ASCO AH2E112S4 Hydramotor Actuator – 120V Fast-Opening, Electrohydraulic

Product Overview

The ASCO AH2E112S4 Hydramotor Actuator is a high-performance, precision-engineered fast-opening electrohydraulic actuator, designed exclusively for ASCO V710 Series gas valves. Perfect for commercial and industrial burners, boilers, and furnaces, the AH2E112S4 combines rapid, reliable valve actuation with a fast spring-return safety closure of 1 second or less.

• Fast Opening: Maximum 14 seconds for precise, responsive startup

• Spring-Return Closure: 1 second or less, ensuring critical safety

• Engineered for ASCO V710 Valves Only: Seamless compatibility across all V710 configurations

• Proven Proof-of-Closure: Guarantees dependable operation for burner and boiler systems

Rugged, durable, and built for long-lasting reliability, the AH2E Hydramotor actuator is the preferred choice for service professionals and OEMs demanding high performance in harsh environments.

✅ Key Features

• ✔️ Electrohydraulic, push-type linear actuator

• ✔️ Fast-opening design (14 seconds maximum)

• ✔️ Ultra-fast spring-return closure (<1 second)

• ✔️ Directly mounts to V710 gas valves with 3 set screws

• ✔️ Aluminum body for lightweight durability

• ✔️ Operates in extreme temperatures: –40°F to 150°F (–40°C to 66°C)

• ✔️ Optional watertight Type 4 enclosure available

• ✔️ Compatible with all ASCO V710 valves

• ✔️ Replaces AH2B112S4 and AH2D112S4

🔧 Electrical Ratings

Notes:

• Opening time doubles between –30°F and –40°F ambient

• Opening time increases ~20% when operating at 50 Hz

📊 Technical Specifications

✅ Certifications & Compliance

The ASCO AH2E Hydramotor paired with V710 valves meets rigorous safety and performance standards:

• UL Listed: Standard 429 “Electrically Operated Valves,” Guide YIOZ, File MP932 Safety Valves

• FM Approved: Class 7400 “Liquid and Gas Safety Shutoff Valves”

• CSA Certified:

  1. Automatic Gas Valves – ANSI Z21.21 / CSA 6.5, C/I, File 109157 & 113070

  2. Automatic Gas Safety Shutoff Valves – CGA 3.9, File 113070

  3. Standard C22.2 No. 139, File 109157 & 113070

This ensures safe, reliable operation in commercial and industrial burner systems.

⚠️ Common Symptoms of a Failing Actuator

• Slow or inconsistent opening

• Failure to fully extend or retract

• Valve remains stuck open or closed

• No movement despite applied voltage

• Excessive vibration or unusual noise

❓ Frequently Asked Questions (FAQ)

Q: What valves is the AH2E112S4 compatible with?

A: It mounts directly to ASCO V710 Series valves only, with full compatibility across all V710 configurations.

Q: How fast is the actuator’s safety closure?

A: Less than 1 second using spring-return design.

Q: What are the opening times?

A: Fast-opening: 14 seconds maximum; Slow-opening: 26 seconds maximum.

Q: Does it support extreme temperatures?

A: Yes, it operates reliably from –40°F to 150°F.

Q: Which models does this replace?

A: AH2B112S4 and AH2D112S4.

🛒 Shopping Tips

• Confirm the gas valve is an ASCO V710 Series before purchase.

• Select appropriate spring range and fast vs. slow operation for your system.

• Verify system voltage (120V AC).

• For outdoor or humid installations, consider the Type 4 watertight enclosure.

• Replace aging Hydramotors proactively to maintain safe, reliable gas control.