Pneumatic valve actuator NG series

quarter-turnsingle-actingdouble-acting

Product Description
The Bettis NG-Series pneumatic valve actuator is a modular, field‑serviceable actuator engineered for demanding industrial and nuclear applications. Independently tested for LOCA and compliant with IEEE 382, it supports configurable fail‑safe modes (spring‑return or double‑acting) and enhanced protection against water ingress for submergence and high‑pressure deluge environments.

Key Features

• Independently tested to LOCA and meets IEEE 382; satisfies seismic and aging qualification criteria for nuclear use.
• SIL-capable design suitable for safety‑instrumented environments.
• Patented Tension‑Lok device positively locks the spring module for safe removal and installation.
• PED 97/23/EC compliant for pressure-vessel requirements.
• Meets IP66 and IP67M for submergence and high‑pressure water deluge protection.
• Modular configurations with interchangeable power and spring modules simplify field maintenance and reduce inventory.
• Interchangeable modules enable quick reversal of fail‑safe mode; mechanical and hydraulic manual override options available.
• Corrosion‑resistant coatings on internal and external surfaces for harsh environments.
• Available as a complete valve operating system (VOS) combining actuator, controls and valve.

Characteristics / Technical specifications

• Power source: Pneumatic
• Product type: Pneumatic valve actuator (NG-Series)
• Actuation: Fail‑safe; quarter‑turn; spring‑return; double‑acting
• Control type: On/off
• Certifications: Nuclear / Seismic — LOCA tested and meets IEEE 382
• Ingress protection: IP66, IP67M (submergence and high‑pressure deluge)
• Standards & compliance: PED 97/23/EC
• Design: Modular, field‑serviceable; patented Tension‑Lok spring module retention
• Options: Mechanical overrides; hydraulic manual override; convertible single‑acting to double‑acting in field