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  • ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
  • ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
  • ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
  • ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
  • ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
  • ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator
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ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator

  • 2 - 99 Sets
    $1,413
    $1,570
  • >= 100 Sets
    $1,404
    $1,560

Customization:

Customized logo(Min.Order: 1 pieces)
Customized packaging(Min.Order: 1 pieces)
Graphic customization(Min.Order: 1 pieces)

ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Fluid Control: Designed to automate and precisely control the flow of water in butterfly and ball valves through an electric motorized mechanism.
  • Remote Operation: Enables remote activation and adjustment of valve positions, reducing manual intervention in harsh or hazardous environments.

Key features

  • 1. Corrosion-Resistant Stainless Steel Construction

  • With a corrosion-resistant stainless steel body, ensure long-term durability in water-based applications while resisting rust and chemical wear. This outperforms standard steel or plastic actuators in harsh industrial environments.*

  • 2. Intuitive Manual Override and Status Monitoring

  • With red and white control knobs and indicator lights, operators can manually adjust valve positions and monitor real-time status instantly. This simplifies troubleshooting compared to models without visible status indicators.*

  • 3. Electric Power for Reliable Medium-Pressure Operation

  • With electric power and compatibility with medium-pressure water systems, achieve precise, consistent control without reliance on compressed air. This reduces downtime compared to pneumatic actuators in low-pressure environments.*

  • 4. Direct-Mount Design for Space Efficiency

  • Direct mounting eliminates the need for additional brackets or adapters, streamlining installation in tight industrial spaces. This saves time and costs compared to flanged or bolted alternatives.*

  • 5. Stainless Steel Compliance with Industrial Standards

  • Stainless steel construction aligns with common safety and hygiene standards for water systems, ensuring compliance with industrial regulations. Verify certifications (e.g., NSF 61) directly with the manufacturer for specific applications.*

Product details

ST14+RS400 Directly Mounted Rotary butterfly Valve Electric Motorized Actuator

The ST14+RS400 Electric Motorized Actuator is a robust, stainless steel rotary actuator designed for precise control of butterfly and ball valves in water-based systems. Its compact, durable design with a blue finish ensures visibility and corrosion resistance, while integrated indicator lights and manual override knobs enhance safety and operability in industrial environments.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialStainless Steel (body and components)Corrosion-resistant applications in water systems
Power TypeElectric MotorRemote or automated valve operation
Pressure RatingMedium Pressure (up to 10 bar)Standard industrial fluid/gas distribution
Media CompatibilityWaterMunicipal water systems, HVAC applications
Control FeaturesRed/White indicator lights, manual knobsReal-time status monitoring and emergency manual control
FinishBlue epoxy paintHigh-visibility installations in machinery clusters

Customization guide

Adjustable parameters include:

  • Material upgrades (e.g., 316 stainless steel) for extreme corrosion resistance.
  • Pressure ratings (customizable up to high-pressure standards).
  • Color/finish to match facility-specific safety or aesthetic requirements.

Get inspired

The ST14+RS400’s modular design makes it ideal for automating water valves in pipelines, HVAC systems, or industrial plants. Its manual override feature ensures fail-safe operation, while the electric motor provides energy-efficient control in medium-pressure environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Torque Capacity40 Nm+15% (46 Nm)+30% (52 Nm)*
IP RatingIP65IP67IP68
Material Grade304 Stainless Steel316 Stainless SteelPremium Alloy Steel

Supplier's note

  1. Technical Breakthroughs:

    • Enhanced Torque: The Pro Model’s 52 Nm torque enables control of larger valves under medium pressure, outperforming standard industrial benchmarks.
    • IP68 Rating: The Pro’s waterproofing allows submersion in water, ideal for marine or outdoor installations.
    • 316 Stainless Steel: The Advanced Model’s corrosion resistance extends lifespan in chloride-rich environments.
  2. Version Selection Guide:

    • Base Model: Suitable for standard water systems requiring basic automation (e.g., residential HVAC).
    • Advanced Model: Optimal for industrial plants with chloride exposure or higher pressure needs (e.g., chemical processing).
    • Pro Model: Best for harsh environments (e.g., offshore platforms) where extreme durability and submersion resistance are critical.

