Safety Shutdown Valves Control System Valve Ssv Brochure
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Safety Shutdown Valves Control System
Delivering reliable safety and protection to wells and flowlines
Safety Shutdown Valves Control System
Safeguarding wells and
flowlines is a constant
concern for operators
no matter what the
environment. The operator
must have total control
of the well at all times,
being able to close the
fail position of the valve
upon hydraulic pressure
loss or to perform an
emergency shutdown.
The Cameron Safety
Shutdown Valve Control
(SSV) system’s self-
contained control unit,
which can be adapted
to work with other
components in various
configurations, is designed
with field service and
minimal downtime in
mind. When an abnormal
condition occurs, the SSV
and controls must be
manually reset to be put
back into service.
A protective enclosure
protects the system against
the elements.
The self-contained control unit is shown on a linear actuator, which helps to operate a 3⁄-in API 6A gate valve. The
control is displayed as if the optional pilot valve (not illustrated) were installed on the pipeline. Custom tubing connections
made between the control and pilot valve are required.
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■ Manifold design subplate provides a robust
foundation for integration of all standard and
optional control system components.
■ Subplate and control components are
constructed of corrosion-resistant anodized
aluminum with stainless steel internals.
■ Oil reservoir is a rugged fabrication of
stainless steel to withstand harsh working
environments and provide a corrosion-free
environment for the fluid.
■ Hand pump available in 5,000 psig [345 barg]
output pressure to minimize actuator sizing
and reduce necessary fluid capacities.
■ Manual arming valve arms the system and
provides quick fail-safe manual response in
the event of an emergency.
■ Bright red-colored handle on manual arming
valve provides highly visible local verification
of system status being armed or tripped.
■ Dual filtration within hydraulic circuit
ensures only contaminant-free hydraulic
fluid is moving within the system to extend
zero-leak performance.
■ Reduced pressure control system provides
access to a broad range of low-pressure,
zero-leakage control options (e.g., pilot valves,
low-wattage solenoids, fusible plugs, etc.).
■ Temperature compensation of a high-
pressure actuator circuit and a low-pressure
control circuit is accomplished with two
separate accumulators. This assures system
stability by reducing relief valve operation
and eliminating valve creep due to extreme
temperature changes.
■ Overpressure protection of a high-pressure
actuator circuit and a low-pressure control
circuit is provided with two separately
designated relief valves. This isolates the
relief valve operation to abnormally excessive
pressure, which reduces potential leak points
that result in valve drift.
■ Seal material is selected to exceed ambient
conditions of the end destination to assure
zero-leakage integrity throughout a range of
−50to 212degF [−46to 100degC].
■ Stainless steel pressure gauges with dual-
scale indication ensures easy verification
of high- and low- pressure circuit
operating pressure.
■ Liquid level gauge easily confirms proper
operating level of hydraulic fluid in
oil reservoir.
■ Manifold porting provides spring return
actuators with a closed-loop exhaust circuit
to eliminate detrimental effects of airborne
contaminants entering the actuator cylinder.
Standard Features
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Simple operation
To open: Set arming valve to ready position and operate hand pump until
actuator has reached full open position. For remote option, solenoid valve
also must be energized prior to hand pumping. For automatic option, a
normal sensing pressure also must be available to pilot valve prior to
hand pumping.
To close: For local operation, manually trip arming valve to fail position.
For remote option, de-energizing solenoid valve will trip arming valve to fail
position. For automatic option, any abnormal increase or decrease of pilot
sensing pressure will trip arming valve to fail position.
SSV self-contained control unit.
Self-Contained Control
Utilizing a hand pump with various control components, a zero-leakage circuit is
maintained to ensure valve movement does not inadvertently occur until a fail-safe
signal is received. Controls are typically pilot tripped, but solenoids also can be utilized
for remote control where electricity is available. The control must be manually reset after
a fail-safe operation has occured.
