627 Series
6
form with in this regulator. The formation of ice de-
creases the size of the port opening, so the regulator is
unable to supply enough flow to satisfy the downstream
demand. When the downstream pressure falls below the
outlet pressure setting of the Type 627M or 627HM
regulator, the disk assembly of the Type 627Mor
627HMregulator moves off its seat ring, permitting
alcohol to flow into the main gas line. The alcohol
carried to the main regulator by the flow stream pre-
vents additional ice from forming on the seat ring. When
normal flow resumes, and as pressure in the down-
stream system is restored, the Type 627M or 627HM
regulator shuts off.
Startup and Adjustment
Startup
To avoid personal injury or property dam-
age due to explosion or damage to regula-
tor or downstream components during
startup, release downstream pressure to
prevent an overpressure condition on the
diaphragm of the regulator.
T
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(
0
0
2
)
2
,
7
1
(
0
5
2
)
3
0
1
(
0
0
5
1
)
8
3
1
(
0
0
0
2
)
8
3
1
(
0
0
0
2
)
8
3
1
(
0
0
0
2
)
8
3
1
(
0
0
0
2
)
3
,
8
4
(
0
0
7
)
6
,
9
8
(
0
0
3
1
)
4
2
1
(
0
0
8
1
)
8
3
1
(
0
0
0
2
)
8
3
1
(
0
0
0
2
)
8
,
2
2
(
0
3
3
)
6
,
8
3
(
0
6
5
)
0
,
9
6
(
0
0
0
1
)
7
,
2
8
(
0
0
2
1
)
0
1
1
(
0
0
6
1
)
8
,
3
1
(
0
0
2
)
4
,
3
2
(
0
4
3
)
9
,
7
3
(
0
5
5
)
3
,
0
5
(
0
3
7
)
9
,
6
6
(
0
7
9
)
8
2
,
8
(
0
2
1
)
4
,
2
1
(
0
8
1
)
0
,
0
2
(
0
9
2
)
1
,
4
2
(
0
5
3
)
7
,
1
3
(
0
6
4
)
5
4
,
7
(
8
0
1
)
6
6
,
9
(
0
4
1
)
2
,
5
1
(
0
2
2
)
2
,
7
1
(
0
5
2
)
1
,
2
2
(
0
2
3
Table 4. Type 627R Internal Relief Performance
(1)
Содержание 627M
Страница 14: ...627 Series 14 Figure 7 Type 627 Regulator Components 30B3092 D ...
Страница 15: ...627 Series 15 Figure 8 Type 627R Regulator Components 30B3089 D ...
Страница 16: ...627 Series 16 Figure 9 Type 627M Regulator Components 30B6433 C 1 4 INCH NPT CONNECTION ...
Страница 17: ...627 Series 17 Figure 10 Type 627MR Regulator Components 30B6434 D 1 4 INCH NPT CONNECTION ...
Страница 18: ...627 Series 18 Figure 11 Type 627H Regulator Components 31B5374 B ...
Страница 19: ...627 Series 19 Figure 12 Type 627HM Regulator Components 31B9872 B ...