Pump check valves are specially designed to protect pumps from water hammer, reverse flow and backspin in pump flow control applications. Working pressures type of operation pattern nominal size page no. It is a commend assumption that the plug in the plug valve is taper conic. A revised b16 proposal was voted favorably in june 1938, was approved by asa, and was published in 1939. The fact is that there is a huge verity of the inside construction of a plug valve.
Walworth plug valves are available in three different patterns to provide the efficiency and flexibility to meet the valve need of. The pattern indicates basic information about the valve. In api 60, api 599 and bs 5353, the variants are defined as short pattern, regular pattern, venturi pattern and full bore pattern, respectively. Az valves, one of the leader for sleeved plug valves. They can be used to the cutting and connection of pipelines medium that are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, power industry etc under nominal pressure of pn1. The different variants refer to face to face dimension, plug port and shape.
Basic valve is a fully assembled bare shaft valve cast iron 175 psi 150 psi astm a126grade b 1210 kpa 1035 kpa c. Plug valves operation instruction and service manual. System will only function when valve is closed and the isolation valve is open. The solution for the valve problems soft seated plug valves. As a leading industrial valve manufacturer, we offer a wide range of products. The pratt ballcentric plug valve carries the normal pratt quality, value and reliability. Nordstrom iron plug valves are manufactured at sulphur springs, texas.
Plug valves henry pratt company valve manufacturer. Its safe, reliable top loaded design allows throttling of fluids and thruport rodding of the valve. Fisher et, eat, and etr slidingstem control valves fisher et, eat, and etr generalpurpose control valves figures 1, 2, and 3 are used for throttling or onoff control of a wide variety of liquids and gases. Buy quarter turn plug valves valves swagelok swagelok. All specifications in this catalog are for valves of this material.
The pratt ballcentric 2way plug valve is used for the isolation and control of a wide range of applications from water and wastewater to slurries powder, air and other mediums. Summarization of plug valve straight way flow bore patterns the plug valves manufactured by shanghai koflow machinery co. Consult a pratt representative for special pricing and availability. The promise of quality is backed by the nibco warranty, customer service expertise, specification and selection assistance. Valves plug valve, incorporating proven features and user benefits from over sixty years of experience in endless valve applications.
Plug valve specifications form 599 r0916 page 1 of 1 general. An alternative to the original two valve system, the general valve twin seal plug valve has just one doubleseated bubbletight valve the upstream and downstream seals provide the same function as the two block valves the body serves as a. How to order when ordering pratt 3way valves, specify style letter of the port position required. Tighten the flange bolts or studs in a crisscross pattern. On 1 inch size, ult parts kits may be used in existing dr plug valve bodies to extend the life of these. Port defining lips were developed and patented by tufline. Figure 2 the type of materials carried in the pipeline and the location of the valve determine the correct installation procedure. As one of the leading manufacturers of cavity free plug valves and special valves, az supplies to production plants in the chemical, petrochemical, pharmaceutical, paper, food industries as well as for nuclear power plants and many other areas. A walworth lubricated plug valve can be adjusted with the valve in line, helping to extend the service life of the valve.
Sizes range from 12 to 24 and end connections include screwed. Size and pressure ranges that meet or exceed the requirements of api 6a, latest edition. Ul, cga, and aga approval is available on valve mod. Partner for highest demands in specialized valves for more than 50 years. Eccentric plug valves from kennedy valve are designed for consistent performance, durability and longevity.
With the most complete multiturn product line for a single source manufacturer, our valves are produced to the. Quarterturn plug valves are an economical, reliable alternative to ball valves available in a variety of body and seal materials. Short pattern plug valves have compact face to face dimensions like a gate valve and port areas of 40% to 50% of a full bore plug valve. Plug valves, socket weld plug valve, 3 way flanged plug valve.
The super nordstrom steel plug valve is available in sizes from 12 to 4 in asme. Fluoroseal, nonlubricated, sleeved plug valves possess the stateoftheart in ptfe fluorocarbon seated designs. As standard protection the roco wave uses the proven epoxy resin coating, the erhardproenamel has been especially developed for valves with higher requirements. Pressure reducing valves, the watts industries expertise watts, inventor of the modern pressure reducing valve concept, designs and manufactures a complete range for all needs.
Thermally actuated the valve is activated by a change in temperature in the handled media. Lubricated plug valves eccentric plug valves oilfield butterfly valves series 300 eccentric plug valves installation, operation and maintenance b. Use a c clamp to depress the plug so that the snap ring can be removed. Electric actuated plug valve, 110 vac power for openclose service manual. Sleeved plug valves according to din standards are valves with soft sealing plug. Unlike ptfelined plug valves, the ngk design provides the added assurance and durability of a 38 thick cast lining an obvious advantage over ptfelined valves that have a mere 18 thick lining. Nsf 61 approved powder, bunan plug, vtype packing, self lubricating type. The tufline standard dual stem seal is clearly superior to those of gate valves, ball valves, other plug valves, and many expensive valves with extended auxiliary packing. Dimensions are in millimeters unless otherwise indicated. A valve that uses a resilient seating material for the primary seal and a metaltometal seat for a secondary seal. We would like to show you a description here but the site wont allow us.