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Output to
SSV
Spare H/P 2X
Spare L/P 2X
Spare vent
PSH
50 psi
PSHL
test/vent
PSHL
flowline
press
PSL
1
2
3
4
5
6
17
18
10
14
12
13
7
16
9
15
8
11
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Schematic Diagram
1. Hydraulic cylinder
2. Hand pump
3. Oil filter‡
4. Oil tank
5. Pressure gauge 5,000 psi
6. Pressure gauge 300 psi
7. Hydraulic press sensor (PSH)
8. Hydraulic press sensor (PSL)
9. 3-way ball valve 6,000 psi
10. Hydraulic piloted valve
11. Check valves (pump suction & discharge)
12. Pressure regulator 6,000 psi inlet,
250psi outlet
13. Valve (PSV) set 5,500 psi‡
14. Safety valve (PSV) set 100 psi‡
15. Fusible plug
16. Fill/vent cap
17. Accumulator (high pressure)
18. Accumulator (low pressure)
The schematic diagram is shown with the valve in closed position and without hydraulic power.
‡ Components installed inside tank
Hydraulic connections
Connections at customer's care
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Available Options
Control enclosure
Lockable, stainless steel fabrication allows unrestricted access for local
emergency trip function while ensuring only authorized personnel have
access to the entire control system.
Transparent reservoir
Made of UV and impact-resistant materials suitable for a broad
temperature range of −50 to 140degF [−45 to 60degC] to provide full
visual verification of available oil.
Pilot valve
Customer-preferred models can be readily connected into the circuit
onboard the manifold or pipeline to provide automatic operation of the
shutdown system.
Solenoid valve
Subplate or in-line mounted for easy field retrofit with low-
power consumption coils provides efficient remote control of the
shutdown system.
Fusible plug
Quickly trips circuit to shutdown position when exposed to the rising
temperature of a fire.
Instrumentation kit
All tube fittings, tubing, and fasteners are required to easily mount
and connect any pilot or solenoid valve into the shutdown system
(shipped loose).
Instrumentation manifold
Provides a rugged transition from the pipeline when direct mounting of
pilot valve(s) to the pipeline is desired (shipped loose).
Rugged stainless steel oil reservoir to withstand harsh working environments Bright red-colored handle on manual arming valve for highly visible verification
of local system status.
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Hydraulic Actuator
Fail-safe design
Upon loss of hydraulic pressure, the actuator will position the gate of the valve in the required
position. The fail-closed and fail-open positions are determined by whether a reverse- or direct-acting
gate is installed. All Cameron MH70 actuators are designed to provide adequate spring force to return
the valve to the fail position without the assistance of the valve’s working pressure.
Rising and non-rising stem designs
MH70 actuators are available in both rising and non-rising stem designs. Both designs visually
indicate the position of the valve. The rising stem design features an external shaft that provides the
visual indication. The non-rising stem design, which has a shorter profile than the rising stem design,
features a viewing window inside the housing that provides visual indication.
Head and housing orientation
MH70 actuators provide a full 360° rotation of both the head and housing. This feature allows the
hydraulic inlet port, viewing window, and housing mounted proximity switches to be located where
desired, thus offering flexibility during field installation of the controls.
Non-pressurized housing
All MH70 actuators feature a non-pressurized housing. The piston is conveniently located at the top of
the actuator assembly, which allows for easy and timely seal replacement.
Superior piston design
Our MH70 actuators feature a stainless steel piston. Most variations of the rising stem design include
a single-piece piston and top shaft. This layout, when combined with T-seals, provides positive
sealing and extended service. All pistons have been engineered to reduce the required swept volumes
and to provide faster closing times.
Cameron sealing technology
All MH70 actuator bonnet and valve stem assemblies utilize Cameron advanced valve stem
seal designs.
Fixed drift adjustment
Stainless steel spacers are installed during the initial manufacturing stage and provide a secondary
means of setting the valve drift. Subsequent removal and replacement of the actuator does not affect
the drift setting.
Corrosion-resistant materials
Excluding the springs, all non-stainless components are externally coated with Ever-Slik† corrosion-
resistant coating. Springs are provided with a superior Semagard corrosion-resistant coating.
Note: See MH70 actuator product data sheet for product data and control pressure information.
Standard actuator data
■ API 6A actuators available for use with 1⁄- through 9-in nominal
gate valves
■ API 6A, Appendix F, PR2 qualified
■ −20 to 250degF [−29 to 121degC] standard temperature rating
■ 3- to 10-in standard piston sizes for above referenced valve groups
■ 6,000-psi maximum operating pressure
■ 9,000-psi test pressure
■ Standard ⁄-in NPT inlet port
■ Wide range of options and accessories available
Standard bonnet data
■ Standard stem and bonnet materials are API material/temperature
class dependent
■ PSL 1, 2, 3, and 3G available
■ Standard bonnet backseat test port provided
■ Standard packing leak indicator port provided
All MH70 actuators utilize a superior design to provide
faster closing times, extended service and resist corrosion.
