Gnb corporation designs and manufactures vacuum gate valves, angle valves, chambers and accessory components for the worldwide scientific and industrial vacuum markets. Velan offers one of the most comprehensive valve product lines available from any manufacturer. This article explains the construction, working and usage of gate valves and the usage of these types of valves in ships and marine vessels. Our linear gate valves have an ultraslim profile and their smaller volume results in lower out gassing and faster pump down. Gate valve stock photos download 4,489 royalty free photos. Ulfm gate valve nrs awwa c515 water works and fire.
Through conduit double expanding gate valve industrial valves. T174ss gate valve bronze, class 300, block pattern. Gate valves gear operated bare stem for actuation 2 piece bonnet design 4 pdf machine is a pdf writer that produces quality pdf files with ease. Pressure seal valves are now the default style of valve for use in power plants. Gate valves are isolation valves with generally two seats and a gate moving up and down by use of a stem operated either by wheel, gear or actuator. Today velans comprehensive range of api 602 gate, globe, check, angle, and bellows seal valves remain the leading choice for high performance in virtually any industrial application. Combine pdfs in the order you want with the easiest pdf merger available. Manufactured to exceed the requirements of the awwa c51509 standard, the body, bonnet, and wedge are of high strength ductile iron. Gate valves stock photos download 1,035 royalty free photos. A gate valve, or sluice valve, as it is sometimes known, is a valve that opens by lifting a round or rectangular gate wedge out of the path of the fluid. This kind of valve may belong to three main families. The gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gatewedge out of the path of the fluid. Download 4,489 gate valve stock photos for free or amazingly low rates.
Forged steel valves gate, globe, and check velan inc. A key feature of this valve is the ability to easily adjust the. Download 1,035 gate valves stock photos for free or amazingly low rates. In the event the expanding gate valve body cavity needs to be depressurized, please refer to step 11, thru conduit expanding gate valve. Egyptians, greeks and other cultures were able to drive the water from rivers and fountains for public use or irrigation. Velan forged steel gate, globe and check valves have been proven in critical service applications for over 50 years. Gate valve is usually for working condition in which the valve is not opened or closed frequently, and supports flashboard fully open or fully closed. Larger sizes have a unique feature in the actuator. Gnb kl group 3200 dwight road, suite 100 elk grove, california 95758 tel. Gate valve is usually divided into several types by seal part mode, such as. Gate valves, also known as sluice valves are one of the most widely used valves in both domestic and industrial applications. Unique to the industry, all gnb gate valves seal both ways against full atmosphere pressure differential. Installation, operation and maintenance manual valve repair. Further data according to vat catalogue vacuum valves 2004.
We produce gate, globe, check, ball, butterfly, knife gate, and engineered severe service valves and steam traps in sizes up to nps 64 dn 1600 and for services up to asme. The velan valvac threepiece ball valve with integral iso mounting pad is a rugged, lowcost ball valve for many industrial, commercial and oem automated applications. In addition to an adequate vacuum sealing mechanism, gate valves should. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straightline flow of fluid and minimum restriction is desired. Our onepiece molded elastomer gate seal provides for zero leakage around the top of the knife gate. The iso mounting pad will allow quick and easy direct mounting of iso compatible quarterturn actuators. Newcon knife gate valves kgv perform extremely well in wastewater treatment facilities. Our cast iron gate valves also conform to awwa c509. I can use acrobat distiller or the acrobat pdfwriter but i consider your product a lot easier to use and much preferable to adobes a.
Gate valves looks similar to a globe valves from the outside due to the fact that they often are producers from the same body and it could be a challenge to. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. If we divide the valves into two categories most ball valves and solid slab gate valves fall into the category that seals by means of system pressure, however expanding gate valves and globe valves seal by means of the closing force from the wheel gear actuator. Inside our gate valve, the wedges used are completely encapsulated with epdm rubber.
Nov 01, 2011 the pressure design reduced the mass and weight of large high pressure gate valves by as much as 40%. Were here to help, contact us to learn which gates are best for your needs. A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate wedge out of the path of the fluid. They are sonamed because the part that either stops or allows flow through the valve acts somewhat like a gate. Cast steel gate, globe, check, and ball valves forged steel gate, globe, check, and ball valves tripleoffset butter. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar. Typically, when a newcon valve is rebuilt, it is done so with just the replacement of the liner and the gate seal, and for only 1015% of the cost of a new valve.
Since the flurry of pressureseal patent activity of the 40s and early 50s, valve design work has been focused on other types of valves, particularly ball. The stainless steel alloy solid wedge, integral seats and bidirectional service make the gate valve a good choice for higher pressures, temperature and. A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier gate out of the path of the fluid. The history of the valves since the ancient times, the men knew how to regulate water, either with stones or branches and trunks from the trees. This free online tool allows to combine multiple pdf or image files into a single pdf document.
Installation of a gate valve between the ion source and high vacuum region of a mass spectrometer ms facilitates cleaning and maintenance of ion source optics and inlet ion transfer capillaries while maintaining high vacuum conditions, and minimizing downtime. Brass gate valves si8 nibco pdf catalogs technical. Velan at a glance history founded in 1950 people over 1,800 employees product line a worldleading range of valves across all major industrial applications. Nve valves with actuators cylinder bracket assembly valves.
Brass gate valve brass body nonrising stem full port 200 psi14 bar non shock cold working pressure 1. Affordable and search from millions of royalty free images, photos and vectors. Our linear gate valves have an ultraslim profile, which makes them perfect for applications where space is limited and their smaller volume results in lower out gassing and faster pump down. This article is all about leaking gate valve problems and gate valves that dont operate correctly by martin smith an emergency plumber in manchester but also an agent that covers the whole of the uk with over 400 recommended engineers national.
The application of gate valve pneumatic control valves. Gnb gate valves have been providing reliable long term service to customers for 40 years. Jan 25, 1972 the gate valve further is composed of a slidable gate 10 having a plate portion 11 of a size larger than the opening created by the inlet port 3 and outlet port 4 and a shank portion 12 extending through the housing through upper cap casing in slidable cooperation therewith. Each of these versions are fully internally engineered. Gate valve bronze, class 300, block pattern, stainless steel wedge, t174ss the nibco bronze gate valve features a union bonnet for service where reparability inline is required. The wedge is fully vulcanized with avks own oil and gas resistant nbr rubber compound. Valves from a single source velan all your cryogenic 2 the cryogenic valve expertise of velan inc. Installation, operation and maintenance manual for power ball valves rev. The only knife gate valve that is 100% made in the usa makes newcon the number one selection for american iron and steel act ais funded projects in the municipal wastewater treatment industry.
From the most common application to the most severe, velan has a solution. Double block and bleed capability and high robustness are standard feature of this seat design. Gate valve for replacement of inlet capillaries in agilent. The gate faces can form a wedge shape or they can be parallel. Our pdf merger allows you to quickly combine multiple pdf files into one single pdf document, in just a few clicks. The production of through conduit gate valves is a part of our core business. Avk gate valves are designed with builtin safety in every detail. The wedge is fully vulcanized with avks own drinking water approved epdm rubber compoun. Continual improvements in design improve life and reduce cost.
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