A reliable and engineered product capable of bidirectional flow at fully. Its purpose is to assure installation interchangeability for valves of a given material, type, size. The ports are typically at opposite ends of the body. The best for you and your customers, because depending on quality products ensures peace of mind. Dezurik pef 100% port eccentric plug valves technical. The plug in this kind of valve has one passageway going through it.
Achieve dependable lowtorque, quarterturn operation with swagelok quarterturn plug valves that use a simple, compact design to deliver full flow and positive shutoff. The 7300 is recommended for use in applications where instant onoff and visual flow indication is essential. Short pattern plug valves have compact face to face dimensions like a gate valve and port areas of 40% to 60% of a full bore plug valve. Ari valve corporation valve balancing plugs valves with balancing plugs have to be installed with medium flowing over the plug 3 as indicated by flow direction arrow on valve body. The disk is in plug shape, which has a passage to pass the flow. The cameron general valve twin seal double blockandbleed dbb plug valve reduces this constant wear by using two seating slips mounted independently on a tapered plug by dovetails, which mechanically retract from the seating surface prior to rotating. Properly selected and maintained control valves increase efficiency, safety, profitability, and ecology. The facetoface dimension for flanged valves is the distance between the extreme ends which are the gasket contact surfaces. Drawings are provided for reference purposes only and pratt industrial does not assume any liability for incorrect use of drawings or dimensions. Valve body with end connections incorporating flanges that mate with corresponding flanges on the piping. Plug valve is quarterturn rotary motion valve that uses a tapered or cylindrical plug to stop or start the flow. Ball valves ansi b16 valve face to face di mensions also available short pattern.
Gate valves, check valves, globe valves, nonreturn valves, dualplate check valves, and high performance butterfly valves. Floecentric plug valve seat and plug face provide tight seal, wear resistance. Walworth lubricated plug valves are designed to fulfill the demand of a cheap product that includes the main characteristics of a lubricated plug valve. Endtoend dimensions apply to flanged valves where the gasket contact surfaces are not located at the extreme ends of the valve. Here, nordstrom engineers, quality assurance inspectors and other valve production experts are involved in the manufacturing process from start to finish to assure high standards of excellence. Industrial valve manufacturer valve company powell valves. Plug valves shall be of the non lubricating, eccentric type and shall be designed for a working pressure of 175 psi for valves 12 and smaller, 150 psi for valves 14 and larger. The plug valve is a 90 deg quarter turn operated valve. The round port design available on sizes 12 12, offers the least resistance to slurry, sludge, and fluid flow resulting in less erosion, longer service life, and reduced pumping costs. This provides an economical valve for services where some reduction of flow rates can be tolerated. If any valve becomes plugged, or does not operate properly, contact a supervisor immediately. Ports are openings in the valve body through which fluid can enter or leave. All three valve designs have single ports, balanced valve plugs, and cage guiding.
Short pattern plug valves have compact face to face dimensions like a gate valve and rectangular port areas of 40% to 60% of a full bore plug valve. Series 5400 valves are rated 200 psi 1,380 kpa, ductile iron body astm a536 654512, nsf 61 approved powder, buna n plug, vtype packing, self lubricating type 316 stainless steel thrust bearing. An isolation valve is fixed in the open position to prevent the need for. Valve dimensions face to face dimension mm of valves according to ansi b16. Valve dismantling 1 the eccentric plug valve is a top entry valve. Automatic body bleed valve to atmosphere or upstream customer option the check valve is operated by a plunger that opens the bleed valve by a coupling cam, during the closing of the valve. Durco g4 plug valves set the standard for sleevelined plug valves. Specialized services for hf, chrlorine, firesafe, and jacketed valves are common within the durco g4 line. Flanged end sleeved plug valves class 150, 2way, fig. You can depend on the superior performance of ngk plug valves. The pratt ballcentric plug valve available in sizes ranging from 12 72 is designed specifically for wastewater applications. Give details of end connection and pipe dimensions when ordering. Utilized in many industries including chemical, petrochemical, life sciences, power generation, steel pickling operations, and pulp and paper. The top entry valve design is provided in 3 different models.
