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ALCO VALVES SUB-TEK
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manufacturer's website
Under Construction
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SUB SEA BALL VALVES
HEAVY DUTY |

Single isolation ball valves with ROV interface

2" Single isolation ball valve with ROV interface

Subsea gearbox operated ball valve |
1-6" Bore size ball valves ROV
operated High performance direct R.O.V. operated trunnion
mounted ball valve design. High cycle, long service life,
soft seated or metal seated versions available. Low torque,
direct R.O.V. operation with various interfaces to suit
different tools packages. Position indication also available.
Performance verification tested.
+
ANSI and API rated to 5000psi
+ 1" to 2" nominal bore size - 3" to 6" r/bore on application
+ Over torque protection device
+ Superior, long life lip seal technology
+ Double stem and Triple end connector sealing for extra safety
and integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 10,000 feet (3048 Meters)
+ Smooth, low torque R.O.V operation (Also Diver operable)
+ Single isolate, block & bleed and or double block & bleed
versions
+ Various body materials & specifications (see data sheet |
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SUB SEA BALL VALVES
STANDARD AND DEEPWATER SERVICES
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Trunnion Ball Valves; Diver and ROV Operation |
High
Performance, High Cycle, Long Service Life. Soft Seated or Metal
Seated version available. Performance verification tested.
+ Diver and R.O.V. Operable
+ Over torque protection device
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 5mm, 10mm, 13mm, 19mm, 25mm
+ Position indication for ROV operation on request
+ Single isolate, block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 15,000psi
+ Water depths to 10,000 feet (3048 Meters)
+ Various body materials & specifications (see data sheet)
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 Trunnion Ball Valves; ROV
Paddle and Bucket Operation |
Sub
Star tm, High Performance, High Cycle, Long Service Life. Soft
Seated or Metal Seated version available. Performance
verification tested.
+ R.O.V. Operated (Various tool package options)
+ Over torque protection device
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque R.O.V operation
+ Bore Sizes available: 5mm, 10mm, 13mm, 19mm, 25mm
+ Position indication for ROV operation on request
+ Single isolate, block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 15,000psi
+ Water depths to 10,000 feet (3048 Meters)
+ Various body materials & specifications (see data sheet)
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Trunnion Ball Valves; Actuated/Actuator operation |
Sub
Star tm, High Performance, High Cycle, Long Service Life. Soft
Seated or Metal Seated version available. Performance
verification tested.
+ Hydraulic actuation (various styles available)
+ R.O.V. or diver overide available
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 5mm, 10mm, 13mm, 19mm, 25mm
+ Pressure Ranges: ANSI and API to 15,000psi
+ Water depths to 10,000 feet (3048 Meters)
+ Various body materials & specifications (see data sheet)
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3-way Diverter Ball Valves; Diver and ROV operation |
High
Performance, High Cycle, Long Service Life. Soft Seated or Metal
Seated version available. 3-way L ported diverter valve.
Performance verification tested.
+ Diver and R.O.V. Operable
+ Over torque protection device
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 5mm, 10mm, 13mm, 19mm, 25mm
+ Position indication for ROV operation on request
+ Pressure Ranges: ANSI and API to 15,000psi
+ Water depths to 10,000 feet (3048 Meters)
+ Various body materials & specifications (see data sheet)
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SUB SEA BALL VALVES
MEDIUM AND LIGHT SERVICE |

Ball Valves
Floating ball design manual/diver and ROV operation |
Medium and Light Services
Soft
seated, high pressure. High cycle tested, medium depth and
service life design.
+ Over torque protection device
+ Diver and R.O.V. Operable
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 10mm, 13mm, 19mm, 25mm
+ Position indication for ROV operation on request
+ Single isolate, block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 6,000psi
+ Water depths to 5,000 feet (1524 Meters)
+ Various body materials & specifications (see data sheet)
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Ball Valve
3-way diverting ball valve range manual/Diver & ROV operation |
Medium and Light Services
Soft
seated, high pressure. L-ported diverter 3-way, medium depth and
service life design.
