Product category:
Valves and manifolds
News Release from: Bray Controls USA | Subject: Series 35/36
Edited by the Processingtalk Editorial
Team on 06 February 2004
New line of heavy duty, large butterfly
valves
Bray Controls has announced a new line of heavy duty, large diameter, resilient seated butterfly valves: Series 35/36 are full-flanged versions rated at 75 and 150 psi, sizes 60", 66" and 72"
Bray Controls has announced a new line of heavy duty, large diameter, resilient seated butterfly valves The new Series 35/36 are full-flanged versions rated at 75 and 150 psi, respectively and are available in sizes of 60", 66", and 72"
This article was originally published on Processingtalk on 9 Apr 2004 at 8.00am (UK)
Related stories
Reduce fugitive emissions and maintenance downtime
The Media Containment Unit (MCU), an accessory to Flow-Tek ball valves, offers a secondary seal in addition to the exceptional primary stem sealing capacity of the company's high quality ball valves
Actuators for rotary valves
New, rugged, low cost electric actuators for rotary valves, with the the Series 73/R5, a new rectangular electric actuator that delivers highly reliable service at a price believed unmatched
These new valves have many of the design features and benefits of smaller Bray valves, such as high Cv ratings, minimum parts exposed to the line media, greater reliability and a proven record of long service life.
All Bray valve bodies are drilled to be compatible with ANSI 125/150 or other International flange standards.
The Series 35/36 may be bolted to allow downstream flange removal or cross-bolted for maximum resistance to line stresses.
Further reading
Rack and pin pneumatic actuator is bidirectional
Bray Controls has announced the Series 92/93 rack and pinion double acting and spring return pneumatic actuator, with two independently adjustable travel stop screws
High performance butterfly valves
Bray Controls is proud to announce that they have designed a blow-out proof stem for Bray high performance Series 40 butterfly valves
The high strength disc casting is spherically machined, hand polished to provide 360degree concentric seating, bi-directional bubble-tight shut off, minimum torque and longer seat life.
The symmetrical disc profile enhances valve performance.
The Bray advanced V-Type stem packing is self-adjusting with bi-directional sealing which prevents external substances from entering the upper stem bore.
This packing is externally adjustable and functions well for vacuum applications as well as a third pressure seal in emergency situations.
A bronze adjustable packing gland allows for field adjustment of stem packing without removing manual operators or power actuators.
To minimize bearing friction and operating torque, heavy wall bronze sleeve bearings are utilized.
A bronze vertical thrust bearing eliminates disc displacement due to the weight of the stem and disc.
Bray's one piece through stem design is completely isolated from the flowing media and achieves high torsional strength.
The stem ends are standardized for direct mounting and interchangeability with Bray actuators.
Tangential taper pins of 17-4 PH stainless steel are driven and mechanically locked for maximum torsional capacity and resistance to vibration.
O-rings are installed with the driven-in taper pins to insure bubble-tight shutoff under pressure or vacuum conditions.
Due to a modular concept of design, all Bray manual gear operators and pneumatic or electric actuators mount directly to Bray valves.
Another key element is the Bray unique tongue and groove seat design which fully isolates the body from line media.
And a superior primary seal is achieved by pre-loaded contact of spherically machined hand polished disc hubs with unique moulded seat flat surfaces.
This sealing method isolates the flowing media from the stem and body material at all angles of valve disc opening and seating.
Bray International, headquartered in Houston, is a leader and innovator in process control automation, with worldwide manufacturing and distribution facilities.
Products include automated and manual 1" through 72" butterfly valves, pneumatic and electric actuators, valve status monitors, electro-pneumatic and pneumatic positioners, solenoid valves and control accessories.
• Bray Controls USA: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
