Introduction to Top Entry Ball Valve
The top entry ball valves are a valve with a ball sealed in the center of the valve that is mounted at the top of the spindle.
Top entry high performance ball valves like the ones we offer are a popular and reliable choice. They operate at any angle and are designed to handle full bore or reduced bore pipeline sizes. Trunnion mounted top entry ball valves can also be used for an array of applications including gas, oil, water, sewage and more.
Top entry Ball valves range with the single- and double-piston seat valves, along with a variety of seal types, to provide an effective double block and bleed (DB&B) in both closedand in open position.
Construction Materials and Features
Features a top entry design for easy and natural placement, this ball valve has a corrosion and chemical resistant flow control knob and a self-aligning spherical seat valve that can be easily serviced. The valve is made with high-quality materials that are durable for long-lasting use.
Top entry ball valve body configurations include full bore, Reduced Bore, and a variety of materials including stainless steel, carbon steel,forged steel etc.
API 6D/ISO 14313, ASME B16.34 design, is the best-selling good quality, top entry ball valve
Floating Ball Design
Our floating top entry ball valve is made of high-quality materials, and is a durable and reliable product for water supply. The ball can rotate 360 degrees, which makes it easy to install, and the handle on the top of the valve is easy to use.
Trunnion Mounted Design
Trunnion top entry ball valve Body design, complete with a wide range of high temperature and high pressure applications, high performance, and long-term stability.
The Ball valve body materials are available in cast stainless steel,cast steel steel,forged steel.
Standard ASME Forging Materials
ASME A105,A350 LF2,A182 F304 ,A182 F316，A182 F304L,A182 F316L
Standard ASME Casting Materials
ASME A216 WCB,A352 LCB,A351 CF3,A351 CF8,A351 C3M,A351 CF8M
Our line of ball valves are designed to meet the needs of a variety of industries with a wide range of application requirements:
API 6D/ISO 14313 standard design,one piece top entry,Full or reduced port,Metal seals seated or soft seals seat.
Seat Design Features
Soft Seated Seals Design
Soft seat material mainly including TFM, PTFE, RPTFE, PEEK, POM, PCTFE.
Metal-to-metal seated Seals
Metal seats material including s 316 SS, monel,inconel etc.
Class 150 to Class 2500
-20° F to 250° F (-29° C to 121° C)
Flanged ASM E B16.5;butt welded ASME B16.25;Socket welded ASME B16.11;ASME B1.1
Other Option Features
The valves are manufactured and tested to fire safe API 607/API 6FA to assure the operation available in case of fire.
The top entry ball valve is a new generation of the valves, with an anti-static design and a simple structure, it is highly reliable and easy to operate.
Double Block and Bleed
Trunnion mounted top entry ball valve is available in double block and bleed design.It ensures minimum fluid loss when the valve is open by providing double block and bleed features. The ball and seat design also makes this valve very reliable in high-pressure applications, which are sometimes prone to leakage due to ball freeze or corrosion.
Single piston effect (SPE)
Single Piston Effect (SPE) is a type of valve that operate on the principle of the force applied to a fluid by the piston. This type of valve also has a large bore in comparison to other types, making it best suited for high flow rates.
Double piston effect seat
Double piston effect is created by a seal that has two sealing points. This design creates a hermetic seal that is leak-free for the life of the valve
Side Entry Ball Valve VS Top Entry Ball Valve
Side entry ball valves are generally installed on the side of a tank or vessel. This type of valve is often used in industries such as petrochemical, chemical, food and beverage, power generation and marine. Side entry ball valves are also used for isolation purposes.
Side entry ball valves are different from the more common top entry ball valves in that they need to be oriented horizontally for operation. The valve assembly includes an internal spindle rod and packing gland which creates a seal between the valve body and the pipe to be closed off. The rod is threaded at one end which screws into a bushing at one end of the body tube to provide rotation for opening and closing the valve. The packing gland is located around this threaded end to prevent leaks by creating a seal with the pipe when tightening down on it.
Severe Service Compatibility
A severe service compatibility top entry ball valve is one that is designed to have a tight fit with the material it is passing through. This type of valve can be used for a variety of industries and applications, including those in the oil and gas and pharmaceutical industries.
The main difference between this type of valve and other valves on the market is its ability to maintain tight seal while in use. This means that the valve will not leak or release its contents during use, so it is ideal for high-pressure applications. A severe service compatibility top entry ball valve will generally cost more than other valves, but it is worth considering if you need a product that will keep your materials safe from leaks or spills.