There are largely two types of butterfly valve: soft seat and metal seat. (See Fig 1.1, 1.2 and 5.4) <FIG. 1-1> Metal Seat <FIG. 1-2> Soft Seat Fig 1.1 Metal Seat Fig 1.2 Soft Seat 2. Storage ① Do not throw, drop, trip or drag butterfly valves when transporting them.
Butterfly Valves Installation, Operation & Maintenance Guide BV/BV-D Butterfly Valves PREFACE. The following information should be followed in addition to the requirements set forth by an on-site, process engineer or professional pipe fitter.
Installation and operation manual Butterfly valves Article no: 74523 Revision: 1 6 (10) 4 Storage and handling instruction 4.1 Storage Store the valves indoors in a clean and dry place. Corrosion that occurs during storage will significantly reduce the life span of the valve.
That valve drives me crazy!??What is ... A manual override device, using a lever, to stroke a valve or to limit its travel. ... Applies to butterfly valves. liquid ...
installation/operating manual Henry Pratt ComPany ... 3"–20" Bonded Seat Butterfly Valves Installation / Operation Instructions 4 Testing When rubber seated valves are
Operation and Maintenance Manual ... butterfly valve’s disc actually extends beyond the face of the valve body at given angles of opening (say, 30° or more)
ASAHI AV VALVES Installation Operation and Maintenance Manual Butterfly Valves (40-400mm) 0 Serial No. H-V036E-4 ... Operate the valve within the pr essure Vs ...
American Valve Butterfly Valves Are Used For Liquid Flow And Plumbing Applications Offering Minimal Piping Space. American Valve Butterfly Valves are made of corrosion resistant PVC construction for long lasting durability and dependability. Compact and lightweight design for energy saving and cost-efficient operation. Excellent flow characteristics.
Manual Valve Actuators. ... manual actuation option for Pratt butterfly valves. The MDT ... of operation. In complete conformity to AWWA Standard C504,
Installation of the Actuator onto a Valve Manual Operation ... (ball, butterfly, plug, and control valves) or dampers. ... Industrial Valve Manual ...