The Spirax Sarco BPC32F/BPC32YF series comprises pressure-balanced thermostatic steam traps with carbon steel bodies and integral flanged connections, rated for a maximum operating pressure of 32 bar g. Different subcooling capsules are available. The BPC32YF is equipped with a Y-type high-capacity strainer, while CV models incorporate a check valve for condensate drainage branches in steam tracing applications, systems containing debris, or installations with a risk of condensate backflow.
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Spirax Sarco BPC32F/BPC32YF Pressure-Balanced Thermostatic Steam Trap
Pressure-balanced thermostatic steam trap for steam condensate discharge, fitted with a Y-type strainer.
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Models
The BPC32 series consists of pressure-balanced thermostatic steam traps with integral flanged connections. The main differences are the strainer configuration and whether an integrated check valve is included. BPC32F and BPC32FCV use flat stainless steel strainers for standard filtration requirements; BPC32YF and BPC32YFCV use Y-type cylindrical high-capacity strainers for services with higher contamination levels or larger filtration capacity requirements. BPC32FCV and BPC32YFCV models with CV include an integrated check valve and are suitable for systems with condensate backflow or siphoning risks; non-CV models are suitable where such risks are absent. All four models are supplied with STD capsules as standard. Final selection should also be confirmed based on pressure, temperature, size, flange standard, and required capsule subcooling.
BPC32FIntegral Flanged Flat-Strainer Pressure-Balanced Thermostatic Steam Trap
BPC32F features an integral flanged connection, a flat stainless steel strainer, and an STD standard capsule, without an integrated check valve. This model is suitable for condensate drainage in industrial steam systems. Connection sizes include DN15, DN20, and DN25. The maximum allowable pressure is 50 bar g @ 50°C, the maximum allowable temperature is 400°C @ 35 bar g, and the maximum operating pressure is 32 bar g @ 287°C.
BPC32YFIntegral Flanged Y-Type High-Capacity Strainer Pressure-Balanced Thermostatic Steam Trap
BPC32YF features an integral flanged connection, a Y-type cylindrical high-capacity stainless steel strainer, and an STD standard capsule, without an integrated check valve. This model is suitable for condensate drainage in industrial steam systems and for applications requiring greater filtration capacity. Connection sizes include DN15, DN20, and DN25. The maximum allowable pressure is 50 bar g @ 50°C, the maximum allowable temperature is 400°C @ 35 bar g, and the maximum operating pressure is 32 bar g @ 287°C.
BPC32FCVIntegral Flanged Flat-Strainer Pressure-Balanced Thermostatic Steam Trap with Check Valve
BPC32FCV features an integral flanged connection, a flat stainless steel strainer, an integrated check valve, and an STD standard capsule. This model is suitable for condensate drainage in industrial steam systems and for applications requiring reduced risk of condensate backflow or siphoning. Connection sizes include DN15, DN20, and DN25. The maximum allowable pressure is 50 bar g @ 50°C, the maximum allowable temperature is 400°C @ 35 bar g, and the maximum operating pressure is 32 bar g @ 287°C.
BPC32YFCVIntegral Flanged Y-Type High-Capacity Strainer Pressure-Balanced Thermostatic Steam Trap with Check Valve
BPC32YFCV features an integral flanged connection, a Y-type cylindrical high-capacity stainless steel strainer, an integrated check valve, and an STD standard capsule. This model is suitable for condensate drainage in industrial steam systems and for applications requiring both greater filtration capacity and reduced risk of condensate backflow or siphoning. Connection sizes include DN15, DN20, and DN25. The maximum allowable pressure is 50 bar g @ 50°C, the maximum allowable temperature is 400°C @ 35 bar g, and the maximum operating pressure is 32 bar g @ 287°C.
Specifications
- Body Material
- Carbon steel (DIN 1.0619+NASTM A216 WCB)
- Seat Material
- Stainless steel (BS 970 431 S29)
- Strainer Material
- Stainless steel (AISI 304)
- Capsule Material
- Stainless steel
- Maximum Allowable Pressure
- 50 bar g @ 50°C
- Maximum Allowable Temperature
- 400°C @ 35 bar g
- Minimum Allowable Temperature
- -60°C
- Maximum Operating Pressure
- 32 bar g @ 287°C
- Minimum Operating Temperature
- 0°C
- Maximum Cold Hydraulic Test Pressure
- 75 bar g
- Connection Type
- Integral flanged connection
- Flange Standards
- EN 1092 PN40, ASME B 16.5 Class 150, ASME B 16.5 Class 300
- Connection Sizes
- DN15, DN20, DN25
- Integrated Strainer Type
- BPC32F: Flat stainless steel screen; BPC32YF: Y-type cylindrical high-capacity screen
- Integrated Check Valve
- Standard on BPC32FCV and BPC32YFCV
- Capsule Subcooling
- STD: 12°C below saturation temperature; NTS: 6°C below saturation temperature; SUB: 24°C below saturation temperature
- Design Standards
- AD-Merkblatt WO/TRD100, European Pressure Equipment Directive 97/23/EC
- Material Certificate
- EN 10204 3.1
Application scenarios
Condensate drainage from steam tracing lines
For condensate removal from steam tracing circuits such as process piping. This series comprises pressure-balanced thermostatic steam traps, configurable according to capsule subcooling, with a carbon steel body and integral flanged connections.
