Top Entry Trunnion Ball Valve

Top Entry Ball Valves

By Eastern United

Eastern United’s Top Entry Ball Valves are designed for critical service environments where performance, accessibility, and safety are paramount. The vertically assembled ball, stem, and actuator system, combined with a detachable bonnet, allows in-line servicing without removing the valve from the pipeline—making maintenance faster and operations more efficient.

🔧 Key Features

  • In-line repair capability
  • Full or reduced bore options
  • Bi-directional Class IV shut-off
  • API 6D & ASME B16.34 compliant
  • Ideal for high-pressure, high-cycle applications

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Industrial Applications

Geothermal Reinjection Units
Used to regulate the reinjection of geothermal fluids post energy extraction. Top entry valves maintain accurate pressure control and endure corrosive and thermal stresses.

PIG Traps
Top entry full bore valves offer an ideal flow path for inserting or retrieving pipeline inspection gauges (PIGs) under high-pressure conditions.

Surge-Relief Skids
Due to their quick-actuation and sealing capabilities, these valves effectively manage pressure surges, opening and shutting automatically when preset levels are reached.


Product Range & Design

Eastern United’s top entry trunnion-mounted ball valves range from ½” to 60” (DN15 to DN1500), available in full bore or reduced bore. Engineered for low operating torque, these valves ensure smooth operation even under extreme working conditions.

🔄 Operator Options: Pneumatic, Hydraulic, Gas Actuators, or Manual Gear Operated.


Top Entry Ball Valve Specifications

SpecificationDetails
Valve Size½″–60″, DN15–DN1500
Pressure Class150LB–2500LB, PN16–PN420, JIS10–20K
MaterialsA105, LF2, F316, F304, F11, F51, F55
Design StandardsAPI 6D, ASME B16.34, BS5351, ISO 17292
Face-to-Face StandardsASME B16.10, BS 558, BS12982, ISO 5752
Flange StandardsASME B16.5, ASME B16.47, ASME B16.25, ASME B16.11, BS12627
Pressure Test StandardsAPI 598, API 6D, BS12569
Fire Safety StandardsAPI 6FA, API 607
CertificationsISO 9001, ISO 14001, ISO 18001
Fugitive EmissionsISO 15848-1, API 622
NACE ComplianceNACE MR 0175
Shutoff ClassAPI 598 (Zero Leakage), Class IV–VI (as per requirement)
Bore TypesFull Bore, Reduced Bore
Connection TypesSW, NPT, BW, RF, RTJ