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Baker Hughes
© 2020 Baker Hughes Company. All rights reserved.
VII. Pre - Installation and Installation Instructions
1. Flange protectors and sealing plugs should not be removed until the valve is ready
to be bolted into the installation, both inlet and outlet. Meticulous care should be
exercised to prevent dirt and other foreign materials from entering the inlet and
outlet ports before installation.
2. Valves, either crated or uncrated, should never be subjected to sharp impact. This
would be most likely to occur while unloading or otherwise moving with a fork
lift truck. While hoisting to the installation, care should be exercised to prevent
bumping valve.
3. Uncrated valves should be moved or hoisted by wrapping chain or sling around
discharge neck, then around upper bonnet structure in such manner as will ensure
the valve is in vertical position during lift, i.e., not lifted in horizontal position.
Caution: Never lift the full weight of the valve by the lifting lever (if so equipped).
Design Features
Baker Hughes's Consolidated 1900/P Series Steam Internals (conventional or
bellows) safety valve is a precision machined device and operates on the force
balance principle.
Types 1900/P1 closed bonnet and P3 slotted bonnet valves have been designed for
steam service in accordance with ASME Code Section I and VIII. Both types come
ready for application and should be handled carefully through receiving, handling,
storage and installation.
Safety valves in organic fluid vaporizer service are totally enclosed and do not have a
lifting lever.
Reliable performance and easy maintenance procedures are characteristics of those
valves when properly installed in applications suitable for their design.
Seat Tightness - Thermodisc™
When the valve closes, a Thermodisc
seat compensates for temperature gradient
around the seating surface.
High Nozzle Guide
Nozzle is guided in the base as close as possible to the nozzle seat.
Low Spindle Bearing
Valve has a low spindle bearing point, assuring proper alignment and load distribution
at the seating surface. This prevents the disc from sliding across the seat on opening
and closing.
Simple Blowdown Adjustment
Single blowdown ring design permits ease of adjustment. Proper blowdown can be
attained by positioning the ring in accordance with Table
11 (Section XVII)
VIII. Introduction
Mount safety valve
only in a vertical
upright position.
Do not lift or
carry valve by
the lifting lever.
