Floating Metal Seated Ball Valve

Product Overview

The Floating Metal Seated Ball Valve is designed for severe service applications where conventional soft seated ball valves may fail due to high temperature, abrasive particles, or demanding operating conditions.

Unlike soft seated designs that use PTFE or other polymer seats, metal seated ball valves use metal-to-metal sealing surfaces to provide improved resistance to heat, wear, and erosion. The floating ball design allows the ball to move slightly under line pressure, pressing against the downstream metal seat to achieve shut-off.

Raymon Floating Metal Seated Ball Valves are available in different body materials, ball coatings, seat hardening treatments, pressure ratings, and end connections according to actual working conditions.

Key Features

• Floating ball design with metal-to-metal sealing structure
• Suitable for high-temperature and abrasive service conditions
• Improved wear resistance compared with soft seated ball valves
• Hardened ball and seat surfaces available
• Suitable for steam, thermal oil, slurry, powder, and particle-containing media
• Compact structure for small and medium pipeline sizes
• Available in threaded, flanged, socket weld, and butt weld connections
• Manual, gear-operated, pneumatic, and electric operation options
• Suitable for severe service applications where polymer seats are not recommended

Technical Specifications

Product Type: Floating Metal Seated Ball Valve
Valve Design: Floating ball, metal seated, metal-to-metal sealing
Nominal Size: DN15–DN200 / 1/2″–8″
Pressure Rating: PN16, PN25, PN40, Class 150, Class 300, Class 600
Body Material: WCB, WC6, WC9, CF8, CF8M, Duplex Stainless Steel
Ball Material: SS304, SS316, A105, F304, F316
Seat Material: Metal Seat, Hardfaced Seat, Stellite Seat
Ball / Seat Treatment: Hard Chrome Plating, Tungsten Carbide Coating, Stellite Hardfacing, Nitriding
End Connection: Threaded, Flanged, Socket Weld, Butt Weld
Operation: Lever Handle, Gear Operator, Pneumatic Actuator, Electric Actuator
Applicable Media: Steam, Thermal Oil, Slurry, Powder, Gas, High-Temperature Fluids, Abrasive Media
Testing Standard: API 598
Design Standard: API 608, ISO 17292

Metal Seated Design

The metal seated design uses hardened metal contact surfaces between the ball and seat. This structure provides better resistance to high temperature, abrasive particles, and erosion compared with soft seated ball valves.

For demanding applications, the ball and seat can be treated with hard chrome plating, tungsten carbide coating, Stellite hardfacing, or nitriding to improve surface hardness and service life.

Metal seated ball valves are commonly selected when PTFE, RPTFE, or other soft seat materials are not suitable due to temperature limits, solid particles, or severe operating conditions.

Floating Ball Structure

In a floating metal seated ball valve, the ball is not fixed by trunnions. Under line pressure, the ball moves slightly toward the downstream seat to create sealing contact.

This design is compact and suitable for small to medium valve sizes. Compared with trunnion-mounted metal seated ball valves, floating metal seated ball valves are often used where space, cost, and compact structure are important, while still requiring better heat and wear resistance than standard soft seated valves.

Typical Applications

• Steam systems
• Thermal oil systems
• High-temperature gas lines
• Slurry and particle-containing media
• Powder conveying systems
• Petrochemical process lines
• Power plant service
• Mining and abrasive media pipelines
• Severe service industrial shut-off applications

Why Choose Raymon

Raymon provides metal seated ball valve solutions for high-temperature, abrasive, and severe service applications. Our Floating Metal Seated Ball Valves are designed to offer improved durability where conventional soft seated valves are not suitable.

We support customized selection based on pressure rating, temperature, medium, particle content, body material, ball coating, seat hardening treatment, end connection, and operation method. For steam, thermal oil, slurry, powder, and severe industrial media, Raymon can help provide suitable valve configurations according to actual working conditions.

FAQ

Q1: What is a Floating Metal Seated Ball Valve?
A: A Floating Metal Seated Ball Valve is a ball valve with a floating ball structure and metal-to-metal sealing surfaces. It is designed for high-temperature, abrasive, or severe service applications where soft seats may not be suitable.

Q2: What is the difference between metal seated and soft seated ball valves?
A: Soft seated ball valves use polymer seats such as PTFE or RPTFE and are suitable for clean media and standard temperatures. Metal seated ball valves use metal sealing surfaces and provide better resistance to high temperature, wear, and abrasive media.

Q3: Can this valve be used for steam service?
A: Yes. Metal seated ball valves are commonly used in steam and high-temperature service, depending on body material, seat material, and surface treatment selection.

Q4: Is this valve suitable for slurry or particle-containing media?
A: Yes. With suitable hardfacing or coating treatment, the valve can be used for slurry, powder, and abrasive media applications.