The Alfa Laval SMP-BC Mixproof Valve is a hygienic pneumatic double-seal valve that safely handles the simultaneous flow of two different products through the same valve without any risk of cross-contamination. Standardized and cost-effective, the top-loaded valve is designed for quick leakage detection to maximize product safety and low maintenance due to few moving parts. It is often used in Cleaning-in-Place (CIP) lines and can also be used in other systems handling products.
The Alfa Laval SMP-BC Mixproof Valve is designed for hygienic applications that require additional safety, leakage detection and CIP in the dairy, food and beverage, personal care and many other industries.
Benefits:
- Hygienic double-seal mixproof valve
- Versatile, modular design meets most hygienic application requirements
- Cost effective
Working principle
TheAlfaLavalSMP-BC Mixproof Valve is controlled by means of compressed air from a remote location. The valve is fitted with two small pneumatic normally open (NO) valves, a detecting valve and a CIP valve. The valve plug has two seals, which form an atmospheric leakage chamber. Any product leakage is discharged through the detecting valve. The leakage chamber may be cleaned by supplying a CIP system into the detecting valve. The SMP-BC is insensitive to water hammer in the product line above the plug.
Standard design
The Alfa Laval SMP-BC Mixproof Valve consists of valve bodies, bonnet, plug and an actuator. Two versions are available: a shut-off valve with one valve body and a shut-off valve with two valve bodies. A plug clip system and clamp rings secure the valve bodies to the actuator. The valve can also be fitted with the Alfa Laval ThinkTop V50 and V70 for sensing and control of the valve.
Technical data:
- Max. product pressure (depending on valve specifications): 1000 kPa (10 bar);
- Min. product pressure: Full vacuum;
- Air pressure: 500 to 800 kPa (5 to 8 bar);
- Temperature range: -10°C to +140°C (EPDM);
- Product wetted steel parts: 1.4401 (316L)
- External surface finish Semi-bright (blasted)
- Internal surface finish Ra ≤ 1.6 μm
- Optional: Bright Polished Ra ≤ 0.8 μm
- Other steel parts: 1.4301 (304)
- Product wetted seals: EPDM (optional: NBR, FPM)
- Other seals: NBR
Type 20 and 30 body versions are on request available in following configurations:
- Tee welded on lower port in 0 or 90 deg. version. Type: 21 and 22
- Bend welded on lower port in 0, 90, 180 or 270 deg. version. Type: 11 and 12
Options
A. Male parts or clamp liners in accordance with required standard.
B. Control and Indication: ThinkTop V50 and V70, IndiTop.
C. Actuator with stronger spring.
D. Larger actuator for valve sizes 38-51 mm/DN40-50.
E. CIP installation kits.
F. Other valve body combinations.
G. Service tools for actuator.
H. Tool for plug seals (Necessary for changing the seals).
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