Diaphragm valves types, construction, applications and. Simply select the parameters you need and it takes care of the rest. Ever since the invention of the diaphragm valve in 1928, saunders remains the leader of the pack in flow solutions. Saunders a type diaphragm valves valve benefits for corrosive and abrasive applications 6 crane process flow te c h n o l o g i e s our saunders a type diaphragm valves have been developed to handle a wider range of fluids and gases than any other valve type. Maintenance padlocking to prevent expensive interference. Replacement sanitary diaphragms precision fit and designed for oempart replacement for itt, saunders, gemu and new. Installation operating and maintenance instruction for. Leak tight on pressure and vacuum services, saunders diaphragm valves.
All compounds are fda and usp class vi compliant includes material certification. Manual diaphragm valve mod manually operated diaphragm valve is ideal for cyanoacrylates and other low to medium viscosity fluids, for use in an operator applied situation. Saunders invented the diaphragm valve concept and then pioneered the development of the first true high purity diaphragm valve with the introduction of the afp forged 316l1. A comprehensive platform of innovative forged and machined block solutions, unique inhouse polymer competence and class leading automation and sensing technologies enable our customers to handle critical process applications with. Diaphragm saunders valves diaphragm valves commonly known as a saunders, after a popular brand name work on the principle of a rubber diaphragm or bladder opening and closing. Saunders is a leading global supplier of aseptic diaphragm valve flow solutions to the life science industries. Saunders diaphragm valves exporter,saunders diaphragm valves. History of innovation saunders has led the way in the development of the diaphragm valve to meet ever increasing demands for hygienic performance and regulatory compliance. Saunders industrial diaphragm valves for industrial applications. However, the design features present in the original weir type diaphragm valve remain the reasons the aseptic diaphragm valve is recognized as the valve of choice for aseptic applications.
In succeeding years have developed a range through innovation in both design and new materials technology. Stainless steel sanitary diaphragm valve page 4 of 7 drain angles for diaphragm valves table 2 valve size drain angle. Saunders valves are ideal for restrictive or flow control duties ie valve half closed to reduce flowrate. From the inhouse polymer research and development to the precision position sensing sensors, boundaries have been continually broken since p k saunders original innovation. The saunders industrial diaphragm valve, first developed more than seventy years ago, has evolved to handle more fluids, gases, solids, and powder than any other type of valve. Continue to apply pressure to the center of the diaphragm and turn through 90. Our ability to supply exstock is just one of the many benefits we offer our customers. Further information technical data sheets, operating and maintenance instructions can be found on the saunders website or accessed from the following link. Can be accessed in different finishings, sizes and shapes. These include a special epdm diaphragm for continuous steam operation at up to 150 c. Install, operate and maintain valves more efficiently with. The saunders diaphragm valve type a have been developed to handle a wider range of fluids and gases than any other valve type. Self drainage will only occur if the process line has a slope of a minimum of 3. As the innovator and leader in diaphragm valves, we continually develop our diaphragm technology and remain the only manufacturer to have complete ownership of the research and development, design and production involved.
First ptfe diaphragms first supplier of glass and fluorocarbon linings first nonbonded ptfe diaphragm first compact pneumatic actuators first 3 layer diaphragm for corrosivegas. The following diagram shows the basic structure of diaphragm valve that consists of three. As a result, saunders diaphragm valves have gained an excellent reputation. Saunders a type diaphragm valve atype reduced flow details saunders kb type diaphragm valve. Diaphragm valves offer many combinations of body and elastomeric diaphragm materials. Construction of a diaphragm valve diaphragm valves fig. The standard 2way valve body is the basic building block of diaphragm valve technology. This nextgeneration diaphragm valve has three product enhancements that differentiate it from.
To achieve optimum diaphragm performance, only the highestgrade specially engineered materials are used in our diaphragm production. Manual diaphragm valves plastic diaphragm valve asahiamerica. History of innovation saunders has led the way in the development of the diaphragm valve to meet the ever increasing demands of industrial applications. Refer to the chemical resistance guide on page 223. Molded closed 214s diaphragms open until diaphragm is flush with bonnet flange. However, we recommend installation to be at least 6 times the pipe diameter from bend or pump 10 times the pipe diameter if the valve is used for control. The saunders valve can be installed in any position without affecting its operation. Assembly diaphragm installation bayonet type diaphragms.
Install, operate and maintain valves more efficiently with the pureflo envizion valve. Pk saunders invented the original diaphragm valve in 1928 in the then known west rand gold fields of johannesburg. Every valve we makemakes a difference somewhere in the world. With its straight through design with non turbulent flow, our saunders type kb valve is ideally suited for demanding abrasive applications with a full range of proven inhouse developed rubber linings. A comprehensive platform of innovative forged and machined block solutions, unique inhouse polymer competence and class leading automation and sensing technologies enable our customers to handle critical process applications with maximum security and efficiency. These are used in residential, industrial and commercial areas. It meets industry demands for innovative features that provide longer diaphragm lifetime, increase efficiency and reduce the industrys carbon footprint. Dn8 to dn50 kb straight through valve diaphragm valve with a full bore opening to ensure maximum flow when handling viscous or abrasive fluids.