+ Over torque protection device
+ Diver and R.O.V. Operable
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 10mm, 13mm, 19mm, 25mm
+ Position indication for ROV operation on request
+ Single isolate, block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 6,000psi
+ Water depths to 5,000 feet (1524 Meters)
+ Various body materials & specifications (see data sheet)
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Ball Valve Floating Ball design ROV Paddle and bucket operated |
Medium and Light Services
Soft
seated, high pressure. Medium depth and service life design.
R.O.V. Bucket and paddle operation
+ Over torque protection device
+ R.O.V. Operable
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 10mm, 13mm, 19mm, 25mm
+ Position indication for ROV operation on request
+ Single isolate, block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 6,000psi
+ Water depths to 5,000 feet (1524 Meters)
+ Various body materials & specifications (see data sheet) |
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SUB SEA NEEDLE VALVES
Medium and Light Services |
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Needle Valve Diver Operated |
High
performance, high cycle, metal seated with metal to metal body
to bonnet seal. Low torque, diver operable via colour coaded 'T'
or 'X' bar handle. Triple stem and body sealing for extra safety
against internal or external leakage. Performance verification
tested.
+ Pressure Ranges: ANSI and API to 10,000psi
+ Bore Sizes available: 6mm, 10mm
+ Over torque protection device
+ Superior, lip seal technology
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 5,000 feet (1524 Meters)
+ Triple stem and body sealing for extra safety and integrity
+ Full outboard / ingress sealing
+ Smooth, low torque operation
+ Position indication for ROV operation on request
+ Single isolate, block & bleed or double block & bleed versions
+ Various body materials & specifications (see data sheet) |
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Needle Valve ROV Operated |
High
performance, high cycle, metal seated with metal to metal body
to bonnet seal. Low torque, direct R.O.V operation with various
interfaces to suit different tools packages. Triple stem and
body sealing for extra safety against internal or external
leakage. Performance verification tested.
+ Pressure Ranges: ANSI and API to 10,000psi
+ Bore Sizes available: 6mm, 10mm, 13mm
+ Over torque protection device
+ Superior, lip seal technology
+ Triple stem and body sealing for extra safety and integrity
+ Full outboard / ingress sealing
+ Smooth, low torque R.O.V. operation
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 5,000 feet (1524 Meters)
+ Position indication available on request
+ Single isolate, block & bleed or double block & bleed versions
+ Various body materials & specifications (see data sheet) |
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SUB SEA NEEDLE VALVES
Standard Services
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Sub Star Needle Valves |
High
performance, high cycle, long service life, metal seated with
metal to metal body to bonnet seal. Low torque, diver operable
via colour coaded 'T' or 'X' bar handle. Triple stem and body
sealing for extra safety against internal or external leakage.
Performance verification tested.
+ Pressure Ranges: ANSI and API to 15,000psi
+ Bore Sizes available: 10mm, 13mm
+ Over torque protection device
+ Superior, long life lip seal technology
+ Triple stem and body sealing for extra safety and integrity
+ Full outboard / ingress sealing
+ Smooth, low torque operation
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 10,000 feet (3048 Meters)
+ Single isolate, block & bleed or double block & bleed versions
+ Position indication available on request
+ Various body materials & specifications (see data sheet) |
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ROV Operation Needle Valves |
High
performance, high cycle, long service life, metal seated, metal
to metal body to bonnet seal. Low torque, direct R.O.V operation
with various interfaces to suit different tools packages. Triple
stem and body sealing for extra safety against internal or
external leakage. Performance verification tested.
+ Pressure Ranges: ANSI and API to 15,000psi
+ Bore Sizes available: 10mm, 13mm
+ Over torque protection device
+ Superior, long life lip seal technology
+ Triple stem and body sealing for extra safety and integrity
+ Full outboard / ingress sealing
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 10,000 feet (3048 Meters)
+ Smooth, low torque operation
+ position indication available on request
+ Single isolate, block & bleed or double block & bleed versions
+ Various body materials & specifications (see data sheet) |
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SUB SEA NEEDLE VALVE
Heavy Duty/Ultra Robust |
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Needle Valve Heavy Duty ROV Operation
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Single turn operation, high performance design suitable for the
most severe services where long service life and high
performance is critical. Metal seated, ROV operable with various
interfaces to suit different tool packages.
