The fc valve has bidirectional sealing and a nonrising stem making it ideally suited for drilling manifolds, xmas trees, and severe service. Gate valve maintenance and adjustment procedure valve maintenance manual 3 i. Alfalfa valve, butterfly valve, gate valve, air vent, valve assembly drawings side views dwg pdf. If it is used overseas, please inquire with us separately. The series dm gate valves are available in asme classes 600, 900, and. A part of a valve trim that surrounds the closure member and may provide flow characterization and or a seating surface. Jec gate valves are outside screw, rising stem, bolted bonnet construction, threads are away from the line fluid and easy to lubricate. Caution, before any attempt is made to disassemble, verify that the valve is sufficiently cooled down, depressurised, isolated from system pressure and secured against accidental pressurisation. We also look at the operating characteristics of the gate valve, its advantages, disadvantages, and its applications. Pinch valves pinch valves are used for flow control application, usually to regulate another parameter such as slurry level or thickener underflow % solids. It is recommended that pipe be kept approximately 0.
Poppet valves have an advantage over plate valves because there is less accumulation of the powder like substances that are usually to be found in the gas. Gate valves for cameron style fc gate valve drilling. 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. Ball valves pdf price list 1019 effective 10072019 excel price list 1019 effective 10072019. When an assembly of fittings on a pipeline makes one section of pipe out of line and parallel to a second section, then it is known as an offset fig. Mud valves flap valves pressure relief valves shear gate valves. No special tools are needed to change gate and seat assembly. They are commonly used where a minimum pressure drop is.
The pipe has exterior and interior surfaces interrupted by a pipe gate opening cut into the pipe. Kitz bronzebrass valves are produced in modern factories used exclusively for valve manufacturing. Chapter 8 details typical control valve installation and maintenance procedures. Book depository books with free delivery worldwide. A gate valve is the most common type of valve that used in any process plant. Section 5020 valves, fire hydrants, and appurtenances 1 revised. Gate valves are not suitable for throttling purposes. Both the station and the pump corresponding to the gate valve should be vented to atmosphere. Control valves are an increasingly vital component of modern manufacturing around the world. Tighten the bolts and nuts gradually w ith a torque wrench to the specified torque level in a diagonal manner.
Hva gate valves installation and maintenance manual ideal vacuum. Valve functions and basic parts of valve control valve. Installation, operation and maintenance manual gate valves 20 1. Us20190186640a1 expanding gate valve assembly with.
All gate valves shall be used only in full open or full close position. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. The compact expanding gate valve is constructed for increased. It serves as the principal element of a valve assembly because it is the framework that holds everything together. Gate valves globe valves swing check valves tilting disc check valves gate valves serve as efficient stop valves with flow in either direction. It may also provide stability, guiding, balance, and alignment, and facilitate assembly of other parts of the valve trim. If valve is removed from service, lubricate the body cavity before returning it to the line. Camco gate valve with builtin clear adapter 3inch sewer fittings ready to use construction 39053. The valve operating principle relies on a flexible section of pipe being flattened between pinched two moving bars like a vice. Actuation automated assembly packages pdf price list 0619 effective 06032019 excel price list 0619 effective 06032019. Gate valves work by inserting a rectangular gate or wedge into the path of a flowing fluid.
Jordan valve s focus has been, and continues to be, industrial regulators and control valves. The seat rings are steel and makeup part of the valve trim. In appreciation to our customer for purchasing our product, we have prepared this operation manual to assist you in the operation. Valves shall conform to the latest version of awwa standard c509 covering resilient seated gate valves for water supply service. Please note that the brand names of pressure relief devices covered. Pressure seal gate valves gate valves are multiturn valves with rising stem i. Vent station and pump corresponding to gate valve to atmosphere. Actuation pdf price list 0619 effective 06032019 excel price list 0619 effective 06032019. The gate faces can be parallel but are most commonly wedgeshaped in order to be able to apply pressure on the sealing surface. The model fc gate valve is a field proven valve which provides reliability and interchangeability. Gate valves are used in many industrial applications including the oil and gas industry, pharmaceuticals, manufacturing, automotive, and marine. Solid wedges, flexible wedges, and split wedges are used in valves having inclined seats. The gate valve assembly includes a nozzle that includes a distal section disposed outside the pipe that connects to a.
