Swissfluid AG
Industriestrasse 40
CH-5600 Lenzburg
Schweiz
T +41 62 889 20 10
F +41 62 889 20 11
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Check Valves
SBC Ball Check Valves
Swissfluid fully lined SBC Ball Check Valves are primarily used in applications with highly corrosive media, and are suitable for horizontal and vertical piping systems. Due to the solid PTFE ball residing in a high-volume chamber, pressure losses are minimal. The flexible sealing lips at the ball seat area enable positive shut-off with very low pressure differentials. Conversely, the ball allows media to flow freely during the entire opening operation.
This flanged valve is easily and securely installed in DIN as well as ANSI piping systems, and the body is clearly marked with a directional arrow.
The robust and maintenance-free design utilizes ASTM A-216 WCB (1.0619) as standard body material. Bodies can also be furnished in AISI A316 stainless steel (CF-8M / 1.4408) and AISI A316L (CF-3M / 1.4404) for service in corrosive atmospheres. Face-to-face dimensions are in accordance with EN 558-1 row 20 and ASME B16.10.
PFA and PFA-AS (anti-static) linings are mechanically locked in place. The standard material for the solid ball is virgin PTFE, but balls made from polypropylene, hollow PTFE balls, and encapsulated metal balls are also available.
The standard borosilicate glass plates (which meet DIN 7080 specifications) allow safe visual control of liquid or gaseous process media at all times. SBC Ball Check Valves are suitable for vacuum applications and can safely operate at temperatures of -40°C (-40°F) to 200°C (392°F), and maximum differential pressure of 10 bar (145psi).
SSC Swing Check Valves
Swissfluid fully lined SSC Swing Check Valves are designed specifically for applications with highly corrosive media. They can replace similar valves made from exotic – and expensive – alloys. This valve is suitable for horizontal and vertical piping systems thanks to its ingenious construction where the disc is in full contact with the housing in horizontal applications. Additionally, the disc comes with a precision-machined lip which helps achieve leak-free sealing with minimal pressure differential, and its full-bore lined SS disc snaps into place in the lined body and cannot drop out during installation.
The state-of-the-art design of our SSC Swing Check Valve allows easy and accurate positioning of our valve in ANSI as well as DIN piping systems with the fully integrated centering lugs. An additional, easily accessible drill hole situated between the centering lugs further facilitates installation of larger sizes.
Minimum pressure loss is achieved by the large opening angle of the disc in our Swing Check Valve.
The standard lining material for our Swing Check Valves is highly permeation-resistant PFA or PFA-AS (anti-static). Options include solid metal discs made from SS316L, Titanium Gr. 2 and Hastelloy-C. Fluoroplastic linings of the body and fully encapsulated disc are mechanically-locked assuring form-stable adhesion over the entire application range, which is critical in high temperatures or vacuum conditions.
Our standard body material is ASTM A-216 WCB (1.0619). AISI A316 stainless steel (CF-8M / 1.4408) bodies can be furnished also, for service in corrosive atmospheres.
Our Swing Check Valves are available wafer style; however, for heavy-duty applications flanged lug connections are available on request. Face-to-face dimensions are in accordance with EN 558-1 row 20.
Not only do SSC Swing Check Valves distinguish themselves with their quiet operation, they are also maintenance-free and can be used with differential pressure up to 10 bar (145psi) in temperatures ranging from -40°C (-40°F) to 200°C (392°F).
The self-sealing disc protects the system from pressure surges common in longer piping systems, and acts as an excellent barrier to the unintended draining of media in piping systems during maintenance and repair work.
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