We have been iso9001 accredited since 2007, additionally many of our individual products also hold many industry renowned accreditations and are tested for a multitude of severe environments. Lubricated plug valve, sleeved plug valve, ptfe sleeved plug valve, teflon sleeved plug valve, jacket plug valve, ptfe jacket plug valve, ptfe lined plug valve, teflon lined plug valve, pfa lined plug valve, fep lined plug valve, eccentric plug valve, general valve, dbb plug valve, dual seal plug valve, double seal plug valve, double block and bleed plug valve, dbb expanding plug valve, double. Double block and bleed valve dbb relief devices forum. Dbb valve with injection quill flbw pipeline injection quill fluid inlet check valve. We have been iso9001 accredited since 2007, additionally many of our individual products also hold many industry renowned accreditations and are tested for a.
Fkicgven140819 fitok group fitok gmbh headquarter sprendlinger landstr. About 97% of these are valves, 1% are hydraulic parts. Dafram dbb solutions lead to several advantages such as. The most basic thing that a user is looking for when they specify a double blockandbleed valve is a compact valve or valve system that provides more reliable isolation in critical areas than a. More compact then superlok dbb valve, adding further space and weight saving possibilities. Integral dbb valves process interface in one compact block, blockbleed or double block and bleed valve assembly one piece forged body available sizes. A onepiece integral forging incorporating up 3 ball valve or mixture of ball and needle design. Dbb valves, subsea valves, control valves, solenoid valves.
Suitable for isolation of lines, sampling or chemical injection service the valves can be supplied using ball, outside screw and yoke osy, bolted or threaded bonnet needle valves. Optional graphite packing completion of dbb ordering numbers designator nil pkpe pkperp ball valve seat material reinforced ptfe pk. China dbb valve, china dbb valve manufacturers and. Based on customers preferred valve type and application, we can then offer ball, gate, or expanding plug valve options with dbb capabilities.
Our double block and bleed dbb valve range allow you to positively isolate both sides of the valve with a bubbletight seal, and vent any excess medium through a needle valve. Dbb plug valves being the most commonly used in the petroleum industry, are prone to continuous maintenance and expensive repairs. Dbb ball valve is burn for replace the traditional complex line connection ball valve, reduce leak in the system and achieve emissions fast, close the function. In 1st phase of project we are going to install new tiein valves for all of tiein connection from skid to existing lines which planned for next plant. Double block and bleed valve dbb posted in relief devices forum. Butech also offers double block and bleed needle valves and single block and bleed needle valves in various sizes and materials for higher. Lubricated plug valve, sleeved plug valve, ptfe sleeved plug valve, teflon sleeved plug valve, jacket plug valve, ptfe jacket plug valve, ptfe lined plug valve, teflon lined plug valve, pfa lined plug valve, fep lined plug valve, eccentric plug valve, general valve, dbb plug valve, dual seal plug valve, double seal plug valve, double block and bleed plug valve, dbb expanding. Engineered valves dbb gate valves high integrity positive.
The 2008 note points out that this valve does not provide positive double isolation. It includes options for highpressure, critical processes, such as our xc range, which are all api 6a tested and manufactured in accordance with asme standards. Oring relief valve bleed valve seat sizes of tapped bleed hole valve size inches dn hole 2 4 50 100 12 npt 6 8 150 200 34 npt 10 12 250 300 1 npt how to order example. When autoplay is enabled, a suggested video will automatically play next. The primary valve will be connected to a secondary instrument valve. Do not open the printer cover until the touchscreen indicates the print is complete. Fluoroseal double block and bleed valves provide isolation on your line without the combined cost of a complex, multivalve system.
Alco valves dbb range our double block and bleed dbb valve range includes our new xc range, designed for supercritical applications with challenging conditions. Printed in england by toptown printers ltd barnstaple devon 0703 july 2003 parker hannifin. Dbb as a single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of ventingbleeding the cavity between the seating surfaces. A 2 dn 50 ansi class 150 fullport valve 9150 in doubleblockandbleed construction dbb with raisedface. Double block and bleed ball valves are aimed to get a double barrier on the piping, and bleed the. Your benefits at a glance highquality materials use of highquality materials for maximum performance. Design standards according to api 6d length of the structure according to asme b16. We get a lot of questions regarding dbb, dib1 and dib2 ball. The problems presented by these emissions are multiple not only does losing valuable media through leaks carry an economic cost, but the emis.
Sizes inch dn 12 15 12300 ansi class lbs 150 4500 api rating psi 3000 15. In 1982 we received the bs5750 manufacturing standard proving our quality has always been one of our core principals. Hoke hm series integral gyrolok catalog for other valve types on how to order. Keep containers closed, and keep out of the reach of children. Your email address will not be sold or shared with anyone else. Butechs double block and bleed ball valve combines two isolating ball valves and a central needle bleed valve into one compact manifold. It is very easy to upgrade your existing single isolate ball valve installation. Therefore these types correspond to the overall dimensions of gate valves those have typically the same. Figure 2 shows a standard dbb valve closed and in the doubleblock and bleed condition. Fitok tube fittings, valves, tubing, sampling systems. The combining of piping and instrument valves into a single unit has benefitted various.
