HOWELL H51F Pneumatic Flanged Ball Valve HSR-80 2IN

( Brand: Howell ), ( Manufacturer Part Number: H51F ), ( Part Type: Pneumatic Valve Flanged ), ( Size: 2 In ), ( Actuation Type: Pneumatic ), ( Material: Stainless ), ( Mounting Type: Flanged ), ( Reference Sku: 1748584 ), ( Product Condition: Used Excellent )

Review HOWELL Pneumatic Stainless Flanged Ball Valve 2in

The **Howell H51F HSR-80 Pneumatic Flanged Ball Valve (2-inch)** is a robust, high-performance industrial valve engineered for demanding applications requiring precise control, reliability, and durability in fluid handling systems. Part of Howell s **HSR-80 series**, this valve is designed to meet stringent industry standards, delivering exceptional performance in both on/off and throttling operations within pipelines transporting liquids, gases, or slurries. Constructed with a **full-port ball design**, it ensures minimal pressure drop and maximum flow capacity, making it ideal for applications where efficiency and throughput are critical. The valve features a **pneumatic actuator**, which provides rapid, consistent, and repeatable operation, reducing manual intervention and enhancing automation compatibility. This actuator is engineered for smooth, silent actuation, minimizing wear and tear while ensuring precise positioning whether fully open, fully closed, or in intermediate positions for throttling control.

The **2-inch flanged connection** (compatible with ANSI Class 150, 300, or 600 ratings, depending on configuration) ensures a secure, leak-proof seal, accommodating a wide range of piping systems in industrial, oil and gas, chemical processing, water treatment, and power generation facilities. The **flanged design** allows for easy installation and maintenance, with standard bolt patterns facilitating quick disassembly for inspection or replacement of internal components. The valve body is crafted from **cast ductile iron or stainless steel (SS304/SS316)**, depending on the model, offering superior corrosion resistance and longevity in harsh environments, including those exposed to aggressive chemicals, high temperatures, or abrasive particles. The **Teflon or PTFE-coated ball and seat** further enhances resistance to chemical degradation, ensuring long-term sealing integrity and reducing the risk of contamination.

For enhanced safety and operational flexibility, the **H51F model incorporates a fail-safe design**, allowing it to default to either fully open or fully closed positions in the event of air supply failure, depending on the actuator configuration. This feature is particularly valuable in critical applications where system integrity cannot be compromised. The valve also includes a **spring-loaded diaphragm actuator**, which provides consistent torque output across the valve s operating range, compensating for variations in air pressure and ensuring reliable performance even under fluctuating conditions. Additional features such as **position indicators, limit switches, and manual override handles** (on select models) enable easy monitoring and manual control, making maintenance and troubleshooting straightforward.

Whether deployed in **oil and gas refining, water treatment plants, chemical processing facilities, or HVAC systems**, the Howell H51F HSR-80 2-inch pneumatic flanged ball valve delivers uncompromising performance, combining **durability, precision, and ease of integration** into automated control systems. Its **modular design** allows for customization with various trim materials, seal options, and actuator configurations, ensuring it meets the specific requirements of diverse industrial applications. With a focus on **minimizing downtime and maximizing operational efficiency**, this valve stands as a dependable solution for engineers and operators seeking a high-quality, long-lasting component in their fluid control infrastructure.

**Pros and Cons of buying a Howell H51F HSR-80 2-Inch Pneumatic Flanged Ball Valve**

1. **High-Quality Construction** The HSR-80 series is known for its robust, corrosion-resistant materials, including stainless steel and reinforced elastomers, making it suitable for harsh industrial environments.

2. **Reliable Pneumatic Operation** The pneumatic actuator ensures smooth, consistent operation with minimal manual intervention, reducing labor costs and improving efficiency.

3. **Flanged Design for Durability** The flanged connection provides a secure, leak-resistant seal, ideal for high-pressure applications where gaskets or threaded connections may fail over time.

4. **Wide Temperature & Pressure Range** The valve is designed to handle a broad range of temperatures (typically -20 F to 400 F) and pressures (up to 200 PSI, depending on configuration), making it versatile for various industrial processes.