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M Saf-T-Seal Actuated Gate Valve
The M Saf-T-Seal* API 6A power-actuated fullbore through-conduit gate valve is the
power-actuated version of the Model M gate valve. It features a cast body and slab-
style gate and is readily adapted to multiple actuator designs. The MSaf-T-Seal gate
valve is available in 2⁄- through 4⁄-in nominal sizes; in 2,000- to 5,000-psi WP; and
with either flanged, threaded, or clamp-hub end connections.
Features and benefits
■ Metal-to-metal sealing (e.g., gate-to-seat and seat-to-body), with PTFE soft-seal backup
ring between the gate and seat surface
■ Bi-directional design with simple, reliable slab gate and disk seats
■ Full-bore, through-conduit design eliminates turbulence and pressure drop
■ Seat skirts reduce loss of body filler grease
■ Metal-to-metal bonnet seal
M Saf-T-Seal actuated gate valve.
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FL/FLS Power Actuated Gate Valves
The FL* API 6A slab-style gate valve and FLS* extreme service API 6A slab-style gate
valve feature a forged body and slab-style gate and are readily adapted to multiple
actuator designs. They are both available with either flanged, threaded, or clamp-hub
end connections. The FL power actuated gate valve is available in 2⁄- through 4⁄-in
nominal sizes, from 2,000 to 5,000 psi WP, while the FLS power-actuated gate valve is
available in pressure ratings from 2,000 to 20,000 psi and bore sizes from 1⁄ to 11 in.
The FLS gate valve is our standard valve for critical requirements, including extreme sour
and subsea applications.
Features and benefits
■ Bi-directional design provides flow-direction versatility and
increased service life
■ Positive metal-to-metal sealing (e.g., gate-to-seat and seat-to-body)
■ Simple, reliable gate, and seat designs promote ease of field
service and minimal spare parts inventory
■ The FL gate valve incorporates one lip seal and FLS gate valve
incorporates two lip seals between the seat and body. These lip
seals are spring-loaded, pressure-energized, non-elastomeric seals
that assist in low-pressure sealing and protect intrusion of particle
contaminants into the body cavity and seal areas
■ Metal-to-metal bonnet seal
FLS gate valve design incorporates two spring-loaded, pressure-energized, non elastomeric lip seals.
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Gate Valve Application
M Saf-T-Seal FL FLS
API 6A temperature ranges
−20 to 250degF [−29 to 121degC] ● ● ●
−50 to 250degF [−46 to 121degC] ● ● ●
−75 to 250degF [−60 to 121degC] ●
API 6A material class
AA—general service ● ● ●
BB—general service ● ● ●
CC—general service ● ● ●
DD—sour service†● ● ●
EE—sour service†● ● ●
FF—sour service†● ● ●
HH—sour service†●
API 6A product specification level
PSL 1 ● ● ●
PSL 2 ● ● ●
PSL 3 ● ●
PSL 3G ● ●
† As defined by NACE Standard MR0175/ISO 15156.
M Saf-T-Seal Gate Valve Trim Materials
API 6A material class Body material Gate material/coating Seat material/coating
AA—general service Alloy steel Alloy steel/nitrided Alloy steel/nitrided
BB—general service Alloy steel Stainless steel/nitrided Stainless steel/nitrided
CC—general service Stainless steel Stainless stee l/nitrided Stainless steel/nitrided
DD—sour service†Alloy steel Alloy steel/nitrided Alloy steel/nitrided
EE—sour service†Alloy steel Stainless steel/nitrided Stainless steel/nitrided
FF—sour service†Stainless steel Stainless steel/hard-faced Stainless steel/hard-faced
† As defined by NACE Standard MR0175/ISO 15156.
Note: Specifications are subject to change without notice. Special trims are available upon request.