They are available in bore sizes ranging from 2 through. Api 6d defines a doubleblockandbleed valve dbb as a single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve with a means of ventingbleeding the cavity between the seating surfaces. When assured valve shut off and absolute isolation are required, dafram provides double block and bleed valves that consist of two main inline isolation valves and a bleed valve, used to drain or vent trapped fluid between the two obturators. The duraseal dbb valve s variable zero leak rate ensures that maintenance, repair, leak locating and hydrant testing can be done quickly and safely. In a piping system the use of dbb and dib valves create different levels of flow control, particularly when line maintenance is foreseen. Throughconduit dbb slab gate valve calvary valve inc. There are 286 dbb valve suppliers, mainly located in asia. Double block and bleed files 3d cad model library grabcad. Dear forum experts, currently i am working in a project which is including installation of a new dehydration skid in existing platform.
Dual seal dbb expanding plug valves production valves. These features are requirements by end users such as petrobras, aramco, bp and pemex which. Double block and bleed expanding plug valve specifications and features. All parker hannifin double block and bleed designs comply with the following codes. A wide variety of dbb valve options are available to you, such as high pressure. A pressure gauge or transmitter will then be installed downstream of the instrument valve. Every valve buyer and manufacturer seems to have a different idea of what the term means for valve selection, which can result in misguided specifications or the wrong choice of valve type.
This is achieved by the design of two ball, gate, globe, needle, etc. From the trunnion mounted and floating ball valve design, dafram derived a series of dbb valves with several different constructions and features to meet customer requirements. Peek needle valve packing standard graphite standard graphite rp. Double block and bleed valves flowserve corporation. Mp01 sbbdbb slimline monoflange, double flange this slimline monoflange is designed to replace the primary and secondary process valve assemblies which are usually needed for absolute or gauge pressure instruments with remote or direct seal. In 1st phase of project we are going to install new tiein valves for all of tiein connection from skid to existing lines which planned for. With our extensive experience and understanding the root cause failure on these valves, we embarked on our. The advanced features incorporated onto our range of floating and trunnion ball valves are also designed into these double block and bleed valves. Double block and bleed manifolds and flanged products. This feature can be achieved with one single valves cw a bleed port between the obturators. Instrument manifolds, flanged products, ball valves and hand. Fuel hydrants at airports need to allow for quick maintenance, repair, leak locating and testing. We are india based most reputed and reliable manufacturers and suppliers of duplex stainless steel double block and bleed valves.
Our manufactured duplex stainless steel double block and bleed valves operate on the principle that isolation can be achieved from both the upstream and downstream process flow pressures. You will receive a pdf with stock valve pricing emailed to you. Springapplied and air or hydraulicallyreleased, these brakes feature longwearing, selflubricating polypak seals to eliminate premature twisting failure. We get a lot of questions regarding dbb, dib1 and dib2. The term double blockandbleed dbb carries a lot of misconception when its used to describe valve functionality. Sep 11, 2017 we get a lot of questions regarding dbb, dib1 and dib2 ball valves published on september 11, 2017 september 11, 2017 18 likes 2 comments. A twin ball double block and bleed valve can have the same facetoface dimension of a standard ball valve weight and costs saving. Page 2324 meeting the iso standard page 2531 ultralow. The following graphics describe the differences in how the valves perform. Ansi 150, 300, 600 and din pn 16, 40 custom size and length of drain. Fitok tube fittings, valves, tubing, sampling systems one.
Double block and bleed with ultralow emission options. The top supplying country or region is china, which supply 100% of dbb valve. Duplex stainless steel double block and bleed valves. This ranges allow you to positively isolate both sides of the valve with a bubbletight seal, and vent any excess medium through a needle valve. You will receive a pdf with stock valve pricing emailed to you immediately upon signup. Bv06 dbb bv06bv06 dbbdbb withith probeb bv07 dbb ansi b16. Double block and bleed valves bonney forge corporation. Bfe double block and bleed valves provide the reduction of potential leak points. By simply using a double block and bleed dbb valve with facetoface and endtoend dimensions acc. A welded flange, connected to a primary ansi class isolating valve. Sealexcel is dedicated and trusted double block and bleed valve manufacturers providing bleed valve solutions with high quality stainless steel gradeplease visit us to see our full range of fittings to meet all your requirements of tube fittings and valves, sealexcelwelllok tube fittings represent outstanding value and are 100% interchangeable with other major manufacturers.
Dss double block and bleed valve or a duplex stainless steel dbbv, primarily known as double block and bleed valve dbb can perform the tasks of 3 separate valves 2 separate isolations and 1. Design is available in side entry, bolted, welded body and for onshore, offshore top side or subsea configurations. Double block and bleed ball valve utmost saves installation space. Dbb ball valve is burn for replace the traditional complex line connection ball valve reduce leak in the system and achieve emissions fast close the function. Floating ball or trunnion mounted ball construction. The valves offer significant savings in both weight and space as well as reducing installation time and cost. Injection quills and sampling probes are available in different lengths and materials, depending on specific customer needs, and can be welded or screwed to the dbb valve. This requires a valve that can close quickly and positively seal off the relevant sections.
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