Welded Body Side Entry Ball Valves
Compact, high-performance welded body, side-entry, trunnion-mounted ball valve suitable for large-bore, high-flow, high-pressure pipeline applications.
The Welded Body Side Entry Ball Valve is a heavy-duty, trunnion-mounted valve engineered for large-bore, high-pressure pipeline and industrial systems. Designed with a forged body structure and a welded closure, it provides maximum structural integrity, minimized leak paths, and enhanced resistance to pressure and mechanical loads.
Its side-entry design (available in two or three pieces) allows for full or reduced bore options, offering bi-directional sealing with both soft-seated and metal-seated configurations. With features such as multiple redundant sealing arrangements, spring-loaded self-relieving seats, and Double Block and Bleed (DBB) capabilities, the valve delivers exceptional reliability and operational safety.
Additional safety features include anti-static devices, anti blow-out stem, and fire-safe construction in compliance with major global standards. This valve can be customized with various materials, end connections, and actuation types—making it ideal for pipelines, LNG service, gas or water injection systems, pumping stations, shutdown operations (SDV), or motor-operated valves (MOV).
Main Features
- Side Entry Design, two or three pieces
- Forged Body and Closure welded together
- Trunnion Mounted design
- Bi-Directional Sealing
- Full or Reduced Bore
- Spring Loaded Self-relieving
- Double Block and Bleed (DBB)
- Soft Seated
- Multiple redundant sealing configuration
- Static Sealing: Elastomeric, Thermoplastic or Metallic
- Dynamic Sealing: Elastomeric or Thermoplastic
- Anti static Device
- Anti blow‐out stem
- Fire Safe Design (API 607, API 6FA, ISO 10497)
- Emergency Grease injection point on Stem
Options
- Customized size and design pressure according to Project requirements
- Double Isolation and Bleed: provided through Double Piston Effect seats configuration (DIB-1 or DIB-2 as applicable)
- Primary Metal Secondary Soft
- Metal Seated
- Electroless Nickel Plating on Stainless Steel (standard feature on Carbon Steel or LT Carbon Steel Material) on pressure controlling parts
- Emergency Grease Injection points
- Extended Stem / Extended Bonnet
- Available Design Validation: ISO 15848-1, API 6D
- Client specific Type Approval or Design Validation test
- PED
- ATEX
- Design suitable for underground/buried installation
- Overlay Cladding on Sealing Areas or all wetted parts
- Welded Pups / Transition pieces
- Painting according to Customer Specification
Benefit
- Compact and light design
- High resistance to pressure and loads
- Suitable for large bore, high flow applications
- Extended maintenance free life
- Minimization of leak paths
Technical Data
API 6D:
2”- 60”
Class: # 150-2500
QSL 2, QSL3/3G, QSL4/4G
Main Components:
- Carbon steel
- Low temperature carbon steel
- Stainless austenitic steel and super-austenitic steel
- Stainless duplex and super-duplex
- Nickel superalloys (such as Monel, Inconel 625, Hastelloy)
Hard Facing (Metal Seated):
- Tungsten Carbide Coating
- Chrome Carbide Coating
Seat insert (Soft Seated):
- Devlon
- Peek
- RPTFE
- Nylon
- Elastomeric
- Handwheel / Lever / Manual gear
- Electric
- Hydraulic actuator (FAI, FC, FO)
- Pneumatic actuator (FAI, FC, FO)
- Direct Gas
- Gas Over Oil