The check valve is operated by a plunger that opens the bleed valve by a coupling cam, during the closing of the valve. Valve 812 are shown with double d stems which are standard. This provides and economical valve for services where some reduction of flow rates can be tolerated. All dimensions are approximate and for illustrative purposes only. Suspended solids in vertical line where the possibility of overhead drainback exists, install. Valves shall provide tight shutoff at rated pressure. The configuration provided to make a joint with the pipe. Sleeved plug valves are nonlubricated quarterturn valves that achieve sealing through the use of a compressible sleeve as a sealing member. The specific design features contributing to the superiority of this product. Use this code for proper mating and pressure limits. Install valve laying on its side so plug rotates 90 to open.
Resun plug valves can be supplied in ductile iron on special orders. A servo valve that produces pneumatic control in response to an electrical signal input. With little or no maintenance and trouble free operation, a high integrity bubble tight seal is provided both inline and to atmosphere. Steel body and iron cap in classes asme 150 and 200 cwp. Xomox flanged end sleeved plug valves crane chempharma. In open position, this bored passage is in line with the flow. Each valve has a size and pressure code designated on the valve. Control valves are an increasingly vital component of modern manufacturing around the world. The hoke 7300 series plug valve provides full flow or leaktight shut off with just a quarter turn. Plug valves, socket weld plug valve, 3 way flanged plug valve, plug valve flanged jacketed, mumbai, india. If you have trouble viewing any document in your browser, right click and select save target as to save on your computer.
As in other types of walworth lubricated plug valves, the surfaces of the single gland lubricated plug valve are pressure sealed. Nonshock working pressure ratings pressure ratings valve size material 312 80 300mm 1436 350 900mm flow characteristic 0 10 20 30 40 50 60. A control device using a cylindrical or conically shaped plug with a hole through it that can be turned 90 degrees to the water or natural gas flow. Valve usage should be monitored by a qualified supervisor or foreman. Venturi pattern these valves have facetoface dimensions in accordance with. Valve size raised face welding end ring and groove raised face ring and groove raised face welding end ring and groove class 900 class 1500 class 2500 welding end 2 2 12 3 4 6 8 10 12 14 16 18 20 22 24 50 65 80. Product description, dimensions and specifications pdf. Improved slidercrank gearbox, minimising pressure surges and leakages. Top catalog product categories valve plug valve durco 4 300 class, d4 flanged 3 way plug valves click to enlarge durco 4 300 class, d4 flanged 3 way plug valves. Wrench operated lubricated plug valve with adiustable stop for lancing or throt fling service. Sleeved plug valves 24 3z standard port plug valve fig 120, 320, 620 3z full port plug valve fig 120fb, 320fb, 620fb 3z 3way plug valve. Plug valve plug valves the solution for the valve problems soft seated plug valves. Pneumatic the valve is activated by a pneumatic actuator or cylinder to open and close valve. Fcd nvabr100400 steel plug valves 5 super nordstrom twobolt cover plug valve refer to page 9 for detailed description.
Durco t4e lined plug valves flowserve corporation home. The simplest and most common general type of plug valve is a 2port valve with two positions. The heavyduty ngk ceramic interior construction assures. Plug valve patterns 8 super nordstrom twobolt covertype iron valve 9 super nordstrom regular pattern iron plug valve 10 nordstrom bolted glandtype iron plug valves 11 dynamic balance plug valves 12 nordstrom screwed glandtype iron plug valves dimensional tables 1435. All weights include either wrench or gear operator facetoface dimensions comply to ansi b16. When the valve is closed, anticlockwise rotation of the hand wheel lifts the pilot plug 3. Do not look into the end of the valve to check for debris, blockage, or for any other reason. Plug valves are available in four different patterns. Balancing valves are designed specifically for heatingair conditioning systems in multistory commercial buildings. G4, g4zhf and g4r user instructions english 514 table 1 cap screws studs hhcs finished heavy hex head cap screw hcs finished hex head cap screw stud stud dimensions per asme b18. General valve twin seal dbb valve schlumberger products. Built to exacting standards, the eccentric plug valves are available in sizes 324 for 80% port and 348 for 100% port with a variety of end connections.
Plug valves function similar to a ball valve where the plug has an opening in the plug that allows fluid to flow through the valve when it is open. A plug valve is a quarter turn valve that has a conical or cylindrical plug that is rotated within the valve body to stop flow when needed. Gas safety control homestead lubricated plug valve. If valve is slow to open or close, remove it from service. In many applications they operate virtually maintenance free for decades.
Pressure balanced lubricated plug valves scv valve, llc. Spe cial range available on customer request and high temperature design api 6a annex g available. Iron plug valve short pattern class 200 cwp single gland design features short pattern walworth design offers big oppening port and end to end dimensions same as a gate valve. Upon request from industry and government, asme has been defining piping safety since 1922. Pressure balanced lubricated plug valves api 6d short pattern regular pattern venturi pattern class. However spline shafts are also available for these sizes as an option. The control valve handbook has been a primary reference since its first printing in 1965. Work began on a revision in 1953 to include buttwelding end valves, plug valves, and control valves in both cast iron and steel.