Pre-Installation And Installation Instructions; Design Features And Nomenclature; General Information; Design Options - Baker Hughes Consolidated 19000 Series Instruction Manual

VII. Pre-Installation and Installation Instructions
When SRVs are uncrated and the flange protectors or sealing plugs are removed, exercise meticulous care to prevent dirt and
other foreign materials from entering the inlet and outlet ports while bolting the valve in place.
VIII. Design Features and Nomenclature
A. General Information
The Consolidated 19000 Series Portable Safety Relief Valve
has 316 stainless steel trim as standard material. Reliable
performance and easy maintenance procedures are
characteristics of this valve, when properly installed in
suitable applications for its design.
The Consolidated 19000 Series SRV has three pressure
classes—19000L 5-290 psig (0.34-19.99 barg), 19000M
291-2000 psig (20.06-137.90 barg) and 19000H 2001
psig (137.96 barg) and up. Standard Consolidated 19000
Series parts are used for both liquid applications and gas
applications. It is designed for short blowdown on all types
of media, typically less than 10 percent.
All Consolidated 19000 Series safety relief valves have
fixed blowdown. This means that the parts are designed so
that there is no blowdown adjustment required when setting
or testing the valve.
B. Design Options
B.1 Consolidated 19000 Series MS & DA
Safety Relief Valves
O-Ring Seat Seal Valves
All Consolidated 19000 Series Valves are available with an
O-ring seat seal as a design option. This optional design is
bubble tight at 97 percent of set pressures over 100 psig
(6.89 barg), in order to meet application requirements
beyond the normal capabilities of metal to metal seat
valves. Consolidated Series 19000 valves with the O-ring
seat seal option are identified by the suffix DA, see Table
14.
Lifting Levers, Caps and Gags
All Consolidated 19000 Series Valves are designed so that
field conversion from the standard screwed cap to a plain
lifting lever cap, or to a packed lifting lever cap (or vice
versa), does not require valve disassembly or resetting.
The lifting lever option is designed to open the valve at
75 percent of the valve set pressure, in compliance with
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Baker Hughes
ASME Code Section VIII. Further, all available Consolidated
19000 Series Valve caps may be equipped with a gag upon
customer request.
Inlet/Outlet Connections
All Consolidated 19000 Series can be provided by Baker
Hughes Consolidated with flanged, or socket weld inlet and
outlet connections, upon customer request.
B.2 19096M-DA-BP Safety Relief Valves
(See Figure 6)
In this design, the bonnet and the spindle are different—there
are two added parts and two additional O-rings. The bonnet
is a two-piece design rather than a one-piece. The top of the
bonnet (7) is the male piece and it screws into the female
bottom bonnet (8). The bottom bonnet has a machined shelf in
the top on which a metal backup plate (39) seats via an O-ring
(40), part number 310XX030. (The "XX" in the part number
designates the material and durometer of the O-ring.) The
spindle (9) is modified to have a larger diameter in the lower
section to accommodate a 310XX011 O-ring (40), which slides
through the inside diameter of the backup plate (39), providing
an area nearly equal to the area of the base which balances
the effects of the back pressure.
C. Nomenclature
Applicable valve nomenclature for Types Consolidated
19000 Series Male and Female inlet configurations
are illustrated in Figures 1 through 6. Relevant parts
nomenclature for optional lifting levers, caps and the gag,
as applicable, are provided in Figures 1 through 6.
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