VZ-ESD Electro‑Hydraulic Emergency Shut‑Down Systems

 VZ‑ESD electro‑hydraulic systems provide dependable emergency shut‑down performance for wellhead and production applications. Designed to open when power is supplied and close automatically when power is removed, they deliver a simple, robust fail‑safe mechanism for critical safety environments. 

• Fail‑safe spring‑return closure
• ¼‑turn or linear actuation options
• Torque outputs up to 420,000 in‑lbs
• Multiple power configurations: 24VDC, 120/240VAC Single Phase, or 230/460 Three-Phase
• Backup hand-pump for manual opening
• Adjustable closing speed
• Visual indicator beacon & SPDT limit switches
• Motor run timer with alarm LED/contacts
• Controls manifold engineered to reduce leak points
• Class I Div 1 & Div 2 options available

• Opening speeds: 10–55 seconds
• Closing speeds: 1–50 seconds
• Hydraulic reservoir: 1.5 gallons
• Standard fluid: Dexron III ATF (0–150°F)

•  Wellhead safety systems
• Remote or solar‑powered sites
• High‑risk environments (H₂S, residential proximity)
• Production facilities requiring reliable fail‑safe closure