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GESTRA RK86/RK86A Check Valve

Description

GESTRA RK86 Check Valve is a high-performance wafer-type check valve designed for industrial fluid systems and suitable for liquid, gas, and steam media. GESTRA is a leading global valve brand, and the RK86 series is known for durability and installation flexibility. It is widely used in steam systems, chemical processing, and pharmaceutical applications. Whether preventing media backflow or ensuring system safety, GESTRA RK86 Check Valve provides reliable performance. The product complies with EN and ASME standards to ensure high quality and compatibility.

Key Product Features

  • Innovative design: The wafer design has an extremely short overall length and complies with EN standards, making it easy to install between PN 10/16/25/40 flanges. The spring mechanism supports installation in any position—horizontal, vertical, or inclined—without concern for the effects of gravity.

  • Pressure and temperature range: Supports pressure ratings from PN 6 to PN 40, with a temperature range from -40°C to +150°C, depending on the sealing material. It is suitable for high-pressure and highly corrosive environments. RK86A is particularly suitable for low-temperature or corrosive fluids.

  • Low pressure drop and high efficiency: The valve has a low opening pressure, ensuring smooth fluid flow and reducing system energy consumption. Metal-to-metal or soft-seal options, including EPDM, FPM, and PTFE, provide excellent sealing performance.

  • High durability: The corrosion-resistant design is suitable for water, steam, gas, and other media, helping prevent equipment damage caused by backflow.

Detailed Specifications

The following are the main specifications for GESTRA RK86 Check Valve, based on the official data sheet, to support industrial product selection:

  • Size range: DN 15-200 (NPS 1/2-8).

  • Materials:

Body: chrome steel 1.4317, equivalent to ASTM A743-CA6-NM, providing strong corrosion resistance.

  • Disc: stainless steel 1.4571, equivalent to AISI 316 Ti, ensuring long-term stability.

  • Seal: metal-to-metal as standard, or optional EPDM/FPM/PTFE soft seals for different media.

  • Spring: high-strength stainless steel, providing reliable closing force.

  • Connection standards: Compatible with ASME Class 125/150/300 flanges for easy integration into existing piping systems.

  • Applications: Ideal for steam boilers, compressed air systems, chemical pipelines, food processing, and pharmaceutical equipment. RK86A offers enhanced low-temperature performance for demanding industrial environments.

Why Choose GESTRA RK86 Check Valve?

GESTRA RK86 Check Valve provides excellent reliability and ease of maintenance while reducing the risk of system failures and improving overall efficiency. As a preferred product in the industrial valve sector, it helps users optimize fluid control and extend equipment service life. Whether used in a new installation or a system upgrade, GESTRA RK86 meets demanding application requirements.

To support transparency and accurate product selection, the official document links below provide detailed specifications, installation instructions, and pressure/temperature charts:

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