Design criteria mss sp68 design mss sp25 markings api609 seat pressure temperature ratingsblowout proof stem asmeansi b16. A fully open ball valve behaves as an extension to the pipe and thus does not disturb the velocity profile in the way that, for instance, butterfly and globe valves do. Butterfly valves shall be manufactured in accordance with the latest revision of awwa c504, class 150b and conform to nsf standard 61. Concentric rubber lined butterfly valve 2 piece split body ptfe lined butterfly valve double eccentric high performance butterfly valve triple eccentric high performance butterfly valve dual plate check valve engineering data 04 12 14 17 20 22 valve configurations scale drawing to actual size application this catalog remains the property of ms.
Module 5 miscellaneous mechanical components provides information on significant mechanical devices that have widespread application in nuclear facilities but do not fit into the categories of components covered by the other modules. It is important, in this case, to remember that the. Properly selected and maintained control valves increase efficiency, safety, profitability, and ecology. Existing butterfly valves can easily be retrofitted with the intellitop 2. Api 609 centric butterfly valves soft seated are preferred to gate and ball valves for lowpressure and noncritical applications as they are cheaper, lighter and easier to install. A valuable reference for further study of control valves is the isa handbook of control valves, second edition, 1976.
The manufacturer shall have produced awwa butterfly valves for a. Proper alignment of any butterfly valve between flanges is critical to good performance of the valve. Compared to globe valves selected for the same design flow rate. Handbook of valves and actuators brian nesbitt download. The results are discussed to establish relationships which are useful for future butterfly valve design and compare. Solenoid powered to close auto reset butterfly valves part of the f series of easily installed, compact, air intake. For the nonrising stem design, the valve disk is threaded internally and mates with the stem threads. There are many valve designs and types that satisfy one or more of the. Two are placed in a similar position to the double offset butterfly valve, while the third offset is the geometry of the seating surface, creating a type of cone shape of the disc and seat. Someone in each industry needs to be able to design, purchase or maintain the right valve for the job in hand, and that can amount to a lot of valves worldwide. Resilient seated butterfly valves have been designed to be suitable for all types of flanges asme, din, jis and other international flange standards, whether flatfaced, raised face, slipon, weldneck, etc. Machined metal seat, free floating, unidirectional, pressure assisted seal abzolute 400 series metal seated valves are rated full ansi pressure.
Pressure relief valve engineering handbook contents chapter 1 introduction to crosby engineering handbook chapter 2 fundamentals of pressure relief valve design chapter 3 terminology chapter 4 codes and standards summary chapter 5 valve sizing and selection u. Butterfly valves tsmart 7 significant product features robust valve disk low switching torque onepiece flange design selection of 2 metallic product wetted materials product wetted parts in aisi 304 1. For information on butterfly valves consult the engineering data book section vb2. Whats different about zero, double and triple offset. The valve stem extends completely through the valve body. Instrument engineers handbook for durco control valves preface this manual on control valve sizing brings together the mathematical tools required to select durco valves properly for control valve applications. The butterfly valve boasts a long life span and has few faults. Solenoid powered to close auto reset butterfly valves.
Amri products include pneumatic, hydraulic and electric valve actuators as well as control systems. Process design of valves and control valves project standards and specifications page 10 of 34 rev. Butterfly valve manual series 9210 honeywell process. Powder valves and airlocks have been manufactured by gea for over 40 years for numerous applications within the dairy, food, pharmaceutical and chemical industries. A control valve performs a special task, controlling the flow of fluids so a process variable such as fluid pressure, level or temperature can be controlled. Types of butterfly valves api 609 a butterfly valve is used to shut off or modulate the flow of a fluid isolation and regulation. Again the orientation of the butterfly determines the flowrate. The control valve handbook is both a textbook and a reference on the strongest link in the control loop. Rotary ball, segment, and butterfly valves designed for isolation and control of slurry services allwelded ball valves for buried services. Under the amri brand, ksb sells its butterfly valves. We reserve the right to modify or improve the designs or specifications of such. Comparison of manually and electrically operated butterfly valves has been made. Reference should always be made to the victaulic installation handbook or installation instructions of the product you are installing.