Alfa laval unique diaphragm valves are complemented by a wellproven and extensive range of diaphragms, covering most applications. Diaphragm valve dimensions pressuretemperature ratings for resistoflex diaphragm valves maximum linerdiaphragm capabilities may be lower depending on the agressiveness of the fluid being handled. Glass lined a type body page 15 pfa lined valve with. Apr 01, 2016 animation illustrates the flow pattern and operating principals of a weir type diaphragm valve for industrial process control applications. Molded closed diaphragms 214s425 should be opened until diaphragm backing is flush with actuator base. Saunders diaphragm valve range valves for corrosive and abrasive applications a type screwed weir type valve in sg iron, gunmetal and stainless steel. Jun 08, 2016 saunders diaphragm valves features01 1 hd. Since then, we have developed our range through innovative designs and by using the latest materials technology. Kdv is the largest manufacturer, stockist and distributor of diaphragm valves in the southern hemisphere.
Saunders has a complete line of manual and linear actuated diaphragm valves, both weir and straight through type, aseptic diaphragm valves and blocks. Alfa laval diaphragm valves are ideal for use in sterile and ultrahygienic processes and supplied with a comprehensive documentation package, alfa laval qdoc, providing full transparency of sourcing, production and supply chains, and traceability of all changes in material, manufacturing procedures or. Saunders invented the original diaphragm valve in 1928, saunders has led the way in providing solutions to industries where flawless operation and resistance to corrosion, abrasion and contamination are imperative. Repair replacement sanitary high purity diaphragms for. Installation must be performed by qualified technicians only. Choosing the right slurry valve is easy with the engineered valve slurry valve selection tool. Holding the lever down will apply the material, while a simple lift of the finger from the lever shown left will cause the diaphragm to close. The forging process results in a homogeneous surface that is free of defects such as porosity, inclusions, or shrinkage cavities.
The valve design is abrasion resistant and nonclogging. Grade 286, diaphragm with fire resistant fabric reinforcement. Simplicity in design coupled with over 75 years of cutting edge innovation has resulted in the saunders diaphragm valves ability to handle a wider range of fluids than any other valve type. Viton and gf version elastomer available upon request. Saundersidv animation diaphragm replacement procedure hd duration. A consist of a rigid body formed with a weir placed in the flow path, a flexible diaphragm which forms the upper pressure boundary of the valve, a compressor which is used to force the diaphragm against the weir, and the bonnet and handwheel which secure the diaphragm to the body and. Documented performance every valve in the range is backed by the peace of mind of alfa lavals comprehensive documentation. A wide choice is available for materials, methods of operation and body end. Alfa laval diaphragm valves are ideal for use in sterile and ultrahygienic processes and supplied with a comprehensive documentation package, alfa laval qdoc, providing full transparency of sourcing, production and supply chains, and traceability of all changes in material, manufacturing procedures or spare parts. Diaphragm valve dimensions and weights all dimensions in inches n12ominal valve size 12 21. Animation illustrates the flow pattern and operating principals of a weir type diaphragm valve for industrial process control applications.
Saunders site today, cwmbran, uk saunders site circa 1939, cwmbran, uk since p. Crane chempharma, saunders 2way forged bodies are manufactured from wrought 316l1. Saunders diaphragm valves exporter,wholesale supplier. Saunders industrial diaphragm valves are available in a wide range of linings and are used to handle strong acids such as sulfuric acid, hydrochloric acid, acetic acid and nitric acid. As a result, saunders diaphragm valves have gained an excellent reputation worldwide for versatility and reliability in aseptic and in industrial applications with corrosive and abrasive media. Saunders diaphragm valves are light in weight and compact in size which enables them to be easily installed. Top line understands that the most important factor of diaphragm valve reliability is the diaphragm itself. A wide choice of unlined and lined bodies are available for materials, methods of operation and body end connections to satisfy the needs of most corrosive ans abrasive applications.
The entrapment free design and selfdraining characteristics of the diaphragm valve body make it the ideal choice for both aseptic processes and systems. In the most demanding applications, saunders valves offer the highest resistance and durability. There are two main types of saunders valve body types. Pk saunders invented and patented the diaphragm valve concept long before the emergence of the life science industry. Topflo diaphragms for diaphragm valves top line process. When the diaphragm, which is connected to the stem of the valve by a compressor, is pulled away from the bottom of the valve body or weir, the path of the fluid has smooth, streamlined flow. Itt grinnell diaphragm valve catalog authorized parts. As a result, saunders diaphragm valves have gained an excellent reputation for versatility and reliability, establishing a presence in every process industry sector. Saunders industrial diaphragm valves flosource inc.1337 1500 1026 833 899 1476 1079 326 148 1127 138 1331 1263 1317 683 443 1288 1307 1105 501 63 865 140 650 922 1304 1404 261 451 810 1045 922 814 1511 997 155 35 116 1075 640 520 964 979 1412 5 767 1388