Lubricate the body cavity after the valve has been in service one month. Each phase of the manufacturing process, from selection of raw materials to casting, forging, machining, assembly and. Valve body seat bearing lubrication fitting expanding gate assembly packing retainer bearing retainer nut seat bonnet seal ring gate guide array 2,0005,000 psi expanding and slab gate valves are available with either cast or forged steel valve bodies and bonnets. Section 5020 valves, fire hydrants, and appurtenances. Class 300 and 600 valves consist of a circular spiral wound gasket. Operating manual 2300 series resilient wedge gate valves.
Tighten the bolts and nuts gradually w ith a torque wrench to the. Class 150 gate valves consist of a square joint in 2 and an oval one for all other sizes. Kennedy valve model ksrw kennedy valve rsgv submittal sheets 81 kennedy valve 1. Pressure ratings mkp gate valves are designed for the maximum working pressure and test pressure tabulated below. Crane also manufactures bronze ball valves, iron wafer and lug butterfly valves, and bronze gate, globe, and check valves. Control valves a gate valve is a linear motion valve used to start or stop fluid flow. A leaky gate valve can be fixed simply by adjusting or completely replacing the washer or other packing material. It is a linear motion valve used to start or stop fluid flow. Types of gate valve and parts a complete guide for engineer. A new gate valve assembly is disclosed for installation onor in a pipe.
If the valve has a rising stem its position can be. The wedge, which is solid design, is forged or investment cast steel and is part of the valve trim. Remove bolts that hold bonnet actuator carriage assembly to body. This 3d animated video explains how a gate valve works. All installation, operation and maintenance instructions issued by the manufacturer of the pipe and the valves. Gate valves of all materials and seat types are easy to use and long lasting when they are installed and.
They are operated by a threaded stem which connects the actuator generally a hand wheel or motor to the stem of the gate. Stem seal, body, and seat are inspected for zero leakage under pressure, before acceptance. Depending on the valve service it can be supplied flatface gasket with graphite or ptfe. We didnt do it in order clearly we didnt read the instructions first. Always wear rubber gloves when handling the gate valve 1. Properly selected and maintained control valves increase efficiency.
Gate valves are under a lot of pressure to work properly. The valve lifetime in some difficult applications of the hydrocarbon processing industry hpi polypropylene or polyethylene production for example is usually 4000 to 8000 hrs. The wedge shall be totally encapsulated with rubber. Classification of gate valves is usually made by the type disk used. A general profile our company was founded in 1948, beginning with only one small product, a mixing valve. We have a very robust new product development process and over the years have grown our offering. This book includes extensive and proven knowledge from leading experts in the process control field, including contributions from the isa. Remove the greasefitting cap located on the bonnet flange od. Shashi menon, in transmission pipeline calculations and simulations manual, 2015.
Proper sizing, selection, manufacture, assembly, testing, installation, and maintenance of a pressure relief valve are all critical for optimal protection of the vessel or system. The cylindrical seat assembly fits into the machined body cavity and is. These brands are available in various sizes, end configurations and operating pressures up to 2400 kpa24 barg 350psi. A gate valve can be defined as a type of valve that used a gate or wedge type disk and the disk moves perpendicular to flow to start or stop the fluid flow in piping. Valterra t38 fixed wye double valve assembly with 3 hub x 112 rotating hub x 3 bay with cap,black. C515 ductile iron resilient gate valves mueller tapping sleeves. A gate valve is generally used to completely shut off fluid flow or, in the fully open position. Mkp gate valves are hydrostatically tested at assembly. T3 energy services lubricates gate valves on assembly. Class 900 and above gate valves consist of a ring type joint. The valves shall have a cast iron body, bonnet and wedge. Since crane valves are used in a variety of applications, the following descriptions may provide a basic guideline in the selection of steel valves.
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