What is the difference between the SC20 Food+ and the SCS20?

The SC20 Food+ is the sample cooler unit alone, certified for food-contact applications under EC 1935:2004. The SCS20 is a complete kit that includes the sample cooler plus inlet valves and fittings, but it is not food-contact certified. Choose SC20 Food+ for food, beverage, or pharma applications; choose SCS20 for general industrial boiler rooms.

What cooling water flow rate is required for effective sample cooling?

Typical cooling water flow rates range from 0.1 to 0.6 l/sec depending on sample flow rate and boiler pressure. At 0.3 l/sec with a 10 bar g boiler, expect the sample outlet temperature to be approximately 4 °C above the cooling water inlet temperature. Detailed performance tables are available on request.

Can the SC20 be used for steam sampling as well as boiler water?

Yes. The SC20 is designed to cool both saturated water (boiler blowdown) and steam samples. The 316L stainless steel coil is rated for pressures up to 100 bar g, suitable for most industrial boiler and steam system applications.

What certifications are available for the SC20 Food+?

Spirax Sarco can supply EN 10204 3.1 material certificates (chargeable), plus free-of-charge declarations including EC 1935:2004 compliance, ISO 14644-1 Class 7 clean room conformity, TSE-BSE statement, and FDA 21 CFR compliance. Certifications must be requested at the time of ordering.

Is the internal finish of the coil polished for hygienic applications?

No. The SC20 is not internally polished and the internal surface finish of the coil is not specified. For applications requiring a defined internal surface roughness, consult PC Engineering for alternative solutions.

SPIRAX SARCO · SAMPLE COOLERS

Spirax Sarco SC20 Food+ and SCS20 Sample Coolers – Stainless Steel Boiler Water & Steam Sample Coolers

Name: Spirax Sarco SC20 Food+ and SCS20 Sample Coolers – Stainless Steel Boiler Water & Steam Sample Coolers
Brand: Spirax Sarco

Spirax Sarco SC20 Food+ sample cooler for boiler water & steam sampling. 316L SS, food-contact compliant, counter-current design. Buy from PC Engineering

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Overview

The Spirax Sarco SC20 Food+ and SCS20 sample coolers are designed for cooling samples of boiler water, steam, or condensate to safe handling temperatures. These units are essential for routine water quality testing in boiler houses and process plants, enabling accurate chemical analysis without risk of scalding.

The SC20 sample cooler features a 316L stainless steel coil through which the hot sample flows, enclosed within a 316L stainless steel body that carries cooling water. The counter-current flow arrangement maximises heat transfer efficiency, ensuring rapid cooling even at high sample flowrates. The self-draining coil design eliminates sample retention, preventing cross-contamination between tests.

The SC20 Food+ variant is certified for food-contact applications, complying with EC 1935:2004 and FDA 21 CFR regulations. This makes it suitable for food, beverage, and pharmaceutical plants where process steam or condensate comes into contact with products. The SCS20 kit version includes inlet valves and fittings for a complete ready-to-install sampling station.

Key Features

316L stainless steel construction – Body and coil resist corrosion from boiler water chemistry
Counter-current flow design – Maximises cooling efficiency with minimal water consumption
Self-draining coil – Prevents sample retention and cross-contamination
Food-contact compliant (SC20 Food+) – Meets EC 1935:2004 and FDA 21 CFR requirements
Integral mounting brackets – Pre-drilled for quick installation at point of use
Optional sanitary clamp adaptor – Connects to ½" ASME BPE compatible fittings
Multiple connection options – Available in BSP, NPT, and sanitary clamp versions
Complete kit available (SCS20) – Includes sample inlet valve, cooling water valve, and fittings

Specifications

Parameter	Value
Body & Coil Material	316L Stainless Steel (1.4404)
Coil Maximum Pressure	100 bar g @ 100 °C (1450 psi g @ 212 °F)
Body Maximum Pressure	10 bar g @ 100 °C (145 psi g @ 212 °F)
Body Maximum Temperature	100 °C @ 10 bar g (212 °F @ 145 psi g)
Cold Hydraulic Test Pressure	16 bar g (232 psi g)
Cooling Water Connections	½" BSP or ½" NPT
Sample Tube Connections	6 mm O/D (0.24")
Sanitary Connection (optional)	½" ASME BPE compatible clamp fitting
Compliance (SC20 Food+)	EC 1935:2004, EC 2023:2006 GMP, FDA 21 CFR
Available Certifications	EN 10204 3.1 material certificates, EC1935:2004 Declaration, ISO 14644-1 Class 7 Clean Room Declaration

Applications

The SC20 and SCS20 sample coolers are used across industries where boiler water or steam quality must be monitored:

- Power plants – Boiler water sampling for chemistry control - Refineries and petrochemical plants – Steam and condensate quality monitoring - Food and beverage manufacturing – Process steam sampling (SC20 Food+ for food-contact compliance) - Pharmaceutical production – Clean steam and WFI system sampling - Pulp and paper mills – Boiler and process water testing - Textile and chemical plants – Condensate return quality verification

Frequently Asked Questions

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Contact PC Engineering for pricing, availability, and technical support for the Spirax Sarco SC20 Food+ and SCS20 Sample Coolers. Call us or fill in our inquiry form — our engineers will respond within 24 hours.

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