Trading division · 01

Valves

Engineered Valves

Valve solutions for demanding flow, pressure, and isolation requirements

ENGIC supplies engineered valves for oil and gas, offshore, energy, utilities, process plants, water, infrastructure, marine, and industrial applications.

Our valve portfolio supports isolation, flow control, pressure containment, pressure relief, shutdown, throttling, corrosive service, cryogenic service, high-temperature service, and specialist operating conditions.

Products are selected according to service medium, operating pressure, temperature, material compatibility, trim requirements, end connection, actuation requirement, inspection level, documentation requirement, and applicable project standard.

ENGIC supports clients with valve selection, technical clarification, specification review, supplier coordination, inspection support, documentation control, and delivery follow-up.

Valve types may include:

→Ball valves
→Gate valves
→Globe valves
→Check valves
→Butterfly valves
→Plug valves
→Subsea valves
→Control valves
→Safety valves
→Pressure relief valves
→Vacuum breaker valves
→Specialty valves

Application-specific configurations may include:

→Cryogenic valves
→Floating ball valves
→Trunnion-mounted ball valves
→Metal-seated valves
→Soft-seated valves
→Plastic-lined valves
→High-performance butterfly valves
→Triple-offset butterfly valves
→Lubricated plug valves
→Non-lubricated plug valves
→API 6A valve packages
→API 6D valve packages
→Bellow seal valves
→Diaphragm valves
→Knife gate valves
→Needle valves
→Pinch valves
→Top-entry ball valves
→V-port ball valves
→Resilient-seated valves
→HF acid service valves
→Lift check valves
→Piston check valves
→Swing check valves
→Wafer check valves
→Y-pattern check valves

Common pressure classes may include:

→Class 150
→Class 300
→Class 400
→Class 600
→Class 900
→Class 1500
→Class 2500
→Class 4500 where applicable

Common material options may include:

→Carbon steel
→Forged steel
→Cast steel
→Low-temperature carbon steel
→Stainless steel
→Duplex stainless steel
→Super duplex stainless steel
→Alloy steel
→Chrome alloys
→Nickel alloys
→Exotic alloys
→PVC, CPVC, PP, PVDF, and lined materials where applicable

Common end connections may include:

→RF — Raised Face
→RTJ — Ring Type Joint
→FF — Flat Face
→BW — Butt Weld
→SW — Socket Weld
→THD / NPT — Threaded
→PE — Plain End

Standards may include:

→API
→ASME / ANSI
→ASTM
→BS
→MSS
→EN
→DIN
→ISO
→JIS
→GOST
→NACE / ISO 15156 where applicable
→Client and project-specific standards

Sizes, ratings and standards

The technical envelope ENGIC has supplied against:

→Sizes 1/2 in through 60 in; larger on request
→ASME Classes 150, 300, 400, 600, 900, 1500, 2500 and 4500
→Design and test: API 600, 602, 603, 604, 607, 609; API 6A, 6D, 598, 6FA
→ASME/ANSI B16.34; BS 5351, 5352, 636, 6755; MSS SP-25; JIS and GOST practice
→End connections: RF, FF, RTJ, BW, SW, threaded and plain end
→Body materials: carbon steel, stainless steel, cast and ductile iron, alloy, duplex, chrome and exotics
→Lined and non-metallic bodies: PVC, CPVC, PP, PVDF

FIG 01

Flow path by valve type

GATE

Gate

Wedge lifts clear of the bore, so a fully open gate valve has no obstruction and almost no pressure drop. Isolation duty only — throttling wire-draws the seat.

API 600 process, API 6D pipeline

GLOBE

Globe

Flow turns up through a stationary seat and back down. That deliberate resistance is what makes the valve regulate, and why it is specified where flow must be set rather than merely stopped.

BS 1873 / API 623

BALL

Ball

Quarter turn from shut to full bore. Seats wipe as the ball rotates, which is why it holds bubble-tight shutoff far longer than a multi-turn valve on dirty service.

API 6D / API 608

CHECK

Swing check

No operator at all — line pressure holds the disc open and reverse flow slams it shut. Fitted to protect pumps and compressors from backflow on trip.

API 6D / API 594

BFLY

Butterfly

Disc stays in the flow, so there is always some loss, but face-to-face is short and weight is a fraction of a gate valve. The default above about 8 in on water and low-pressure service.

API 609 / AWWA C504

Sections showing how the medium moves through each body. The flow path determines whether a valve is suitable for isolation or throttling.Geometry per API 600, API 6D, API 609

Verification

Qualify the supply route.

Review ENGIC’s current ISO certificates and published standards, or request project-specific documentation and representation confirmation during a qualified enquiry.

Quality & HSE →Standards →Documents →

Valves

Sizes, ratings and standards

Flow path by valve type

Qualify the supply route.

Actuators

Pipe Fittings

Flanges