5. **Low Maintenance Requirements** The ball valve s simple design minimizes wear and tear, reducing downtime for servicing compared to complex control valves.

6. **Quick Opening/Closing** Pneumatic actuation allows for rapid valve operation, which is beneficial in emergency shutdowns or process control scenarios.

7. **Compatibility with Automation Systems** The valve can be integrated into PLC or SCADA systems for remote control, enhancing automation in manufacturing or processing plants.

8. **Corrosion Resistance** The stainless steel body and compatible trim materials (such as PTFE or Viton seals) resist chemical corrosion, extending the valve s lifespan in corrosive environments.

1. **Higher Upfront Cost** Compared to manual or electric ball valves, pneumatic models have a higher initial purchase price, which may be a barrier for smaller operations or budget-conscious buyers.

2. **Dependence on Air Supply** The valve requires a consistent pneumatic air source (typically 80 100 PSI), which adds complexity to installation and maintenance if the facility lacks a compressed air system.

3. **Potential for Air Leaks** If the pneumatic actuator or hoses develop leaks, it can lead to inefficiencies or require additional maintenance.

4. **Limited Portability** Due to its flanged design and pneumatic components, the valve is not easily portable and must be installed in a fixed location.

5. **Training Required for Operation** Personnel may need training to properly operate, maintain, or troubleshoot the pneumatic system, adding to operational costs.

6. **Noise and Vibration** Pneumatic actuators can generate noise and vibration during operation, which may require additional soundproofing or damping in sensitive environments.

7. **Potential for Freeze-Up in Cold Climates** If the pneumatic system is not properly insulated or heated, moisture in the air lines could freeze, causing operational issues in cold environments.

8. **Supplier and Part Availability** Howell (now part of Emerson) is a reputable brand, but sourcing replacement parts or finding authorized service providers may be challenging in some regions.

The Howell H51F HSR-80 2-inch pneumatic flanged ball valve is a high-performance, durable solution for industrial applications requiring reliable, automated control. Its strengths lie in its robustness, corrosion resistance, and seamless integration with pneumatic systems, making it ideal for demanding environments such as chemical processing, oil and gas, or water treatment plants. However, the higher cost, dependency on a pneumatic air supply, and maintenance requirements may not justify its purchase for smaller-scale or low-budget applications. If automation, durability, and long-term reliability are priorities, this valve is an excellent choice. For applications where cost or simplicity is more critical, a manual or electric ball valve might be a more practical alternative.

- You require a high-performance, automated valve for a critical industrial process.

- Your facility already has a reliable pneumatic air system.

- The application involves corrosive fluids, high pressures, or temperatures that demand a durable, low-maintenance solution.

- Integration with automation or remote control is a priority.

- Budget constraints make the higher upfront cost prohibitive.

- Your facility lacks a pneumatic air supply or requires portability.

- The application does not necessitate rapid or automated operation.

Details:

Pneumatic Cylinders. Pneumatic Exhaust Valves. Mounting Type:Flanged. Pneumatic Filter-Regulators.

Actuation Type:Pneumatic. Pneumatic Directional Valves. Model Number:H51F.

part #: h51f prices

• $435.80-$1059.50

specifications valvesplumbing:

• brand: Howell
• mpn: H51f
• part type: Pneumatic Valve Flanged
• size: 2 In
• actuation type: Pneumatic
• material: Stainless
• mounting type: Flanged
• reference sku: 1748584
• product condition: Used Excellent

shipping valvesplumbing:

• type: Fixed
• service: Standard, Expedited, Overnight
• class: Standard, Expedited, One-day
• cost: $0.00
• transit: 6-6 Days

returns valvesplumbing:

• method: Money back
• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

general valvesplumbing:

• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Ball Valves
• condition: Used

seller valvesplumbing:

• # reviews: 124771
• city: Delta, Ohio
• rating: 100.0%

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• other
• credit card: Diners-club

offer valvesplumbing:

• best offers: True
• sold: 0
• options: Ship-to-home
• started: March 5, 2026
• availability: In Stock
• quantity: 2