Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones Pagina 7

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OS2 NACE
7
Action by Max. only Min. only
Max. &
Min.
BMS 1
Releasing screw Active Neutral Active
Hook Neutral Active Active
BMS 1
Releasing screw Active
Hook Neutral
BMS 2
Push button Active Neutral Active
Hook Neutral Active Active
SAFETY MANOMETRIC BOX (BMS)
DESCRIPTION AND SPARE PARTS
9 - BMS diaphragm
10 - BMS piston
11 - BMS bellows
Safety
manometric
box (BMS)
base
Safety
manometric
box 1 (BMS 1)
“hook” kit
Safety
manometric
box 2 (BMS 2)
“hook” kit
Safety
manometric
box (BMS)
base
Safety
manometric
box 1 (BMS 1)
“hook” kit
Safety
manometric
box 2 (BMS 2)
“hook” kit
Safety
manometric
box (BMS)
base
Safety
manometric
box 1 (BMS 1)
“hook” kit
Safety
manometric
box 2 (BMS 2)
“hook” kit
N16 N17 N18
* Execution in conformity with the NACE standard MR0175 - 2001 Items in bold are spare parts
DESCRIPTION (BMS)
Impulse line
The impulse line (IS) is connected to the network to be protected
(normally downstream of the regulator).
Impulse type
Depending on the pressure and precision required, different
types of impulse may be used: Diaphragm, Piston or Bellows.
Springs
To cover all pressure ranges, a set of springs of equal length and
diameter, but of different wire diameter (2 to 6.5 mm), may be
used.
Detection
Possible configurations.
12a - BMS 1 max. only
IS
N19
12b - BMS 1 min. only
D2
D1
N20
IS
IS
D2
12c - BMS 1 max.-min.
D1
N21
1
BMS
2
BMS
Description
Diaphragm (Max. and/or Min.) Piston (Max. or Min.) Bellows (Max. and/or Min.)
162 71 27 27 NACE* 17 236 315
Compete box 181 071 181 072 180 999 181 323 180 998 181 073 181 074
BMS 1 Base 181 105 181 106 181 107 181 322 181 108 181 109 181 110
Hook kit 181 111
Compete box 181 084 181 085 181 070 181 069 181 086 181 087
BMS 2 Base 181 105 181 106 181 107 181 108 181 109 181 110
Hook kit 181 112 181 112
Diaphragm 137 906 142 549
Spare parts
Set of O-rings 197 352
400 115
197 352
400 116
Europe, Middle East, and Africa Document Only
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