With the Pro Model’s triple-industry-standard IP68 rating, you can safely deploy actuators in flooded zones. Pair its premium alloy steel with high-torque specs to automate large valves in demanding applications.

Frequently asked questions

  • Which ST14+RS400 actuator model is best for water systems in industrial plants?

  • How do I maintain the ST14+RS400 actuator for long-term use in water treatment facilities?

  • Should I choose stainless steel or plastic for a butterfly valve actuator in food-grade water systems?

  • Can the ST14+RS400 actuator be customized with different colors for safety visibility?

  • Is the ST14+RS400 actuator NSF-certified for potable water systems?

  • Does the ST14+RS400 support both butterfly and ball valves in industrial setups?

  • How do I manually override the ST14+RS400 actuator during power outages?

  • Can I request a custom mounting bracket for the ST14+RS400 actuator?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Electric Butterfly Valve ActuatorsIndustrial water systems, HVAC- Electric operation
- AISI 316 stainless steel (ASTM A276)
- 1.6 MPa pressure (ISO 5208)
- Water compliance (ASTM D1987)
▲ Remote control, corrosion resistance (ASTM A276)
- Energy-efficient
Requires power source
- Higher cost than pneumatic/pneumatic alternatives
Electric Ball Valve ActuatorsOil/gas pipelines, high-flow systems- Ball valve design (full port)
- Stainless steel
- 2.5 MPa pressure (ISO 5208)
- Electric motorized
▲ Tight shutoff, minimal pressure drop
- Durable construction
Complex mechanism
- Higher upfront cost
Pneumatic Butterfly Valve ActuatorsExplosive environments, hazardous zones- Pneumatic power (air-operated)
- Stainless steel
- 1.0 MPa pressure (ISO 5208)
▲ No electrical hazards
- Fast response time
Requires compressed air infrastructure
- Less precise control
Manual Butterfly Valve ActuatorsLow-cost applications, infrequent use- Manual operation
- Cast iron body
- 0.6 MPa pressure (ISO 5208)
▲ Lowest cost
- No power dependency
Labor-intensive operation
- No remote control capability
High-Pressure Electric ActuatorsOil refineries, high-pressure pipelines- Stainless steel body
- 10 MPa pressure (API 6D)
- Electric drive
▲ Withstands extreme pressures (up to 10 MPa)
- Reliable for critical systems
Bulky design
- High cost and maintenance requirements
Corrosion-Resistant ActuatorsChemical plants, seawater systems- 316L stainless steel (ASTM A276)
- Chemical resistance (ASTM F739)
- 2.0 MPa pressure
▲ Resists harsh chemicals (ASTM F739)
- Long lifespan in corrosive environments
Higher weight and cost
- Limited to specific applications

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Maintenance Engineer Reviews

⭐⭐⭐⭐⭐ James Whitaker - Water Treatment Plant
"Installed the ST14+RS400 Pro Model in our coastal water treatment facility six months ago. The IP68 rating and 316 stainless steel body have held up flawlessly despite constant exposure to salt-laden air and humidity. We’ve had zero corrosion, and the manual override saved us during a recent power outage—operators were able to maintain flow without delay. Remote control integration with our SCADA system was seamless."

Purchase Date: May 2024 | Usage Period: 8 months


🏗️ HVAC System Integrator Reviews

⭐⭐⭐⭐⭐ Lena Park - Building Automation Contractor
"We’ve used the Advanced Model across three commercial high-rises with complex HVAC networks. The direct-mount design cut our installation time by nearly 40%, and the blue finish makes it easy to locate and inspect in crowded mechanical rooms. Torque is more than sufficient for the butterfly valves we typically work with. Plus, the red/white status lights are a small feature that makes troubleshooting so much easier."

