Component Description
October 2014
3-26
06-236115-001
3-3.7.4
Manifold EL-Checks, P/N WK-877690-000 and P/N 82-878743-000
Manifold El-Checks are installed at the discharge manifold in a multiple cylinder arrangement
to allow removal of any HFC-227ea cylinder from the manifold while still retaining a closed
system. The 2-inch El-check is used on the 10 through 350 lb size cylinders; the 2½-inch El-
check is used with the 600 lb size cylinder (see Figure 3-29 and Table 3-15 and Table 3-16).
Figure 3-29. Manifold El-Checks
CAUTION
Manifold El-checks are not intended to be used as check valves in main/reserve
systems. Improper use of equipment can cause system malfunction.
Table 3-15. Dimensions, Manifold El-Checks
Part Number
Size
A
B
C
WK-877690-000
2 in
3.93 in (99.8 mm)
4.88 in (123.95 mm)
2 in-11½ NPT
82-878743-000
2½ in
4.96 in (125 mm)
5.76 in (146.3 mm)
2½ in-8 NPT
Table 3-16. Check Valves, Equivalent Lengths
Part Number
Nomenclature
Pipe Type
Equivalent Length
ft
m
81-800327-000
Check Valve, ½ in NPT
40 T & 40 W
7.0
2.13
81-800266-000
Check Valve, ¾ in NPT
40 T & 40 W
17.0
5.18
WK-800443-000
Check Valve, 1 in NPT
40 T & 40 W
12.0
3.66
81-800444-000
Check Valve, 1¼ in NPT
40 T & 40 W
51.0
15.54
81-870152-000
Check Valve, 1½ in NPT
40 T & 40 W
57.0
17.37
81-870151-000
Check Valve, 2 in NPT
40 T & 40 W
165.0
50.29
81-870100-000
Check Valve, 3 in NPT
40 T & 40 W
795.0
242.31
06-118213-001
Swing Check, 2 in
40 T & 40 W
13.4
4.06
06-118058-001
Swing Check, 3 in
40 T & 40 W
13.0
3.96
WK-877690-000
2 in. El Check
40 T & 40 W
12.2
3.71
82-878743-000
2-1/2 in. El Check
40 T & 40 W
13.5
4.11
WK-877690-000 and
WK-283899-000
2 in El check and Flex Hose
40 T & 40 W
16.0
4.88
82-878743-000 and
WK-283900-000
2½ in El check and Flex Hose
40 T & 40 W
17.5
5.33
A
B
VALVE BODY
C
C
CHECK
FOR CONNECTION
TO SYSTEM
ARROW
INDICATES FLOW
Содержание ECS
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