Sealing materials are selected for the valve service conditions. Cast steel valves forged pressure seal valves api 6a valves. Meridiantm api 6d check valve manufacturing range size in inches size 2 3 4 6 8 10 12 14 16 18 20 24 30 36 40 42 48 50 54 56 60 asme 150 asme 300 asme 600 asme 900 asme 1500 asme 2500 denotes meridiantms standard design. The swing type check valve is designed as full bore full open structure in order to clean. So what what most people really want is a check valve that meets the. For the most part it is the api 600 of check valves however it has a couple odd manufacturing requirements that many standard designs do not meet ex. Check valve bs 1868, api 6d, api 602 a check valve prevents potentially damaging backflows to protect equipment like pumps and compressors. Api 6d valve, pipeline valve supplier and manufacturer in. Intervalve check valve models ivc and ivct are primarily single plate swing check valve with a short pattern wafer body conforming to the api6d and asme b16. Manufactured in strict conformance with the following industry standards iso 9001 quality system api 6d specification for pipeline valves asme b16. Size range 236 pressure class asme 150 2500 api standard. Mar 16, 2015 api 6d covers the design, manufacture, testing, and documentation for pipeline ball, check, gate, and plug valves for pressure ratings up to asme class 2500.
Design features swing check valves main design features special features general design api 6d or api 6a face to face dimensions asme b16. Full port swing check valves api 6d scv valve, llc. Size range 2 24 asme classes 150 900 size range 2 8 asme class 1500 size range 2 6 asme class 2500 it is recommended that the valve installer is familiar with the mss sp92 valve user guide. Where service conditions warrant largerthanstandard bypasses, it is recommended that the installation of the bypasses be around the. Swing check valves csbs termovent sc industrial valves. In its standard design it will allow the passing of pipeline pigs foam inside pipe of any design without any modification. The standard specifies configurations for the following types of valves.
August 1, 2015 this specification defines the requirements for the design, manufacturing, assembly, testing, and documentation of ball, check, gate, and plug valves for application in pipeline and piping systems for the petroleum and natural gas industries. Meridiantm api 6d check valve manufacturing range size in inches size 2 3 4 6 8 10 12 14 16 18 20 24 30 36 40 42 48 50 54 56 60. Dual plate check valves valves provided with double disc. Piping codes, valve standards and ball valve selection. Api 6d cast steel swing check valve dhv industries. Gwc produces a full line of api 6d full opening swing check valves in both carbon steel and low temp materials as well as full stainless steel as required. Types of check valves different check valves types of. Meridiantm api 6d check valve manufacturing range size in inches size 2 3 4 6 8 10 12 14 16 18 20 24 30 36 40 42 48 50 54 56 60 asme 150 asme 300 asme 600 asme 900 asme 1500 asme 2500 notes. A renewable seat extends the life of the valve by allowing all internal parts and seals to be replaced with the valve body still installed in the pipeline. Redline format does not incorporate changes from any addenda. Complete valve maintenance is extremely quick and safe. Wellhead assembly api 6a valve wellhead gate valves. Pbv api 6d check valves swing style check valves swing style check valves, api 6d, check valves, global flow technologies, pbv. Check valve bs 1868, api 6d, api 602 projectmaterials.
Check valves are available in the following designs. The from 1502500lb size 2 48 with full opening design, function of a check valve is to prevent reversal of flow this series of check valve can be capable for pig ball automatically and promptly and this type of valves are cleaning service. Light weight and compact wafer design dual plate wafer designs inherently makes this check valve lighter, which is only 1025% of the weight of conventional swing check valve, to saves money in initial valve cost and provides lower installation cost. Swing check valves full opening 1 design construction. Api 6d swing check valves ball valve manufacturers. Pbv api 6d flanged end swing style check valves author. This specification is not applicable to subsea pipeline valves, as they are covered by a separate specification, api 6dss. Pbv, fet, forum, forum energy technologies, api 6d check valve, petroleum, oil and gas, valves created date. Api 6d full opening swing check valves specifications. Kfs diversity in check valve configurations and materials of construction provide opportunities to service customers in many different markets. Api 6d valve, pipeline valve supplier and manufacturer in china. The duochek wafer valve design is generally stronger, lighter, smaller, more efficient and less expensive than conventional swing check valves. Api 6d check valve cast steel check valve products. Meridiantm api 6d check valve manufacturing range size in inches size 2 3 4 6 8 10 12 14 16 18 20 24 30 36 40 42 48 50 54 56 60 asme 150 asme 300 asme 600 asme 900 asme 1500 asme 2500 denotes meridiantms standard.
