The Spirax Sarco SRV66 is a 316L stainless steel sanitary pressure-reducing valve designed for pressure reduction of clean steam, water, and non-reactive gases. The valve features ASME BPE or ISO 2852 sanitary clamp connections, a maximum inlet operating pressure of 8 bar g, and support for in-line cleaning (CIP). It is suitable for sanitary media and process piping pressure-reduction service in equipment such as bioreactors, sterilizers, autoclaves, process vessels, and centrifuges.
SRV66 sanitary pressure reducing valve, 3/4 in angle product image | Spirax Sarco
1 / 1
SRV66 Sanitary Pressure-Reducing Valve | Spirax Sarco
Sanitary pressure-reducing valve for process pressure reduction of clean steam, water, and non-reactive gases, with support for in-line CIP cleaning.
-
Genuine product assurance
We can help verify product data and purchasing details.
-
Model confirmation
Confirm model, connection and key options before ordering.
-
After-sales support
After-sales communication support is provided according to the order agreement.
Specifications
- Connection type
- ASME BPE sanitary clamp / ISO 2852 sanitary clamp
- Nominal diameter
- DN15, DN20, DN25, DN32, DN40, DN50
- Maximum design pressure
- 9.5 bar g @ 50°C
- Maximum design temperature
- 300°C @ 5.8 bar g
- Minimum design temperature
- -10°C
- Maximum operating temperature
- 180°C
- Maximum inlet operating pressure
- 8 bar g
- Maximum cold hydraulic test pressure
- 15.2 bar g
- Valve body design pressure rating
- Inlet PN10
- Pressure setting range
- 0.3-1.1 bar g, 0.8-2.5 bar g, 1.0-5.0 bar g
- Valve tightness class
- Better than VD1/VDE 2174 (leakage rate < 0.5% Kv)
- Valve body material
- Stainless steel 1.4404 (316L)
- Diaphragm material
- FPM (Viton) / PTFE
- Wetted surface roughness
- Ra < 3.2 µm
- Clean-in-place (CIP)
- Supported
- Applicable media
- Steam, water, and non-reactive gases
Application scenarios
Sanitary pressure-reducing media supply to bioreactors
Used in clean steam, water, or non-reactive gas supply branches for bioreactors to regulate the pressure of the media entering the equipment. The SRV66 features sanitary clamp connections, a self-draining angle-body design, and clean-in-place capability, making it suitable for sanitary process piping.
Clean steam pressure-reducing supply to sterilizers and autoclaves
Used in the clean steam inlet piping of sterilizers or autoclaves to reduce the upstream steam pressure before supplying the equipment. The product is suitable for steam service, has a maximum operating temperature of 180°C, and features a self-draining design with sanitary connections.
Sanitary pressure-reducing gas supply to process vessels
Used in gas inlet branches for process vessels to regulate the pressure of the non-reactive gas supplied to the vessel. The product uses sanitary clamp connections, requires no external pressure sensing line, and is compatible with sanitary process piping interfaces.
Sanitary pressure-reducing steam or water supply to centrifuges
Used in clean process piping associated with centrifuges to regulate the pressure of the steam or water supplied to the equipment. The SRV66 is suitable for steam and water service, uses sanitary clamp connections, and supports clean-in-place operation for equipment supply piping in clean process areas.
Selection points
Sanitary surface finishing and polishing options
Standard wetted surfaces have a roughness of Ra < 3.2 µm and are ultrasonically cleaned. Optional finishes include Ra 0.8 µm mechanical polishing, Ra 0.8 µm electropolishing, and Ra 0.4 µm electropolishing.
High tightness class and low leakage rate
The valve tightness class is better than VD1/VDE 2174, with a leakage rate below 0.5% Kv.
Optional FDA-certified diaphragm material
An FDA-certified diaphragm material is available for sanitary process compliance requirements.
FAQ
What media and applications is the SRV66 suitable for?
The SRV66 is suitable for steam, water, and non-reactive gases. It can be used to supply clean steam, gases, and liquids to bioreactors, centrifuges, sterilizers, autoclaves, process vessels, and other clean equipment.
What nominal diameters and connection types are available for the SRV66?
The SRV66 is available in DN15, DN20, DN25, DN32, DN40, and DN50 sizes. Connection options include ASME BPE sanitary clamp and ISO 2852 sanitary clamp connections. DN32 is available only with an ISO 2852 clamp connection.
What are the pressure and temperature ranges of the SRV66?
The valve body inlet design rating is PN10. The maximum design pressure is 9.5 bar @ 50°C, the maximum design temperature is 300°C @ 5.8 barg, the maximum operating temperature is 180°C, and the minimum operating temperature is -10°C. Pressure setting ranges include 0.3 to 1.1 barg, 0.8 to 2.5 barg, and 1.0 to 5.0 barg. The specific configuration must be confirmed according to the actual model and application conditions.
What sealing and surface finishing configurations are available for the SRV66?
The standard product uses a stainless steel seal, and models with FEPM soft seals are also available. The standard wetted surface roughness is Ra < 3.2 µm, with ultrasonic cleaning. Optional configurations include Ra 0.8 µm mechanical polishing, Ra 0.8 µm or Ra 0.4 µm electropolishing, degreasing, and FDA-certified diaphragm materials.
What should be considered when installing and maintaining the SRV66?
During installation, ensure that the inlet is vertical and the spring chamber faces upward. The product requires no external pressure sensing line and provides clean-in-place capability. Replacement spare parts include the diaphragm and O-ring assembly. When ordering, specify the valve size, model, and pressure range.