Tsmart butterfly valves gea engineering for a better world. Butterfly valves are available in sizes up to 20 in. Butterfly valves butterfly valves are used to stop, start, and regulate fluid flow. However, older design check and butterfly valves with external appendages such as. Butterfly valves engineered by bray including resilient seated butterfly valves, double offset high performance butterfly valves, triple offset premier isolation butterfly valves and high performance valves for the sugar industry. Retainer side recommended flow direction recommended flow direction recommended flow direction metal seat design. Pdf failure mode and effect analysis fmea of manually. Butterfly valves are designed with face to face dimensions. Fkce electrically actuated butterfly valve page 34 fece electrically actuated butterfly valve page 35 s.
Units chapter 6 valve sizing and selection metric units. However, instead of a ball mounted in the valve body a circular disc called a butterfly because the two half circles around the vertical shaft appear like wings. Flowseal high performance butterfly valves are a standard in many industries including heating, ventilating and. From this experience gea has developed an extensive range of both standard and customized options to meet the varied application requirements. The disc is a flat or slightly curved disc attached to the valve stem. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. Valves an open valve in a straight pipeline is taken care of in the same way the same manner as an unrestrained line joint connections bulletin pd02. Types of butterfly valves api 609 projectmaterials.
All types and versions available in a glance as well as their specific accessories and main technical details such nominal working pressure and kv. Valves handbook is a new tool that resumes all fip valve range. Valves doehdbk1018293 valve functions and basic parts figure 3 nonrising stems there is no upward stem movement from outside the valve for a nonrising stem design. They are used in building services, industry, water engineering and power generation applications. Econ butterfly valves are being supplied by several eriks operating companies worldwide. Control valves are an increasingly vital component of modern manufacturing around the world. With the triple offset butterfly valve there are three offsets. In this manual these will be referred to as eriks, the individual terms of delivery of.
The disc is rotated 90 degrees about an axis at a right angle to fluid flow. Fisher rotary valve selection guide emerson electric. Thrust restraint design of dead ends, valves, reducers and. Butterfly valves have fewer parts and are easy to maintain. Additionally, our design and manufacturing facility is certified to the pressure equipment directive ped, and flowseal valves can be ordered as ce marked see page 23. This valve is not designed to handle impacts of any kind. Valve actuator the actuator operates the stem and disk assembly. A butterfly valve is a valve which can be used for isolating or regulating flow. Weirtype diaphragm valves which are designed for a short stroke.
The saving of energy costs may be several times the initial cost of the valve. Product information butterfly valve discssolid butterfly disc, 316 l stainless steel material 1. Piping codes, valve standards and ball valve selection. Check and butterfly valves are used in many industries, including refineries, petrochemical plants, chemical plants, power generation facilities, and others. Operation of the manual engine shutdown button is required to trip the valve to the closed engine stop position. Valves in vacuum service must be installed with vacuum on upstream side of valve. In order to meet your just in time delivery requirements, we maintain inventory on 3 through 48 butterfly valves with a variety of mdt actuation styles to. Under the sisto brand, ksb sells its diaphragm valves. A control valve may be defined as a valve with a powered actuator that responds to an external signal. Rotary valve selection guide d102550x012 product bulletin 40. Rubber seated butterfly valve, sizes 3 through 20 inches.
Valves common types butterfly valves butterfly valves use a similar principle to ball valves. Due to the valve design, incorporating a small facetoface dimension and lower weight than most valve types, the butterfly valve is an economical choice for larger line sizes i. The design of a slim and streamlined disc shape results in low pressure losses and reduced energy costs for the end user. The butterfly valve complies with asme facetoface dimensions and pressure ratings. Mss sp67 butterfly valves mss sp68 high pressure butterfly valves with offset design note. Diaphragm valves diaphragm valves are flexbody valves in which the body flexibility is provided by a diaphragm.
The installation designer is responsible for the valve selection. The butterfly valve is designed for easy maintenance. A closed valve that is pressurized on one side only is treated as a dead end from a thrust restraint calculation standpoint. To use the system to its full life span, you should install it correctly according to the manual and maintain it according to the prescribed procedures while using it. This lightweight and compact valve design together with the. Pratt butterfly valve, coupled with the mdt actuator, offers single source responsibility for both actuator and valve. It consists of a body that includes a disc to control flow speed, a seat ring, a bonnet, and an actuator. This data sheet is designed as a guide and should not be regarded as wholly accurate in every.
Following valve closure the manual reset lever on the valve is used to reset to the latched open position. The control valve handbook has been a primary reference since its first printing in 1965. Instrument engineers handbook for durco quarterturn. In addition to controlling the flow, a control valve may be used to shut off flow.