M Saf-T-Seal Gate Valve (Prepped for Actuator) Dimensional Data
Nominal
size, in
Working
pressure, psi
End
connection
Dimensions, in [mm] Weight—
flange, lbm [kg]
End to end Body width Bore to bonnet face Bore to bottom
2⁄ 2,000 Flange 11.62 [295.1] 6.12 [155.4] 4.84 [123.0] 4.94 [125.5] 80 [36]
3,000 Flange 14.62 [371.3] 7.25 [184.2] 4.84 [123.0] 5.06 [128.5] 135 [61]
5,000 Flange 14.62 [371.3] 7.25 [184.2] 4.84 [123.0] 5.06 [128.5] 135 [61]
2⁄ 2,000 Flange 13.12 [333.2] 7.12 [180.8] 5.63 [142.9] 5.75 [146.1] 110 [50]
3,000 Flange 16.62 [422.1] 7.88 [200.2] 5.63 [142.9] 5.94 [150.9] 180 [82]
5,000 Flange 16.62 [422.1] 7.88 [200.2] 5.63 [142.9] 5.94 [150.9] 180 [82]
3⁄ 2,000 Flange 14.12 [358.6] 8.50 [215.9] 7.13 [181.0] 7.06 [179.3] 150 [68]
3,000 Flange 17.12 [434.8] 9.25 [235.0] 7.13 [181.0] 7.31 [185.7] 215 [98]
5,000 Flange 18.62 [472.9] 9.25 [235.0] 7.13 [181.0] 7.31 [185.7] 240 [109]
4⁄ 2,000 Flange 17.12 [434.8] 10.75 [273.1] 8.38 [212.7] 8.94 [227.1] 290 [132]
3,000 Flange 20.12 [511.0] 12.25 [311.2] 8.38 [212.7] 9.06 [230.1] 410 [186]
5,000 Flange 21.62 [549.1] 12.25 [311.2] 8.38 [212.7] 9.06 [230.1] 445 [202]
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FL and FLS Gate Valves (Prepped for Actuator) Dimensional Data
Nominal
size, in
Working
pressure, psi
Dimensions, in [mm] Weight,
lbm [kg]
End to end Body width Bore to bonnet face Bore to bottom
1⁄ 10,000 18.25 [463.6] 9.00 [228.6] 3.88 [98.6] 5.75 [146.1] 180 [82]
15,000 18.00 [457.2] 9.50 [241.3] 3.88 [98.6] 5.88 [149.4] 230 [104]
20,000 21.00 [533.4] 11.38 [289.1] 3.88 [98.6] 7.88 [200.2] 450 [204]
2⁄ 2,000 11.62 [295.1] 6.09 [154.7] 3.85 [97.8] 5.28 [134.1] 74 [34]
3,000 14.62 [371.3] 7.00 [177.8] 3.85 [97.8] 5.50 [139.7] 127 [58]
5,000 14.62 [371.3] 7.00 [177.8] 3.85 [97.8] 5.50 [139.7] 127 [58]
10,000 20.50 [520.7] 9.00 [228.6] 3.88 [98.6] 5.62 [142.7] 197 [89]
15,000 19.00 [482.6] 9.62 [244.3] 3.88 [98.6] 5.88 [149.4] 244 [111]
20,000 23.00 [584.2] 11.75 [298.5] 4.55 [115.6] 7.50 [190.5] 661 [300]
2⁄ 2,000 13.12 [333.2] 7.00 [177.8] 4.66 [118.5] 6.00 [152.4] 109 [50]
3,000 16.62 [422.1] 7.88 [200.2] 4.66 [118.5] 6.00 [152.4] 184 [84]
5,000 16.62 [422.1] 7.88 [200.2] 4.66 [118.5] 6.00 [152.4] 184 [84]
10,000 22.25 [565.2] 9.38 [238.3] 4.70 [119.3] 6.75 [171.5] 301 [136]
15,000 21.00 [533.4] 11.25 [285.8] 4.88 [124.0] 7.75 [196.9] 449 [204]
20,000 26.50 [673.1] 14.62 [371.3] 6.50 [165.1] 10.00 [254.0] 988 [448]
3⁄ 10,000 24.38 [619.3] 10.12 [257.0] 5.60 [142.3] 8.12 [206.2] 408 [185]
15,000 23.56 [598.4] 13.75 [349.3] 6.13 [155.8] 9.75 [247.7] 726 [329]
20,000 30.50 [774.7] 16.00 [406.4] 8.94 [227.0] 11.52 [292.7] 1,837 [833]