+ Pressure Ranges: API to 10,000psi
+ Various body materials & specifications (see data sheet)
+ Bore Sizes available 10mm, 13mm
+ Position indication available on request
+ Full outboard/ingress sealing
+ Single isolate, block & bleed or double block & bleed versions
+ Superior, long life lip seal technology
+ Triple stem and body sealing for extra safety and integrity
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 10,000 feet (3048 Meters)
+ Smooth torque operation |
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Needle Valve Ultra Robust |
Ultra robust high performance design suitable for the most
severe services where long service life and high performance is
critical. Metal seated, ROV operable with various interfaces to
suit different tool packages.
+ Pressure Ranges: API to 15,000psi
+ Various body materials & specifications (see data sheet)
+ Bore Sizes available 13mm, 19mm, 25mm
+ Position indication available on request
+ Full outboard/ingress sealing
+ Single isolate, block & bleed or double block & bleed versions
+ Superior, long life lip seal technology
+ Triple stem and body sealing for extra safety and integrity
+ API 6A PR2 Performance verification and PSL level 3
+ Water depths to 10,000 feet (3048 Meters)
+ Smooth torque operation |
| SUB SEA GATE VALVES |
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Manual/Diver Operated |
High
performance design suitable for the most services where long
service life and high performance is critical. Metal seated,
Diver operable with various interfaces to suit customer
requirements.
+ Pressure Ranges: ANSI and API to 15,000psi
+ Various body materials & specifications (see data sheet)
+ Bore Sizes available 15mm, 19mm, 25mm
+ Position indication available on request
+ Full outboard/ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ Single isolate, block & bleed or double block & bleed versions
+ Unique Metal to Metal sealing technology used in all critical
areas
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth torque operation
+ Bi-Directional |
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ROV interface |
Robust high performance design suitable for wellhead and
manifold applications where long service life and high
performance is critical. Metal seated, ROV operable with various
interfaces to suit customer requirements.
+ Pressure Ranges: ANSI and API to 15,000psi
+ Various body materials & specifications (see data sheet)
+ Bore Sizes available 15mm, 19mm, 25mm
+ Position indication available on request
+ Full outboard/ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ Single isolate, block & bleed or double block & bleed versions
+ Unique Metal to Metal sealing technology used in all critical
areas
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth torque operation
+ Bi-Directional |
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Remote Actuator (compact) rotary and linear actutors |
Robust high performance design suitable for wellhead and
manifold applications where long service life and high
performance is critical. Metal seated, Hydraulically operated
via compact worm gear with various interfaces to suit customer
requirements.
+ Pressure Ranges: ANSI and API to 15,000psi
+ Various body materials & specifications (see data sheet)
+ Bore Sizes available 15mm, 19mm, 25mm
+ Position indication available on request
+ Manual override facility available on request
+ Full outboard/ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ Single isolate, block & bleed or double block & bleed versions
+ Unique Metal to Metal sealing technology used in all critical
areas
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth torque operation
+ Bi-Directional |
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SUB SEA CHECK VALVES |
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Check Valves Piston Type up to 1" |
High
performance, high cycle, long service life, designed for high
flow and low pressure drop. Having both metal to metal and soft
seat means it is suitable for almost all gases or liquids.
Altogether a very compact unit suitable for many arduous and
long life duties. Various cracking pressures to suit most
applications. Performance verification tested.
+ Pressure Ranges: up to 15,000psi
+ Bore Sizes available: 10mm, 15mm, 19mm, 25mm
+ Superior, long life Dual seal / seat technology
+ Superior one piece body negates the need for ingress sealing
+ Various Trim and Spring materials & specifications (see data
sheet)
+ Various body materials & specifications (see data sheet)
+ Various cracking pressure available
+ Supplied as stand alone or integral to other Sub-Tek products |
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Metal Seated check valve piston type up to 1" |
Metal seated high performance, high cycle, designed for high
flow and low pressure drop. Having Metal to Metal seat
technology lends its self for use with almost all gases or
liquids in applications where temperatures and pressures
continuosly fluctuate. Altogether a very compact unit suitable
for many arduous and long life duties. Performance verification
tested.
