193-B7 A193-B7 A193-B7 A320-L7
12 BONNET NUT A194-2H A194-2H A194-2H A194-4
19 EYE BOLT A105 A105 A105 A105
21 PLUG GASKET COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
22 GASKET COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
24 PLUG A105 A105 A105 A105

For Stainless Steel   [top]

BILL OF MATERIAL
NO NAME OF PART ASTM SPECIFICATION
1 BODY A351-CF8 A351-CF8M A351-CF3 A351-CF3M
2COVER A351-CF8 A351-CF8M A351-CF3 A351-CF3M
3 DISC A351-CF8 A351-CF8M A351-CF3 A351-CF3M
4 HINGE PIN A276-304 A276-316 A276-304L A276-316L
5 ARM A351-CF8 A351-CF8M A351-CF3 A351-CF3M
6 DISC NUT A194-8 A194-8 A194-8 A194-8
7 WASHER A240-304 A240-316 A240-304L A240-316L
8 COVER BOLT A193-B8 A193-B8 A193-B8 A193-B8
9 COVER NUT A194-8 A194-8 A194-8 A194-8
10 PLUG BOLT A276-304 A276-316 A276-304L A276-316L
11 PLUG GASKET COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
12 SPLIT PIN A580-304 A580-304 A580-304 A580-304
13 EYE BOLT A307-B A307-B A307-B A307-B
14 GASKET COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
15 NAME PLATE AL./A240-304 AL./A240-304 AL./A240-304 AL./A240-304

Product Range   [top]

MATERIAL A216 WCB
A217 WC6, WC9, C5, C12
A352 LCB, LC1, LC2, LC3
A351 CF8, CF8M, CF3, CF3M
etc.
CLASS 150#, 300#, 600#. 1500#, 2500#
SIZE 2' ~ 32'

Optional Specification   [top]


By-pass Valve
Drains
ETC.