Orbit Ball Valve

Orbit ball valve, also known as rising stem ball valve, it is a cut-off valve in which the ball moves up and down and rotates along the track. When opened, the valve stem first lifts the ball from the valve seat, then rotates 90°. The valve stem drives the ball to rotate. The track groove makes the ball first detach from the sealing surface and then rotate to avoid friction. When closed, the opposite is true. Orbit ball valve has a small opening and closing torque, minimal wear on the sealing surface, can achieve rapid cutting off or flow regulation, has a long service life, and is suitable for high pressure. In addition, when valve is equipped with a pneumatic actuator, which can achieve bidirectional sealing. Therefore, it is widely used in pipelines that require frequent operations in industries such as petroleum, natural gas, and chemical engineering, and is particularly suitable for media containing particles and in fire and explosion conditions.

Design Feature：

Floating or trunnion type

Forced uni-directional seal

Antic static & fire safe design

Zero leakage

Rising stem

Bi-directional seal with pneumatic actuator

Top entry

Production Standard：

Design	API 608 / BS 5351
Face to Face	API 6D / ASME B16.10
Flange End	ASME B16.5 / ASME B16.47 / GOST 33259
Butt-welding End	ASME B16.25
Test	API 598
Fire Safe	API 607 / API 6FA

Technical Specification：

Size	1” ~ 28”
Class	150Lb ~ 1500Lb
Connection	Thread / Welded / Flange / Wafer
Operation	Lever / Gear / Pneumatic Actuator / Electric Actuator / Hydraulic Actuator
Temperature	Soft Seat: -60°C to +180°C Metal Seat: -196°C to +450°C
Application	Petroleum Refining / Chemical / Water / Power, etc.

Material Option：

Body	Carbon Steel (WCB, LCB, WC6, WC9, C5, A105, LF2) Stainless Steel (CF8, CF8M, CF3, CF3M, F304, F316, F304L, F316L) Duplex Stainless Steel (4A, 5A, 6A, F51, F53) Special Alloys (Hastelloy, Inconel, Monel, Aluminium Bronze), etc.
Ball	A105+ENP / LF2+ENP / F6A / F304 / F316 / F53 / K500, etc.
Stem	A105+ENP / F6A / F304 / F316 / F53 / K500, etc.
Soft Seat	PTFE / RPTFE / PPL / PEEK / Nylon / Devlon, etc.

Technical Advantages:

Frictionless Tilt-Then-Turn Action: This orbit ball valve lifts the ball from the seat before rotating, eliminating seal wear and friction.

Bi-Directional Sealed Security: When equipped with a pneumatic actuator, this orbit type ball valve delivers reliable bi-directional sealing performance.

Firesafe & Anti-Static Safety: Features a built-in anti-static and fire-safe design, engineered to withstand high-risk, explosive industrial environments.

Convenient Inline Maintenance: The top entry ball valve design allows quick component inspection and seat replacement without removing it from pipelines.

Extensive Temperature Resilience: Built by professional rising stem ball valve manufacturers to operate from -196°C up to +450°C using metal seats.

Low Torque Rapid Cut-Off: The optimized track groove reduces operational torque, enabling quick isolation or flow regulation across all pressure classes.

Versatile Applications:

Petroleum Refining Systems: This high-pressure orbit rising stem ball valve ensures secure isolation in crude oil extraction and production manifolds.

Natural Gas Processing: The ultimate orbit ball valve solution for frequent cycling in gas transmission lines and distribution networks.

Chemical Engineering Pipelines: Heavy-duty flow control systems designed to handle aggressive chemical processes and volatile intermediate compounds safely.

Power Generation Facilities: Reliable orbit type ball valve units engineered for high-pressure steam isolation and thermal power plant water systems.

Particulate & Slurry Handling: Perfectly suited for pipelines carrying abrasive media, catalysts, or fluids containing solid particles.

Hazardous Fire-Safe Zones: Built with an anti-static, fire-safe top entry ball valve configuration for extreme explosion-proof environments.

FAQs:

What is an orbit ball valve?
An orbit ball valve utilizes a unique tilt-and-turn mechanism that eliminates seat rubbing, which is the primary cause of valve wear in high-pressure systems.

How does an orbit type ball valve prevent wear?
During operation, the core of the orbit type ball valve cam-pivots away from the seat before rotating, ensuring frictionless movement and an exceptionally long service life.

What are the mechanics behind this design?
To fully understand this frictionless operation, explore our detailed guide on what is an orbit rising stem ball valve and why choose it.

Why select an orbit rising stem ball valve for severe service?
The specialized orbit rising stem ball valve ensures a reliable, mechanically energized bubble-tight shutoff, even in extreme temperatures and heavily fouling media environments.

What are the benefits of a top entry ball valve design?
A top entry ball valve allows for seamless, inline maintenance and component replacement without removing the valve body from the pipeline, minimizing operational downtime.

Why buy from certified rising stem ball valve manufacturers?
Partnering with leading rising stem ball valve manufacturers guarantees strict adherence to API 6D standards and rigorous high-pressure testing procedures.

What industries benefit most from these valves?
They are highly critical for pipelines that require frequent operations, such as chemical processing, oil and gas transmission, and high-temperature thermal fluid isolation.

What materials are available for the body?
We offer carbon steel, stainless steel, and high-performance alloys like Duplex or Monel to handle corrosive and severe high-temperature applications.

Are these valves suitable for frequent cycling?
Absolutely. Because the sealing surfaces do not rub against each other during opening and closing, they perform flawlessly over hundreds of thousands of cycles.

Is a fire-safe design standard for this equipment?
Yes, our designs are strictly certified to API 607 and API 6FA standards, ensuring critical sealing integrity during emergency refinery fire events.

What actuation options do you provide for automation?
The top mounting pad supports easy integration with heavy-duty pneumatic linear actuators, electric actuators, or manual handwheels with mechanical gear assists.