Bolted bonnet with spiral wound gasket, also threaded and seal welded bonnet or threaed and pressure seal bonnet on optional. Now, it already has become a professional endin industry valves company, manufacture and afterservice with producing highquality,with 100% tight shutoff technology of zero leakage, and excellent design use long life products. The nominal pressure are from 1mpa to 42mpa 150lb2500lb. Standard valves with bellows seal flowserve corporation. Velan products bellows seal api 602 small forged valves. Operation manual hand wheel, chain wheel electric actuator pneumatic actuator, hydraulic actuator actuator located out of the valve globe valves can be equipped. If you do not have adobe reader, you may download it. Globe valves valtra bellow seal globe valve 200 al pn 10160 dn 1550 globe valves valtra bellow seal globe valve 200al pn1040 63160 dn65400 dn65200 component 1. In common valves, the packing seal of the stem ages fast and it is easy to leak,but this design totally eliminates these short comings. Reliable, leaktight performance with a packless design where a seal to atmosphere is especially critical. With the application of bellow seals the gland packing is supplemented by a metallic bellow cartridge. Multiple options for general and highpurity service. Boah maintenancefree bellows type globe valves applications. The bellow seal shown in figure 7 provides a permanently leakproof and maintenancefree stem seal, even at high temperatures.
To use the bellows inside the valve, and the bellows of stainless steel is welded. For more than 60 years, our bellows sealed globe valves have been specified and installed in. The above will be followed by bellow sealed globe, gate valve in cast construction. Maintenancefree stem with bellows seal and safety gland. Manual excess torque, with a help of a tommy lever equivalent to the diameter. The bellows cycle life tests are done while the bellows are under pressure and subjected to both ambient and elevated temperatures.
Gate valves, and api 602 annex c type testing of bellows stem seals. Valve body style globe, angle, 3way characteristics equal%, linear, on off rangeability see table on page 5 seat leakage. Hot oil system, steam system, hot and cold water system etc. Special care has been taken with the design of the class 150 valve body so that the. Therefore, use of bellow seal valve is on the increase. Velan bellows seal valves feature a formed multiply bellows welded to the stem and to the bottom of the bonnet, creating a hermetic seal or impermeable barrier. Options bellows seal hastelloy c276 stem hastelloy c276 c vvalues see table 2 rangeability 50. Operating characteristics and dimensions flanged globe valves socket weld.
Apart from increaseing the efficiency of materials and the safety of production equipment,it not only reduces maintenance the costs and frequent maintenance of products. Why clampseal valves are top performers in their class. A wide variety of bellow seal globe valve options are available to you, such as medium pressure, high pressure, and low pressure. Globe valves valtra bellow seal globe valve 200 al pn 10160. There are also bellows sealed valves, cryogenic valves for temperatures to 321f. In order to view these files, you will need to have a copy of adobe reader installed on your computer. The material most commonly used for the bellow seal is austenitic stainless steel 1. The key part of bellow sealed globe valves is mental bellow. The other end constitutes a static seal between the valve body and bonnet. Bellows seal gate and globe valves dixon eagle division. The lower end of the stainless steel bellows welded to the stem to prevent stem from fluid erosion. Globe valve bellow seal globe valve manufacturer from. Newton bellow valve is committed to design, development, manufacturing and sales of highgrade valve, and occupies more than 8000 square meters. Hence the bellow seal valve is the only solution to prevent air from passing through the stuffing box.
Multiply bellow with long service life made of stainless steel. The use of a bellows seal valve significantly reduces external leakage. Boah16 and h25 with nonrotating stem and nonrising hand wheel with position indicator 4. Wta bellows sealed globe valves provide the highest fugitive emission protection for use in chemical processing including chloralkali, phosgene, and fertilizer applications. Selection of bellow sealed valves is the only solution for this problem. Globe valves valtra bellow seal globe valve 200 al. Bellows seal valves reduce fugitive emissions of toxic, lethal, or regulated fluidsgases, minimize maintenance, reduce life cycle costs, and optimize productivity in process. Bellows globe valve adopts internal bellows structure. Our metal bellows are designed and tested to meet or exceed the requirements of mss sp117 bellows seals for globe and. Globe valves valtra bellow seal globe valve 200 al pn 10160 dn 1550 globe valves valtra bellow seal globe valve 200al pn1040 63160 dn65400 dn65200 10 6100. View online catalogue download as pdf 444kb din standard gland packing globe valve. Hastelloy c276 kegel andor seat inserts leakage class ansi class vi characteristics.
