High-Performance Ball Valve from JC Valves: 540Q / 516Q (Seal+)
The stainless steel flanged ball valve series 540Q and 516Q from JC Valves, also known as “Seal+,” are high-performance shut-off valves with flanged connections designed for industrial applications. Thanks to their high-quality construction, they maintain absolute tightness even under demanding operating conditions. The 1.4408 (CF8M) steel body, robust construction, and industry-standard certifications make them a suitable solution for many applications involving liquid and gaseous media.
The many years of experience and manufacturing expertise of JC Valves, combined with outstanding design, make this series a high-performance solution for reliable shut-off applications in industrial systems.
Depending on the pressure requirements, there are two variants of the Seal+ series: the 540Q in PN40 and the 516Q in PN16—as the model designations suggest. The high-performance Seal+ series features TFM seat rings, a graphite gland packing, a blow-out-proof stem, and an antistatic device. Thanks to the ISO 5211 mounting flange, the valve is suitable for mounting pneumatic and electric actuators. Does Fergo also offer this ball valve complete with an actuator, solenoid valve, and limit switches—including assembly, testing, and installation-ready delivery? Yes, of course! That’s exactly one of our strengths. In addition, we also offer the appropriate accessories, such as stem extensions, positioners, and sensors.
Technical Specifications and Features
The material used in the construction makes this ball valve suitable for a wide range of applications. The stem design is also top-notch and delivers reliable sealing performance.
- Two-piece body made of 1.4408 (CF8M) stainless steel
- Flange connection acc. to EN 1092-1
- Pressure ratings PN16 and PN40
- TFM seats
- Graphit-gland packing
- Blowout-proof stem and antistatic device
- ISO 5211 mounting flange for pneumatic and electric actuators
- Lockable stainless steel hand lever
Certifications
These high-performance ball valves meet significant requirements for industrial use. In addition to their high-quality design, the series is distinguished by key industry-specific certifications.
- Fire Safe according to ISO 10497
- TA-Luft / ISO 15848-1
- ATEX 2014/34/EU (II2GD)
- SIL 3 according to IEC 61508
- PED 2014/68/EU
- Transport of liquid chemicals and liquefied gases acc. to EN 14432
Fields of Application
The 540Q and 516Q stainless steel flanged ball valves from JC Valves are suitable for industrial shut-off applications at the highest level. Due to their outstanding design, which is engineered for absolute leak-tightness, they are used in a wide variety of industries.
Typical applications include:
- Chemical and Petrochemical Plants
- Oil and gas industry
- Transport of Liquid Chemicals and Liquefied Gases
- Energy and Power Plant Facilities
- Process and Engineering Technology
- Food and beverage industry
- General Industrial Piping Systems
Optional executions and custom variations
In addition to the standard version, we also offer this stainless steel flanged ball valve in various custom configurations and with additional options. This allows you to tailor the valve to the specific requirements of your application.
Available options include:
- V-Port Design: For precise control and throttling applications. Available with 30°, 60°, and 90° V-port balls.
- Oil- and grease-free cleaning: Oil-, grease-, and silicone-free cleaning in accordance with the specified purity requirements for food applications. The cleaning is done in compliance with FDA regulations as well as EU Regulation 1935/2004, particularly for use in the food and beverage industry. Also available with food-grade certified seats and seals.
- Double gland packing: Additional shaft seal for applications involving particularly hazardous or critical media.
- Shaft extension with double packing: For applications involving hazardous or critical media where a certain distance between the valve and the actuator is also desired.
- Cavity-Filler Design: To prevent media buildup in the body cavity and thereby reduce the risk of product buildup and cross-contamination.
- Cavity-relief seat rings: To prevent dangerous pressure buildup inside the valve body.
- Alternative seat materials: Depending on the medium and operating temperature, other materials such as TFM, PTFE, RPTFE, TFM+GF, PEEK, Devlon, Stansit, and metal are also available.
- Metal-seated ball valve: For applications involving particularly high operating temperatures or abrasive media.