Steam drainage points with a high risk of contaminants
For steam drainage locations that may contain particulate contaminants. BPC32YF is fitted with a Y-type cylindrical high-capacity stainless steel strainer, while BPC32F is fitted with a flat stainless steel strainer; BPC32YF supports online flushing through the blowdown plug.
Drainage branches with a risk of condensate backflow
For steam system drainage branches where condensate backflow or siphoning may occur. BPC32FCV and BPC32YFCV are fitted with integral check valves to provide backflow prevention at condensate drainage points with integral flanged connections.
Outdoor steam networks and tracing circuits in low ambient temperatures
For condensate drainage points in outdoor steam networks or tracing circuits that may be exposed to low ambient temperatures. The minimum permissible product temperature is -60°C.
Selection points
Three Capsule Subcooling Options
The product can be configured with STD, NTS, or SUB capsules, with discharge temperatures 12°C, 6°C, and 24°C below saturated steam temperature, respectively. Select according to the required condensate discharge subcooling.
Two Integrated Strainer Configurations
BPC32F uses a flat stainless steel strainer, while BPC32YF uses a Y-type cylindrical high-capacity stainless steel strainer. Select according to specific filtration configuration requirements.
Optional Integrated Check Valve
BPC32FCV and BPC32YFCV models include an integrated check valve, while the base BPC32F and BPC32YF models do not. Select according to whether condensate backflow prevention is required.
Multi-Standard Integral Flanged Connection
The product uses an integral flanged connection and supports EN 1092 PN40, ASME B 16.5 Class 150, and Class 300 flange standards. Connection sizes include DN15, DN20, and DN25.
Carbon Steel Body and High-Pressure, High-Temperature Rating
The body is made of carbon steel, with a maximum allowable pressure of 50 bar g @ 50°C and a maximum allowable temperature of 400°C @ 35 bar g, suitable for steam service within the corresponding pressure and temperature ranges.
Installation & maintenance notes
Condensate Backflow Protection and Check Valve Configuration
BPC32F and BPC32YF do not include an integrated check valve, while BPC32FCV and BPC32YFCV are supplied with an integrated check valve as standard. Where the discharge line presents a risk of condensate backflow or siphoning, verify the model and provide appropriate check measures according to site requirements.
FAQ
What is the operating principle of BPC32F and BPC32YF?
These are maintainable balanced pressure thermostatic steam traps that open and close in response to temperature changes in the capsule. The capsule type determines the discharge temperature: STD discharges at 12°C below saturated steam temperature, NTS at 6°C, and SUB at 24°C. The capsule type must be specified when ordering.
What is the difference between BPC32F and BPC32YF for product selection?
BPC32F incorporates a flat stainless steel strainer, while BPC32YF incorporates a Y-type cylindrical high-capacity strainer with a blowdown plug for online flushing. BPC32YF is better suited to applications with higher filtration capacity and online cleaning requirements, while BPC32F is suitable for piping with standard flanged configurations.
How do BPC32FCV and BPC32YFCV differ from the base models?
Both BPC32FCV and BPC32YFCV incorporate an integral stainless steel check valve within the integrally flanged design, for applications with a risk of system siphonage or where backflow prevention is required. BPC32FCV is fitted with a flat strainer, while BPC32YFCV is fitted with a Y-type cylindrical high-capacity strainer, representing the highest specification in the series.
Which sizes and flange standards are available for this steam trap series?
Available in DN15, DN20 and DN25 with integrally flanged connections in accordance with EN 1092 PN40, ASME B16.5 Class 150 or Class 300. For other specific connection requirements, the configuration must be confirmed according to the actual model and application conditions.
What should be considered during installation and maintenance?
Before installation, confirm that the size, connection standard and capsule type match the system requirements, and select the integral check valve option as required by the operating conditions. The maintainable design allows servicing during maintenance. When ordering spare parts, specify the steam trap model, size and capsule type.
Documents
BPC32F and BPC32YF Integrally Flanged Balanced Pressure Thermostatic Steam TrapsDatasheet · ChineseBPC32F and BPC32YF Carbon Steel Integrally Flanged Balanced Pressure Thermostatic Steam TrapsDatasheet · EnglishBPC32, BPC32Y, BPC32F, BPC32YF, BPC32CV, BPC32CVF, BPC32YCV and BPCYCVF Carbon Steel Balanced Pressure Thermostatic Steam Traps Installation and Maintenance InstructionsManual · English