Stop valve with bellows seal, maintenancefree pressure and. Since the bonnet bottoms metaltometal in the body, the bonnet gasket compression is determined by the depth of the gasket step on the bonnet. Size ranges nps 12 2 dn 15 50 pressure rating asme classes 150 800 standard connections threaded, socket weld, flanged. Ukl bellow seal valves are designed and manufactured as per international standards, such as ansi, api, astm, bs, din, mss,etc. The design is applicable both conventional cage and tendril trim. Forged bellow seal gate valve, socket weld ends acc. Corresponding documents must be available for the identification of ukl.
Ypattern globe valves provide the maximum cv possible in a globe valve. Bellows seal valves help eliminate fugitive emissions of toxic or regulated fluids and prevent corrosive or harmful atmospheric conditions from entering the process. Double wall bellow seal as standard size 12 inch 3 inch spindle with fine thread as standard lubricating nipple as locking device as standard spindle with bellows seal. Welded seal which isolates system fluids to prevent leaks to atmosphere. Bellow seal valves application of products the use of metal bellows seal gate and globe valves has been successfully applied for over 30 years. Dec 28, 2015 bellow valve factory, zhejiang newton fluid control co. Bellows sealed globe valves imi critical engineering. The limits given in the technical codes must be complied with. Screwed and seal welded joints replace flanged joints to ensure zero leakage the valve is thus hermetically sealed valve seating can be refurbished by simply lapping the body seat and replacing the disc, which can be performed in the field or end users shop.
Jul 27, 2017 bellows sealed globe valve, through the bellow part, to ensure that the valve stem design to reach zero leakage. Bellow sealed valves are a new type of industrial process valves. Operation manual hand wheel, chain wheel electric actuator pneumatic actuator, hydraulic actuator actuator located out of the valve globe valves can be equipped with a locking device. Valve types include gate, globe and check with ratings of 150 lbs. Din standard bellows seal globe valve nrs application. It is the connection between cover and stem with automatic roll welding. Bellow seal valves because they aid, help and complementstringent fugitive emission laws. In addition, we specialize in the design, manufacture, and testing of eagle brand bellows seal gate and globe valves. Though performance seems to be satisfactory initially, they are bound to leak through gland after some operations. Bellows sealed globe valves bellows sealed globe valves for more than 60 years, our bellows sealed globe valves have been specified and installed in nuclear power plants throughout the world. The valves are designed so as to be earthquake resistant. For more than 60 years, our bellows sealed globe valves have been specified and installed in nuclear power plants throughout the world. When bellows do not work, the stem packing will prevent from leak. One of only four manufacturers globally to claim this distinction, wta products meet the new euro chlor standard, which defines demanding specifications for bellows.
The material of the valves covers a105,wcb, stainless steel alloyed steel, etc. These valves are popular due to the leakage free performance hence, called zero leak valves or emission free valves. The mental bellow can keep the stem part no leakage. Two port maintenancefree bellows sealed shutoff globe valve for steam, water and other fluids. Globe valves valtra bellow seal globe valve 200 al pn 10. It has about 160 staffs, 22 senior professional titles employees and more than 120. Instruction manual for bellow seal valves uniklinger. Valtek mark one control valves end connections, flanges and bolting the mark one valve is designed with the bonnet and seat ring gaskets fully retained. They also minimize maintenance and reduce life cycle costs in. Newton bellow valve is committed to design, development, manufacturing and sales of highgrade valve, and occupies more than 8000 square. Specially designed for nuclear duties, these high integrity valves are available in.
Din bellow seal globe valve is applicable to cutting and connectingthe medium in various pipelines, such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry, etc. Therefore the use of bellow seal valve is on increase. Globe valve with buttweld ends dindvgwregistration test approvals tu. At powell valves, we maintain a quality management system with strong emphasis on the continual improvement of quality, engineering, manufacturing, and business related processes learn more. Globe valve 0 0 000 angle valve 0 000 3way valve 0 3 000 0 3 5 standard normalising fins bellows seal cryogenic extension h, h3 manual handwheel p, p3 pneumatic, series 37, 38 pneumatic, series 4 e, e3 electric 0 2 0 0 p 3. Stem with protected external thread for high reliability. Our facilities incorporate all aspects of valve design, development and manufacture ensuring that swi can o. Enviroseal bellows seal bonnets improve sealing capabilities of fisher valves and provide long life for applications where emissions escaping from a valve.
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