SISTO-RSK_RSKS_8675.001_04-EN

Product catalog summary

Overview: The SISTO-RSK/-RSKS Swing Check Valve is designed for various industrial applications including chemical industry, power stations, cooling circuits, seawater desalination, and more. It offers reliable performance with low flow resistance and high functional reliability.

Key Benefits:

Low Flow Resistance: Features a streamlined straight-through body design.
Space Efficiency: Requires short stabilization distances and can be directly connected to a centrifugal pump.
Functional Reliability: Ensures reliable shut-off with a rubber-encapsulated valve disc and is fluid-controlled without rotating parts.
Flexible Installation: Can be installed horizontally, vertically, or inclined.
Pressure Surge Protection: Pre-loaded valve disc with a small closing angle for fast closing.
Corrosion and Abrasion Resistance: High-quality linings ensure long service life.
Hygienic Surfaces: Available with polyamide-coated body and EPDM-W270 valve disc for drinking water applications.
Vibration-Free Design: Stable valve disc position even at low flow rates.
Maintenance-Free: No operating elements with static sealing to atmosphere.

Materials:

Body and Bonnet: Nodular cast iron.
Valve Disc: Steel core encapsulated with various materials including IIR, NBR, EPDM, CSM, EPDM-W270.
Coating: ECTFE, Rilsan (DVGW-W270).
Lining: IIR, NRH.

Operating Data:

Nominal Pressure: PN 16.
Nominal Size: DN 25 - 300.
Max. Permissible Pressure: 16 bar.
Temperature Range: -20°C to +140°C (with specific conditions).
Differential Pressure: 1 bar - 16 bar.

Contact Information: KSB SE & Co. KGaA, Johann-Klein-Straße 9, 67227 Frankenthal, Germany. Tel: +49 6233 86-0. www.ksb.com

Catalog excerpts

• Chemical industry • Power stations • Cooling circuits • Seawater desalination • Process engineering • Water treatment • Water supply systems • Waste water treatment plants • General irrigation systems • Fire-fighting systems

Open the catalog to page 1

SISTO-RSK/-RSKS in closed position SISTO-RSK/-RSKS in open position 8675.001/04-EN/03.26/© KSB SE & Co. KGaA 2026 ■ Subject to technical modification without prior notice. • Streamlined straight-through type body design ■ Reduced space requirements • Short stabilisation distances (1x D) • Can be directly connected to a centrifugal pump ■ High functional reliability • Reliable shut-off by rubber-encapsulated valve disc • Exclusively fluid-controlled • No rotating parts, no extensions through the body wall • Can be installed in a horizontal, vertical or inclined position ■ Protection against pressure...

Open the catalog to page 2

SISTO-RSK_RSKS_8675.001_04-EN

SISTO-RSK_RSKS_8675.001_04-EN

Catalog excerpts

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