Pipeline ball valve maintenance and management techniques
1. Maintenance and management of the construction period
During the construction period of the ball scientific management and maintenance is very important in the construction of the equipment management in place, maintain science, not only can ensure safety, and can greatly reduce the construction and operational management of costs. Major should note the following aspects: ① to the correct method of handling the valve, the valve to avoid mechanical damage. When the valve lifting, lifting belt can not be tied to the stem or actuators lifting, otherwise it will cause the stem bending diameter valve seal failure and gearbox destruction; Continue reading “Maintenance and Troubleshooting for natural gas pipeline ball valves”
Power plant ball valve Construction -standard production
Now there are some power plant ball valve manufacturers are machining ball valve bodies from forged bar stock materials with massive wall thicknesses far exceeding that of rising stem valves. Some adopt the same ball valve body design on 1.5-inch and smaller sizes for all pressures classes—so that an ASME Class 1500 valve may actually have an ASME Class 4500 body. Usually Class150 300 600 800lb will have same body for SW/NPT connection valve, 900lb 1500lb will be one class.
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Nickel Aluminum Bronze Butterfly Valve
Nickel Aluminum Bronze Butterfly Valve NI-AL Bronze Butterfly valve
Double eccentric and Three eccentric Butterfly valve
Butterfly valve Seat: PTFE RPTFE NBR EPDM FPM Nylon
or SS+PTFE SS+RPTFE SS+PEEK SS+graphite
SS can be 304 316 316L 304L nickel Inconel Monel Duplex steel Super Duplex teel F51 F53
Supply Scope :Valves for Project: Yibal Khuff Cogeneration Power Plant
Supply Scope :Valves for Project: Yibal Khuff Cogeneration Power Plant
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API6A wellhead Gate Valve Choke Valve- Lukoil Offshore Superstructure Platform
LUKOIL is one of the largest vertically integrated oil and gas companies in the world. Together with our partner, we have been succesfully executed challenging project for Lukoil Russia Off -Shore Superstructure Platform . One part of them is Wellhead Valve which design and manufacture as per API6A and meet High Pressure and High sophisiticated -(particle wash) enviroment.
Include API6A slab gate valve (Mud gate valve2″ 3″ 5″ pressure : 7500PSI 5000PSI, PSL2 PR1 EE PU) and Throttle Control Valve-Choke valve(3″ PSL2 PR1 EE PU).
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Sight Glass Valve Casting
Stainless-steel-straight-type-sight-valve-body-casting：Double window Straight sight Glass offers a quick, economical and reliable way to check the medium through industrial process lines. Our products are featured with strength, reliability and durability, accuracy,. It has widely used in Petroleum, chemical, pharmaceutical, food industrial.Our glasses are designed with perfection and precision to withstand extreme temperature.
Triple offset Butterfly Valve for Slovakia power plant
These DN600 PN6 Metal seated Butterfly valve are triple offset design with seal ring: ss+graphite Body material: A216 WCB Double flanged connection with special face to face:600mm. The butterfly are used for cooling water in slovakia power plant ~~. Total 16 pieces require shipment in 50 days.
Mark of casting : in body there will be :valve size, valve pressure, valve body material, valve heat no. valve flow direction.
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API high pressure and high temperature power plant gate valve
The power plant valve usually should be high pressure and high temperature with medium water, steam, air. So material WCB, WC6, WC9 are widedly usded as main body material. The valve are designed with pressure seal bonnet for class 600 900, 1500, 2500 depends on size and working condition. The valve are usually with butt weld ends connection to avoid any leakage.Hard face sealing surface are often adopted.
Following are some pic of Power plant gate valves SGV offer.
Body inner side machining:
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Top entry Metal seated Butterfly valve for pipeline
Top entry butterfly valves are different with side entry butterfly valves, top entry butterfly valves are designed able to disassemble valve and take trim out without remove valve from pipelines. Usually these valve are metal seated triple eccentric with weld connection.
The cost of top entry butterfly valves are higher than side entry butterfly valves much more. but it deserves it sometimes. These valves are designed with carbon steel/alloy/stainless steel material body and disc. Pressure scope: PN2.5 ~PN40. Design standard: EN593 or API609.
Top entry three eccentric butterfly valves with weld ends PN25 DN600 Multi-layers seal ring: SS+graphite.
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Forged steel Valve are ready for Deliver in time by Stock and Semi-finished Plan/arrangement
Nowadays there is an trend require for quicker and quicker deliver with small and customized order in Valve industry, especially for small sized forged steel valve. Due to limit valve kinds and low unit value compare with large size valves, stock is workable and semi-finished products able for most normal material like A105, 20steel, F304, F316. LF2 and F11, F22, Monel, Duplex steel, Hastelloy alloy are possible when required. Connection: double flanged, socket weld, Threaded, butt weld valves and main four stock type valves.
Semi-finished products makes us to complete most 90% order winthin 2 weeks and shipment in 3 weeks. Like API602 A105 gate valves 800lb Socket weld connection, Stock or part semi-finished products are available. Semi-finished products reduce stock level and able to cover most production line. Usually just fine machining and assemble/test needed.