+ Superior, long life Metal To Metal Seating
+ Pressure Ranges: up to 15,000psi
+ Bore Sizes available: 10mm, 15mm, 19mm, 25mm
+ Superior one piece body negates the need for ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ Various Trim and Spring materials & specifications (see data
sheet)
+ Various body materials & specifications (see data sheet)
+ Various cracking pressure available
+ Supplied as stand alone or integral to other Sub-Tek products |
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Bolted Construction Piston Check Valve duel seated up to 2" |
High
performance, high cycle, designed for high flow and low pressure
drop. Having both Metal to Metal and soft seats means it is
suitable for most gases and liquids. Providing a very compact
unit suitable for many arduous and long life duties. Performance
verification tested.
+ Soft primary seat & metal to metal secondary seat for bubble
tight closure and long service life
+ Pressure Ranges: ANSI and API up to 15,000psi
+ Bore Sizes available: 10mm, 15mm, 19mm, 25mm, 50mm
+ Various end connection options available
+ Water depths to 10,000 feet (3048 Meters)
+ Superior bolted construction with full outboard/ingress
sealing
+ Various Trim and Spring materials & specifications (see data
sheet)
+ Various body materials & specifications (see data sheet)
+ Various cracking pressure available
+ Supplied as stand alone or integral to other Sub-Tek products |
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Metal seated Bolted Construction Piston Check Valve duel seated
up to 2" |
Metal seated high performance, high cycle, designed for high
flow and low pressure drop. Having Metal to Metal seat
technology lends itself for use with almost all gases or liquids
in applications where temperatures and pressures continuously
fluctuate. Providing a very compact unit suitable for many
arduous and long life duties. Performance verification tested.
+ Superior, long life Metal To Metal Seating
+ Pressure Ranges: ANSI and API up to 15,000psi
+ Bore Sizes available: 10mm, 15mm, 19mm, 25mm, 50mm
+ Various end connection options available
+ Water depths to 10,000 feet (3048 Meters)
+ Superior bolted construction with full outboard/ingress
sealing
+ Various Trim and Spring materials & specifications (see data
sheet)
+ Various body materials & specifications (see data sheet)
+ Various cracking pressure available
+ Supplied as stand alone or integral to other Sub-Tek products |
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SUB SEA MANIFOLD VALVES |

Double Block and Bleed, ball, ball, ball design |
Soft
seated, Medium pressure. High cycle tested, medium depth and
service life design. Other combinations available on request
e.g. Ball, Needle, Gate and Gate , Needle, Globe
+ Over torque protection device
+ Diver and R.O.V. Operable
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 5mm, 10mm, 15mm, 19mm & 25mm
+ Position indication for ROV operation on request
+ Block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 6,000psi
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Soft/metal seated ball and metal seated needle, high pressure.
High cycle tested, medium depth and service life design.
+ Over torque protection device
+ Diver and R.O.V. Operable
+ Actuation available on request (see data sheet)
+ Triple stem and end connector sealing for extra safety and
integrity
+ Full outboard / ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ API 6A PR2 Performance verification and PSL level 3
+ Smooth, low torque operation
+ Bore Sizes available: 5mm, 10mm, 13mm, 19mm & 25mm
+ Position indication for ROV operation on request
+ Block & bleed or double block & bleed versions
+ Pressure Ranges: ANSI and API to 15,000psi |




DBB, needle, needle, needle design
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High
performance, high cycle, long service life, metal seated with
metal to metal body to bonnet seal. Low torque, diver/ROV
operable via color coded 'T' or 'X' bar handle, ROV interface
and actuation. Triple stem and body sealing for extra safety
against internal or external leakage. Performance verification
tested.
+ Pressure Ranges: ANSI and API to 15,000psi
+ Bore Sizes available: 10mm, 13mm
+ Over torque protection device
+ Superior, long life lip seal technology
+ Triple stem and body sealing for extra safety and integrity
+ Full outboard / ingress sealing
+ Water depths to 10,000 feet (3048 Meters)
+ Smooth, low torque operation
+ API 6A PR2 Performance verification and PSL level 3
+ Single isolate, block & bleed or double block & bleed versions
+ Position indication available on request |
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