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Shut-off and Control valves

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Straight-through gate valve

Two-position gate valve; solid slide gate; straight-through construction; forged body; self-adjusting seats; nonlifting stem, bolted structure of bidirectional cap.

API 6D/ISO 14313

Straight-through gate valve Straight-through gate valve

Application drilling and production equipment.

Standard features:

  • Stem grease coupler
  • Double body seal and triple stem seal
  • Blowout preventing stem

Additional features:

  • lubricating system for seat sealing at emergencies
  • steel-on-steel seat construction
  • flameproof enclosure
  • seating cone structure with external screw and guide crosshead

Balanced stem structure is applied for the working pressure ranging from 10.000 psi to 20.000 psi.


API 6A/ISO 10423

Straight-through gate valve

Application: pipeline transportation systems


Standard features:

  • bidirectional design.
  • grease coupler behind stem safety seating cone specification

Technical features

Design characteristics Bidirectional design; Coupled shut-off and discharge valve is available on request
Size range DN 2"-60"
Pressure class ANSI 150-2500
API 2000-20000
API6D / ISO 14313
API6A / ISO 10423
Design temperature -46°C... +121°C
-196°C... +260°C on request
Design standards API 6D / ISO 14313
API 6A / ISO 104233
ASME VIII Div.1–Div.2-Div.3
ASME B 16.34 – BS 5500
End connection Butt welding
Flanged
Coupling
ASMEB 16.25
ASME B16.5; MSS SP44; Norsok L-005;
Mounting Ground, Vertical/ Horizontal; Subsurface, Underwater
Control Wheel; Reducing gear; Drives (Hydraulic, Pneumatic, Electric)


Ball valves with supporting journal

Ball valves Ball valves Ball valves
Side access; split housing consisting of 2 or 3 parts with bolted connection Top access; bolted cap structure, simplifying operation and maintenance without dismounting from the pipeline Fully welded body

Standard features:

  • Seat construction with primary soft seal and secondary metal seal
  • Self-sealing seats
  • Emergency seal grease lubricating of the stem
  • Emergency seal grease lubricating of the seating during (6" and more)
  • Double body seal and triple stem seal
  • Static eliminator
  • Blowout preventing stem

Additional features:

  • Two-way flow cutoff construction
  • Metal-to-metal design.
  • Coating of flow washed surfaces
  • Stem extension for subsurface mounting
  • Special tools for vertical mounting

Specification

Design characteristics Bidirectional design; Coupled shut-off and discharge valve
Size range DN 2"-56"
Pressure class ANSI 150-2500
API 2000-20000
API6D / ISO 14313
API6A / ISO 10423
Design temperature -46°C... +121°C
-196°C... +260°C on request
Design standards API 6D / ISO 14313
API 6A / ISO 104233
ASME VIII Div.1–Div.2-Div.3
ASME B 16.34 – BS 5500
End connection Butt welding
Flanged
Coupling
ASMEB 16.25
ASME B16.5; MSS SP44; Norsok L-005;
Mounting Ground, Vertical/ Horizontal; Subsurface, Underwater
Control Wheel; Reducing gear; Drives (Hydraulic, Pneumatic, Electric)


Plug valves

Plug valves are designed for long-term operation. Valve plug and body have tapered lapped face for seat precise sealing. Plunger and stem are separated allowing plug to shift under pressure. Plug valves are bidirectional two-position service valves with reduced diameter of orifice.

Effective lubrication system allows excellent grease distribution preventing corrosion, optimizing sealing and ensuring smooth operation.

Plug valves

Standard Properties:

Applying jointing paste to the stem at emergency

Applying jointing paste to the plunger in at emergency

Flameproof enclosure according to API 6FA – API 607 – BS 6755 Part.2

  • Triple rod packing
  • Static discharge device
  • Blowout preventer

Additional Properties:
Stem extension for subsurface mounting


Special valves

Underwater Ball Valves

Underwater Ball Valves Underwater Ball Valves Underwater Ball Valves
Side access globe valve for operation at low temperatures
Fully weld globe valve Top access globe valve
Underwater Ball Valves Underwater Ball Valves
Side access globe valve with extended stem for subsurface mounting Coupled shutoff-release globe valve with 2 balls

Special Designs

Underwater Ball Valves Underwater Ball Valves Underwater Ball Valves Underwater Ball Valves
DN 24" ANSI 1500 – with pneumatic drive – full duplex DN 36" ANSI 900 – with electric drive - metal-to-metal DN 36" ANSI 600 – with hydraulic drive DN 40" ANSI 600 - with gearbox drive

Underwater Ball Valves Underwater Ball Valves Underwater Ball Valves
DN 6" ANSI 900 – with gearbox drive DN 16" ANSI 900 – with hydraulic drive DN 18" ANSI 900 – with hydraulic drive
DN 18" ANSI 900 – with gearbox drive

Underwater Gate Valves

Underwater Gate Valves Underwater Gate Valves Underwater Gate Valves Underwater Gate Valves
Emergency shutdown gate valve Gate valve driven by remotely controlled manipulator Coupled shutoff-drain gate valve with 2 sliding gates Gate valve with double-vane gate and extended stem for subsurface mounting

Special Designs

Underwater Gate Valves Underwater Gate Valves Underwater Gate Valves
Gate valves DN 12" ANSI 2500 with pneumatic two-piston fail-safe closing drive Gate valve NB 48" ANSI 600 driven by the electric drive Gate valves NB 20" ANSI 600 with gearbox drive

Underwater Gate Valves Underwater Gate Valves Underwater Gate Valves
Well-control equipment for offshore platform Gate valve DN 1"API 10000 driven by pneumatic drive Manually controlled gate valve DN 10" API 12500

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