1 Piece Floating Ball Valve

1 piece floating ball valves are manufactured in accordance with API 6D. The valve is configured in a forged bolted two-piece split-body design with a small diameter, suitable for medium/low pressure working conditions. Characterized by simple design, the valve seats are directly inserted into the body.
The upstream flow pressure pushes the free-floating ball against the downstream seat-the resulting compression provides a perfect leak-free sealing solution.
The stem is connected at the top of the ball and allowing the valve to open and close with a quarter-turn movement.
Material selection is fully customizable to meet the customer's project specifications and several unique features are available offering an enhanced technical solution suitable for aggressive offshore environment and corrosive and abrasive fluids.

VALVE DESIGN

Based on API 6D

TEMPERATURE RANGE

-150 to 662°F (-101 to 350°C)

SIZE

NPS 1/2-6 (DN 15-150)

PRESSURE RATING

ASME 150 - ASME 2500

FACE-TO-FACE

As per API 6D standard

END CONNECTIONS

RF, RTJ as per B16.5 &B16.47
SW, Socket Welded as per B16.11

BODY DESIGN

Forged/casting bolted two-piece

SEAT DESIGN

Soft or metal seated with Hardfacing on ball and seats

FEATURES

Secondary seals in pure Graphite
Anti-Static Device
Anti Blow out stem
Bi-directional tight shut-off
Low fugitive emission stem packing available
O-ring /Lip seals and Graphite configuration

OPERATOR

Manual: wrench or Gear with padlocking

TESTING & CERTIFICATIONS

Compliance with API 6D & ISO 5208 & API 598 inspection and testing
Fire safe and fire tested as per API 6FA/ 607
SIL 3 Certification as per IEC61508
Fugitive Emission as per ISO15848
PED 2014/68/UE

What is the role of floating ball valves in liquid control systems?

In liquid control systems, floating ball valves play a key role, and their main functions are reflected in the following aspects:

Control liquid level:

Floating ball valves can automatically control the in and out of fluids according to the height of the liquid level to ensure that the liquid level remains stable. This is achieved through the floating ball and control device inside it. When the liquid level rises, the floating ball rises and closes the valve to prevent more fluid from entering; when the liquid level drops, the floating ball drops and opens the valve to allow fluid to enter.

Prevent overflow:

An important function of floating ball valves is to automatically close when the liquid level exceeds the set value, thereby preventing liquid from overflowing. This feature makes floating ball valves particularly important in systems that require precise control of liquid levels, such as chemical processing, pharmaceuticals, and food processing industries.

Reduce leakage:

The floating ball valve adopts a high platform structure and an internal valve stem design, which can effectively prevent the valve stem from being blown out by the pressure in the pipeline. At the same time, wear-resistant materials such as polytetrafluoroethylene (or reinforced graphite) are used between the valve stem and the ball, which reduces the opening and closing torque of the valve, makes the operation more labor-saving, and reduces the risk of leakage caused by improper operation.

Fireproof and anti-static:

The conductive spring is set between the valve stem and the valve body and between the valve stem and the ball to avoid igniting flammable media due to static electricity and ensure the safety of the system.

Double protection of fire-resistant structure:

When the sealing ring is burned in the event of a fire, each sealing part of the floating ball valve can form a metal-to-metal hard sealing structure to provide additional protection.

Structural features and application scope:

The valve body of the floating ball valve is divided into two halves, and a metal sealing seat or a soft sealing seat is used as a sealing auxiliary structure between the ball and the valve seat. This design makes the floating ball valve have the characteristics of simple structure, easy operation, reliable sealing and wide application range. They are widely used in petroleum, chemical, natural gas, metallurgy, light industry, medicine, food, municipal and other industries.

In summary, floating ball valves play a key role in controlling liquid levels, preventing overflow, reducing leakage, preventing fire and static electricity, and providing dual protection of fire-resistant structures in liquid control systems. Its unique design and wide range of applications make it an indispensable part of industrial control systems.

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