High Pressure Ball Valves – Marwin 3000 Series 3 Piece Ball Valves

We aim to respond within 1 hour

Up to 4000 psi (275 bar) pressure rating
Full port (1/4"–3") and reduced port (1/2"–4") options
Temperature range: -29°C to +288°C
3‑piece bolted body design for easy maintenance
API 607 fire-safe design available

The Marwin 3000 Series is a high performance range of 3‑piece ball valves engineered for demanding process applications requiring high pressure capability, reliability and ease of maintenance.

Manufactured from bar stock carbon steel, stainless steel and specialist alloys, the 3000 Series provides excellent mechanical strength and chemical compatibility across a wide range of industries.

The three-piece construction allows the valve body to be removed inline, enabling easy servicing or replacement of seats, seals and internal components without removing the valve from the pipeline.

Available in both full port and reduced port configurations, the range offers flexibility for applications requiring either maximum flow capacity or more compact, cost-effective solutions.

The valves feature deep pocketed seats, triple stem sealing and double body seals, ensuring secure shut-off and long service life even under high pressure or cyclic conditions.

Applications

Common process applications and industrial uses include:

High pressure fluid control systems
Oil & gas processing and distribution
Chemical and petrochemical plants
Steam and thermal fluid systems
OEM skid systems and process equipment
General industrial isolation duties

Other features

Triple stem sealing (packing, O‑ring, thrust washer) for enhanced sealing integrity
Blowout-proof stem design for safety in high pressure systems
Deep pocketed resilient seats to prevent extrusion and improve sealing
Wide range of seat materials including PTFE, RPTFE, PEEK, UHMWPE and others
ISO 5211 mounting pad for easy automation integration
Extensive end connection options including NPT, weld, flanged and specialist types
100% pressure tested valves
Live-loaded adjustable stem packing for long-term sealing performance