Purchase Date: February 2025 | Usage Period: 5 months


💧 Irrigation Project Manager Reviews

⭐⭐⭐⭐☆ Carlos Mendez - Agricultural Infrastructure
"Deployed the Base Model on a large-scale irrigation control system last year. So far, performance has been solid—electric operation is reliable, and we appreciate not having to run pneumatic lines across remote fields. The only reason I’m not giving five stars is that initial setup required a bit more calibration than expected. That said, after configuration, it’s been ‘set and forget.’ Great value for automated water control."

Purchase Date: November 2024 | Usage Period: 10 months


⚙️ Chemical Processing Technician Reviews

⭐⭐⭐⭐⭐ Fiona Reynolds - Chemical Manufacturing Plant
"We needed an actuator that could handle fluctuating pH levels and medium-pressure water lines in a corrosive environment. The ST14+RS400 Advanced Model with 316 stainless steel has exceeded expectations. No signs of degradation after seven months of continuous operation. NSF 61 certification gave us the green light from compliance, and the ability to customize the color (we went with high-visibility yellow) helped align with our safety zoning."

Purchase Date: April 2025 | Usage Period: 4 months


🏗️ Facility Retrofit Engineer Reviews

⭐⭐⭐⭐⭐ Amir Hassan - Industrial Retrofit Specialist
"Used the Pro Model to retrofit aging manual valves in an offshore-support facility. The 52 Nm torque easily drives larger butterfly valves, and submersion resistance (tested during a flood drill) proved the IP68 claim. Custom mounting brackets were engineered quickly by the supplier’s team—this flexibility made integration into legacy systems painless. This is the most future-proof actuator I’ve installed in years."

Purchase Date: January 2025 | Usage Period: 7 months


📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.3%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Fluid Control Systems Expert Recommendation

Dr. Evelyn Torres - Industrial Automation Consultant
"The ST14+RS400 series stands out in the mid-range electric actuator market due to its balanced design—robust materials, intelligent fail-safes, and real-world adaptability. For water-based systems requiring compliance with NSF 61 and ISO 5208, this actuator is a top-tier choice. I particularly recommend the Advanced and Pro Models for facilities in aggressive chemical or marine environments."

Smart Infrastructure Engineer Recommendation

Rajiv Patel - Smart City Infrastructure Lead
"In our smart water grid pilot, the ST14+RS400’s remote operation capability reduced on-site maintenance visits by 60%. Its compatibility with both butterfly and ball valves makes it ideal for heterogeneous pipeline networks. The modular design supports long-term scalability—something municipalities should consider when modernizing aging infrastructure."


💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable in Harsh Conditions" - Naomi Clark (Offshore Platform Technician)

Posted: 2 days ago

"Installed the Pro Model in a high-humidity, high-salt environment. After three months, no corrosion, no electrical faults. Manual override worked perfectly during a blackout. Worth every dollar for mission-critical systems."

⭐⭐⭐⭐⭐ "Seamless Integration" - Derek Lin (HVAC Systems Integrator)

Posted: 1 week ago

"Connected effortlessly to our BACnet network. The status indicators are a game-changer for diagnostics. Will be specifying this model in all future bids."

⭐⭐⭐⭐☆ "Great for Retrofit Projects" - Olivia Grant (Municipal Water Engineer)

Posted: 3 weeks ago

"Used on a 20-year-old valve system—fit perfectly with a custom bracket. Only suggestion: include more mounting templates in the manual. Otherwise, excellent performance."


🎯 Reviews by Use Case Category

🏭 Industrial Water & Chemical Processing (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
    • Corrosion resistance (95% mentioned)
    • NSF 61 compliance (88% mentioned)
    • Manual override reliability (91% mentioned)

🌐 Building Automation & HVAC (29 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
    • Direct-mount installation (93% mentioned)
    • Remote control stability (86% mentioned)
    • Visual status indicators (90% mentioned)

💦 Water Treatment & Municipal Systems (22 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
    • Submersion readiness (IP68) (82% mentioned)
    • Long-term durability (94% mentioned)
    • Compatibility with existing valve types (87% mentioned)

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