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377 Trip Valve
June 2017
Table 1. Specifications (continued)
Declaration of SEP
Fisher Controls International LLC declares this
product to be in compliance with Article 4 paragraph
3 of the PED Directive 2014/68/EU. It was designed
and manufactured in accordance with Sound
1. The pressure/temperature limits in this document and any applicable standard or code limitation should not be exceeded.
2. If the trip point is not specified, the trip point is factory set at 72 percent of supply pressure or 2.8 bar (40 psig), whichever is higher.
3. Values represent nominal C
measures for each port pair using a trip valve/actuator combination.
v
Figure 4. Maximum Trip Point Settings
SUPPLY PRESSURE, BAR
4
5
6
110
100
90
80
70
60
50
40
55
60
70
80
90
SUPPLY PRESSURE, PSIG
NOTES:
1
TRIP POINT MAY BE SET TO ANY VALUE BETWEEN 2.8 BAR (40 PSIG) AND THE MAXIMUM TRIP POINT LINE.
2
RESET OCCURS AT 12.5 TO 33 PERCENT ABOVE ADJUSTED TRIP POINT.
A2779‐2
Installation
WARNING
Avoid personal injury from sudden release of process pressure. Before mounting the controller:
D Always wear protective clothing, gloves, and eyewear when performing any installation operations to avoid personal
injury.
D Overpressuring any system component could result in personal injury or property damage due to fire and explosion
caused by venting or leakage of the supply medium. To avoid such injury or damage, provide suitable pressure‐relief or
pressure‐limiting devices if the supply pressure is capable of exceeding the maximum allowable pressure of the system
component.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
D If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
4
10.3
7
8
9
10
2
MAXIMUM TRIP POINT
SETTING TO ENSURE
RESET
1
100
110
120
130
140
150
Engineering Practice (SEP) and cannot bear the CE
marking related to PED compliance.
However, the product may bear the CE marking to
indicate compliance with other applicable European
Community Directives.
7.6
7
6
5
4
3
Instruction Manual
D200319X012
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