Showing posts with label Hayward. Show all posts
Showing posts with label Hayward. Show all posts

Friday, February 23, 2018

Thermoplastic Industrial Ball Valves

thermoplastic floating ball valves for industrial use
Thermoplastic ball valves, TBH Series.
Image courtesy Hayward Flow Control
Ball valves are a mainstay of fluid control
throughout many industries. Like most valve types, the ball valve is named for its closure mechanism. A spherical shaped element is placed in the fluid flow path, with the ability to rotate its position around an axis. The axis is a shaft or other device that connects to an actuator on the exterior of the valve. The actuator can be a simple handle or an element of a valve automation system. The “ball” in the ball valve has an opening through its center, usually round to mimic the shape of the connected pipe. As the ball is rotated, the opening aligns with the inlet and outlet of the valve body, allowing fluid to pass. A counter-rotation that aligns the port (opening) with the sides of the valve body, away from the flow path, stops the fluid flow. A seat between the exterior surface of the ball and the containing valve body prevents fluid from flowing around the ball.

The basic ball valve design centers around either a floating ball or trunnion mounted ball. A floating ball valve uses the body and the seats to hold the ball in place, with the connecting shaft serving primarily as the rotating mechanism. This design can provide bidirectional closure, since the fluid flow seats the ball against one of the sealing surfaces. A trunnion mounted ball valve has positioning support pins that mate with machined portions of the valve body to hold the ball in place and serve as the axis of rotation. Trunnion valves are available in sizes larger than those of the floating ball design.

Various common and exotic metals are routinely used for body and internal construction. Thermoplastic ball valves are an alternative that provides high levels of corrosion resistance to the media, as well as the surrounding environment.

Typical applications for thermoplastic ball valves:

  • Municipal waste and water treatment
  • Clean water technology
  • Chemical transfer and processing
  • Aquatic and animal life support systems
  • Mining and mineral processing
  • Metal plating
  • Marine
  • Pulp and paper
  • Landfills and environmental infrastructure
Some detailed information about thermoplastic ball valves from Hayward Flow Control is provided below. There are more variants to fulfill a wide band of applications. Share your fluid control challenges with a process control specialist and leverage your own knowledge and experience with their product application expertise to develop an effective solution.



Wednesday, July 27, 2016

Hayward Announces New Electric Valve Actuator Line

electric valve actuators with manual override
New HRS Series Electric Valve Actuators
Courtesy Hayward Flow Control
Hayward Flow Control issued a press release in early June announcing the introduction of its HRS Series of quarter turn electric valve actuators. The actuators complement the company's companion lines of fluid process products, including thermoplastic valves, strainers, filters, controls, bulkhead fittings and tank accessories, and corrosion resistant pumps.

The new HRS line provides practical features and benefits to users.
  • Product torque range from 300 in-lb to 177,000 in-lb
  • Aluminum housing with powder coat
  • Double square drive socket, ISO5211 compliant mounting
  • On/Off or Proportional Control  with 2-10 vdc or 4-20 ma inputs and outputs
  • NEMA 4/4X/IP67 enclosure rating
  • Range of available AC and DC voltages
  • Integrated local control station
  • Visual position indicators
  • CSA Certified, UL439
  • Two Year Warranty
There are numerous variants that can be configured using base models and available options. For more detail, contact a product specialist. Share your fluid process control challenges with them, combining your process knowledge with their product application expertise to produce the most effective solutions.