Flow coefficient cv is the volume in us gallons of water at 60f that will flow per minute through a. This specification defines the requirements for the design, manufacturing, assembly, testing, and documentation of ball, check, gate, and plug valves for application in pipeline and piping systems for the petroleum and natural gas industries. Raising the bar when it comes to providing unequalled customer service and delivery performance, vintrol has raised the bar. One of the most important features of walworth cast steel valves is its guarantee to meet and exceed 50 ppm maximum low fugitive emissions leakage rate as furnished off the shell without a customers special order requirement. G6d024 this specification defines the requirements for the design, manufacturing, assembly, testing, and documentation of ball, check, gate, and plug valves for application in.
Follow the example and use the figure number chart below to specify the valve you need. Main valve 2to 4 5to 8 10 or higher bypass valve 12 34 1 the bypass valve is attached to the side of the main valve with the stems of both the valves in parallel and pointing upward. The valve has a simple but reliable and robust construction. Swing check valves ansi swing check valves class 900 dimensions and weights nom size in 2 21. Valve standards from api the american petroleum institute api spec 6d specification for pipeline valves. Swing check valves are available in straight body design and ypattern design. Types of check valves different check valves types of nrv.
Swing check valves valve disc is provided with antirotations pin. Body material as per carbon steel valve astm a216 wcb, stainless steel st. Handwheel operated valve gear operated valve api 6a slab gate valve working pressure rating size operator a mm b mm c mm h mm weight kg figure 2116 handwheel 295 52. Tom wheatley swing check valves are available with either an integral seat or renewable seat. In its standard design it will allow the passing of pipeline pigs foam inside pipe of any design. Our products are manufactured and tested in accordance with respective api, asme, and ansi standards. Api 594 dual plate check valve api 6d axiai flow check. Full opening swing check valves to api 6d or api 6a suitable for pig passage are also available. Piston check valves normally upto sizes 2, larger sizes are also available both tpattern and ypattern are available. This international standard specifies requirements and gives recommendations for the design, manufacturing, testing and. Functioning as standard check valve 1ship unloading to lng terminal. Nsv cast steel swing check valves are widely used in the industries of oil, chemical, medicinemade, fertilizer, city construction, etc. Proven technology for individual valve solutions worldwide.
Cast steel valve as per api 6d api 600 api 609 bs 5351 bs 1873 flanged end as per ansi b 16. Under lowpressure conditions, the valve provides tight closure that offers a costeffective, lowmaintenance solution to prevent backflow. The flapperless design is gentle on the seat as the piston rises and lowers with increased. Through conduit api 6d swing check valves calvary valve. Throughconduit api 6d swing check valves the swing check valve is designed as a through conduit check valve manufactured and tested to api 6d and ansi b16. Scv piston check valves are quiet operating valves that effectively prevent backflow. Scv valve manufactures a premium array of check valves. Check valve is used to stop back flow in a piping system. The disk is suspended from the body by means of a hinge pin and seals against the seat which is integral with.
Sep 20, 2017 check valve bs 1868, api 6d, api 602 a check valve prevents potentially damaging backflows to protect equipment like pumps and compressors. Api 6d check valve cast steel check valve products nsv. Nonreturn valves allow the flow of the fluid in one direction only and block reverse flows. The swing type check valve is designed as full bore full open structure in order to clean the pipeline. Valves manufactured by reliable valves shall be furnished in one of the following classes. Api 6d covers the design, manufacture, testing, and documentation for pipeline ball, check, gate, and plug valves for pressure ratings up to asme class 2500. This specification is not applicable to subsea pipeline valves, as they are. This specification is applicable to valves for the following.