Cameron WHEATLEY 500 Series 설치, 운영 및 유지보수 매뉴얼 - 페이지 8
{카테고리_이름} Cameron WHEATLEY 500 Series에 대한 설치, 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Cameron WHEATLEY 500 Series 9 페이지. Swing check valve
페이지 인쇄
Thoroughly clean the clapper/seat sealing surfaces. Inspect both the clapper and body/seat sealing surfaces for
possible scoring marks or damage. The seating surfaces must be smooth. Inspect the bonnet O-ring seal for
damage. Replace the O-ring if it is damaged. Generally the bonnet O-ring will last longer than the clapper O-ring.
REASSEMBLY
For the removable seat model, make sure the 2 O-rings are installed in the 2 grooves on the seat. Insert the seat
into the bore with sealing surface facing the clapper as shown in Figure 2 and lock this seat ring into position with
the retaining ring snapped fully into the groove.
For all models, insert clapper with the machined sealing surface facing the inlet port. With the clapper arm
positioned into the cavity provided in the body, insert the hinge pin through the clapper and body pin holes.
Ensure that the clapper swings freely inside the body. Install and tighten the pin plugs on either side of the body.
The bonnet is installed on the body and secured to the body by installing and tightening the nuts to the
recommended assembly torques in Table 3 below. Finally, tighten the cover plug on the bonnet and drain plug to
the body (the drain plug is optional on the 1", 2" & 3" valve). The valve should be tested, as required, to the
appropriate specifications.
Stud Diameter. (in)
0.375
0.500
0.625
0.750
0.875
1.000
1.125
1.250
1.375
1.500
1.625
1.750
1.875
2.000
2.250
2.500
Based on the quantity of valves purchased, the following spare parts are recommended for valve maintenance
purposes. Valve serial numbers must be specified when ordering spare parts/kits to ensure supply of correct parts.
TC-003001-13/ Rev 02
Table 3 - Cover Bolting Torque Values
Threads Per Inch (TPI)
16
13
11
10
9
8
8
8
8
8
8
8
8
8
8
8
8
Torque (ft-lbf)
16
- 18
37
- 42
72
- 81
126 - 142
200 - 225
297 - 334
429 - 483
595 - 669
798 - 898
1043 - 1174
1334 - 1500
1673 - 1882
2066 - 2324
2515 - 2829
3600 - 4050
4958 - 5578