SBV Sanitary Ball Valve

Sanitary ball valves feature a full-bore design that enables full fluid flow with minimal pressure drop, making them ideal for handling viscous liquids or liquids containing particles in the food, beverage, chemical and pharmaceutical industries.

Related Industries:

Processed Foods, Beverages, Brewery, Home & Personal Care, Pharmaceutical, Biotech, Chemical

SBV Sanitary Ball Valve Benefit

Reliable full-flow performance

Alfa Laval sanitary ball valves (SBVs) are full-bore flow valves that provide on/off control with minimal pressure drop. The valve opening has a constant pipeline diameter, which enables fluids to flow freely through the valves when open. Flow restriction is comparable to that of a straight tube. This makes the SBVs suitable for:

• Handling fluids that are viscous or contain solid, semi-solid or abrasive particles
• Use wherever pigging of process lines is a major consideration
• Applications that require gentle product treatment
• CIP applications

Automated or manual control

For versatility, Alfa Laval SBVs can be supplied for manual or automatic operation.

Manual operation: SBVs feature stainless steel quarter-turn handles to mechanically lock the valves in either open or closed position.

Automatic operation: SBVs use standard maintenance-free pneumatic actuators. Actuated ball valves are delivered as normally closed (NC) valves that are controlled from a remote location by means of compressed air. These, however, can easily be rebuilt to a normally open (NO) configuration. Actuators can be fitted with Alfa Laval ThinkTop valve sensing and control units. Optional inductive proximity sensor and mounting bracket are available.

Compact, simple ball valve design

Easy to build into most any process line, Alfa Laval SBVs feature a straightforward floating ball design, which guarantees a tight seal and permits axial movement while preventing rotation. They are water hammer-safe and completely insensitive to pressure shocks in the pipelines.

Spring-loaded, self-adjusting seal rings provide highly reliable valve stem sealing. SBVs with automated control have inspection holes in the bonnet for easy inspection of the stem seal.

Easy-to-maintain ball valves

The three-piece valve design with few moving parts enables easy access to all valve components, making maintenance quick and easy. Durable PTFE valve seats help prolong service intervals. No special tools required for maintenance.

Sanitary ball valve range

The Alfa Laval sanitary ball valve range consists of two standard valve models.

• SBV with either manual handle or automated operation for applications that involve high operating pressures up to 16 bar and temperatures up to 150°C, and where the use of pigging systems is required.
• Tri-Clover® ball valves for applications that require full flow with minimal flow turbulence and pressure drop. An optional encapsulated seat is available for applications where reducing the risk of potential product entrapment is important.

For more information, please refer to Documentation.

Concept

SBV is a hygienic ball valve designed for use as a product valve, in applications within food, beverage, pharmaceutical and chemical industries. The full bore design with zero flow restriction makes SBV the optimum choice for viscous or particulate liquids.

Working principle

A precision made ball with a bore is positioned inside the valve body between two flanges and two PTFE valve seats. A 90° rotation of the valve stem is transferred to the ball and thereby opening or closing the valve. A special selected PTFE material grade secures long lifetime of the product wetted seals. Reliable valve stem sealing is achieved by the use of spring loaded and self adjusting seal rings. SBV is operated by a pneumatic actuator or manually operated by means of a handle with lockable positions. The valve is assembled with screws for easy inspection and maintenance.

Standard Design

The standard actuator is prepared for position indication with inductive proximity switches. The actuator is maintenance free. Two inspection holes in the bonnet connecting valve body and actuator allow for easyinspection of the stem seal tightness. Actuated valves are delivered NC (normally closed) and are easily rebuild to NO (normally open).

TECHNICAL DATA

Temperature

Temperature range: . . . . . . . . . . . . . 0°C to 130°C (EPDM)
However max. 95OC when operating the valve

Pressure

Max. product pressure: . . . . . . . . . . 1600 kPa (16 bar)
Min. product pressure: . . . . . . . . . . 0 bar

Actuator

Operating pressure: . . . . . . . . . . . . 600 – 1000 kPa (6 – 10 bar)
Temperature range: . . . . . . . . . . . . . 4°C to +60°C
Air consumption actuator ø104: . . . . 0.5 Nl
Air consumption actuator ø129: . . . . 0.75 Nl
Max. recommended pressure during
activation: . . . . . . . . . . . . . . . . . . . 600 kPa (6 bar)

PHYSICAL DATA

Materials

Product wetted steel parts: . . . . . . . . 1.4404 (316L)
Other steel parts: . . . . . . . . . . . . . . 1.4307 (304)
External surface finish: . . . . . . . . . . . Semi-bright (blasted)
Internal surface finish: . . . . . . . . . . . Bright (polished), Ra < 0.8 µm
Product wetted seals: . . . . . . . . . . . EPDM
Other seals: . . . . . . . . . . . . . . . . . . NBR

Note!

If welding both flanges, ensure that the flanges can be moved axially 30-40 mm depending on size to allow for valve maintenance (see manual for further details).
Actuated valves are delivered NC (normally closed) and are easily rebuilt to NO (normally open). See manual for further details.

Options

A. Male parts or clamp liners in accordance with required standard.
B. Actuator for mounting of the Alfa Laval.: IndiTop, ThinkTop or ThinkTop Basic.
C. Cavity cleaning connections, (ISO 228 – 6 ½).
D. Cavity fillers (encapsulating valve seats).
E. Handle and bracket for inductive proximity switches (manual valves).
F. Product wetted elastomer seals of NBR, Q or FPM.