Pratt Industrial

Pratt High Performance Butterfly Valve with Pratt Electric Actuator

The Pratt HP Series High Performance Double Offset Butterfly Valves are engineered for demanding industrial applications, offering reliable performance and durability. These valves are available in sizes ranging from 2 inches to 72 inches, with pressure classes of 150, 300, and 600, accommodating various system requirements. ​ 

Specifications: 

• Sizes: 2" - 72"
• Body: WCB A-216 Carbon Steel, CF8M A351 Stainless Steel
• Disc: CF8M A351 Stainless Steel
• Stem: 17-4 PH Stainless Steel
• Seat: PTFE, RTFE, 316 SS, Inconel, Fire Safe, MTFE
• Bearing Material: Graphite Reinforced Teflon, 316 SS
• Packing Material: PTFE Cup & Cone, Graphite
• Actuation Options: Worm Gear, Lever, Pneumatic, Electric
• Pressure Ratings: CL.150 - 2-72"; CL. 300 - 2"-48"; CL. 600 - 2"-24"

Note: Many alloys & seat materials are available to accommodate virtually any service condition.

Features:

• Double offset disc & shaft
• Blowout proof shaft design
• Bi-Directional (Soft Seat only)
• Dead End & Double Dead End Service (Lug Type only)
• Fire Safe Certified (Metal seat and Fire safe seat, API 607)
• Spherical Sealing Surface

Optional Features:

• Live loaded packing
• O2 Cleaning
• Steam jacket
• Bonnet extension
• Oil free cleaning
• Anti-static
• Customized option designs are available upon request

Pratt Electric Actuators

​The Pratt EQ Series Electric Actuators are designed for industrial applications requiring reliable and efficient valve automation. These actuators are known for their robust construction, high output torque, and adaptability to various control systems.​ 

Key Features:

· Compact and Robust Construction: The EQ Series actuators are lightweight yet capable of delivering high output torque, with models offering up to 79,500 in/lbs. ​ 

· Wide Torque Range: They accommodate a broad spectrum of torque requirements, from a minimum of 800 in/lbs to a maximum of 79,500 in/lbs, ensuring suitability for diverse applications. ​ 

· Durable Housing: Featuring hard anodized aluminum housing with external powder coating, these actuators are built to withstand harsh industrial environments. ​ 

· Environmental Protection: Equipped with radial seals and O-rings, the enclosures provide waterproof protection rated at IP67 (NEMA 4 & 6), with an optional upgrade to watertight IP68 for enhanced protection. ​ 

· Standardized Mounting: The dual mounting base conforms to ISO5211 and KV standards, facilitating easy integration with various valve types. ​ 

· Self-Locking Mechanism: A double worm gearing system ensures self-locking, maintaining valve position without the need for additional brakes. ​ 

· Manual Override: An auto-declutching manual override handwheel with a padlockable auto/manual switch allows for manual operation during emergencies or maintenance. ​ 

· Mechanical Torque Sensing: A reliable mechanical torque-sensing system provides safe operation under overload conditions, protecting both the actuator and the valve. ​ 

· Clear Position Indication: Large windows and indicators offer clear position visibility from a distance, aiding in monitoring and operation. ​ 

· Local Position Control Options: Various local control options are available to facilitate easy commissioning and field operations, enhancing flexibility and user convenience. ​ 

Technical Specifications:

· Torque Output: Models range from 100 Nm (885 in/lbs) to 9,000 Nm (79,656 in/lbs), catering to a wide array of operational needs. ​ 

· Duty Cycle: Depending on the model, duty cycles range from 25% to 50%, indicating the actuator's operational efficiency. ​ 

· Operating Time: Operating times vary by model and frequency, with specifics detailed in the technical documentation. ​ 

· Power Supply: Compatible with various power supplies, including single-phase 110/220VAC and three-phase 380/440VAC, to suit different electrical environments. ​ 

· Enclosure Protection: Standard models offer IP67 protection, with an option for IP68, ensuring resilience against water ingress and harsh conditions. ​ 

· Motor Insulation: Equipped with Class F motor insulation, these actuators are designed for reliable performance under demanding conditions. ​ 

Optional Features:

· Explosion-Proof Certification: For hazardous environments, explosion-proof models are available, certified to Ex d II B T4 standards. ​ 

· Auxiliary Limit and Torque Switches: Additional limit and torque switches can be integrated to enhance operational safety and feedback capabilities. ​ 

· Extended Travel Angles: Models can be configured for extended travel angles up to 270°, accommodating specific application requirements. ​ 

· Position Feedback: Options for potentiometer kits and current transmitters (4-20mA output) are available for precise position feedback and integration into control systems.