3⁄ 2,000 14.12 [358.6] 7.88 [200.2] 5.57 [141.5] 7.12 [180.8] 173 [79]
3,000 17.12 [434.8] 8.38 [212.9] 5.57 [141.5] 7.25 [184.2] 213 [96]
5,000 18.62 [472.9] 9.12 [231.6] 5.57 [141.5] 7.25 [184.2] 260 [118]
4⁄ 10,000 26.38 [670.1] 12.75 [323.9] 7.23 [183.6] 10.25 [260.4] 713 [324]
15,000 29.00 [736.6] 14.50 [368.3] 7.70 [195.5] 11.62 [295.1] 1,136 [515]
20,000 35.50 [901.7] 18.75 [476.3] 8.92 [226.6] 14.62 [371.3] 2,868 [1,301]
4⁄ 2,000 17.12 [434.8] 9.62 [244.3] 7.20 [182.8] 9.00 [228.6] 292 [132]
3,000 20.12 [511.0] 10.38 [263.7] 7.20 [182.8] 8.75 [222.3] 351 [159]
5,000 21.62 [549.1] 10.75 [273.1] 7.20 [182.8] 9.88 [251.0] 468 [212]
5⁄ 2,000 22.12 [561.8] 11.00 [279.4] 8.85 [224.8] 12.62 [320.5] 831 [377]
3,000 24.12 [612.6] 13.00 [330.2] 8.85 [224.8] 12.75 [323.9] 852 [387]
5,000 28.62 [726.9] 11.50 [292.1] 8.85 [224.8] 12.62 [320.5] 984 [446]
10,000 29.00 [736.6] 14.50 [368.3] 9.44 [239.7] 13.25 [336.6] 1,013 [459]
15,000 35.00 [889.0] 17.75 [450.9] 10.69 [271.5] 15.00 [381.0] 2,136 [969]
6⁄ 5,000 29.00 [736.6] 14.12 [358.6] 10.32 [262.1] 12.88 [327.2] 1,021 [463]
6⁄ 2,000 22.12 [561.8] 12.38 [314.5] 10.32 [262.1] 12.88 [327.2] 785 [356]
3,000 24.12 [612.6] 12.62 [320.5] 10.32 [262.1] 12.88 [327.2] 864 [392]
5,000 29.00 [736.6] 14.12 [358.6] 10.32 [262.1] 12.88 [327.2] 997 [452]
10,000 35.00 [889.0] 18.00 [457.2] 10.00 [254.0] 14.62 [371.3] 2,118 [960]
15,000 41.00 [1,041.4] 23.88 [606.6] 12.00 [304.8] 21.50 [546.1] 5,691 [2,581]
7⁄ 5,000 32.00 [812.8] 17.38 [441.5] 11.88 [301.6] 14.75 [374.7] 2,243 [1,017]
10,000 35.00 [889.0] 18.88 [479.6] 13.35 [339.1] 18.07 [459.0] 3,121 [1,416]
15,000 41.00 [1,041.4] 24.00 [609.6] 12.00 [304.8] 22.75 [577.9] 5,663 [2,568]
95,000 41.00 [1,041.4] 23.12 [587.2] 9.75 [247.7] 9.75 [247.7] 3,784 [1,716]
FL/FLS Gate Valve Trim Materials
API 6A material class Body material Gate material/coating Seat material/coating
AA—general service Alloy steel Alloy steel/nitrided Alloy steel/nitrided
BB—general service Alloy steel Stainless steel/hard-faced Stainless steel/hard-faced
CC—general service Stainless steel Stainless steel/hard-faced Stainless steel/hard-faced
DD—sour service†Alloy steel Alloy steel/hard-faced Stainless steel/hard-faced
EE—sour service†Alloy steel Stainless steel/hard-faced Stainless steel/hard-faced
FF—sour service†Stainless steel Stainless steel/hard-faced Stainless steel/hard-faced
HH—sour service† (FLS only) Alloy steel clad with alloy 625 or solid CRA CRA/hard-faced Solid colbalt alloy steel or CRA/hard-faced
† As defined by NACE Standard MR0175/ISO 15156.
Note: Specifications are subject to change without notice. Special trims are available upon request.
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