Pipe Freeze Protection Solutions
Reliable, self-acting valves for critical water lines.
The FP15-35 is a self-acting, thermostatic valve designed specifically for the freeze protection of water supply lines. Unlike electrically powered solutions, this valve operates autonomously using advanced thermosensitive materials. As ambient temperatures drop, the valve automatically opens to initiate a “drip-freeze protection” mechanism. It dynamically adjusts the drainage flow rate based on water temperature—increasing flow as temperatures plummet to balance heat loss, and closing automatically as temperatures rise. This ensures minimal water discharge while maintaining system integrity in sub-zero conditions.
Key Specifications:
- Model: FP15-35
- Connection: DN15 (1/2″)
- Body Material: Brass (Corrosion resistant)
- Operating Range: 1°C to 4°C (Actuation), up to 95°C (Max Temp)
- Feature: Zero power consumption, maintenance-free operation.
Target Systems & Industries
The FP15-35 is engineered for critical water lines where freezing poses a risk of burst pipes and system failure. It is ideal for the following scenarios:
- Building Water Inlets: Installed on water lines entering buildings (pre-entry point) or at the end of pipelines where “dead water” is likely to form.
- Industrial Process Piping: Protects specific branch circuits in industrial facilities that are exposed to cold environments.
- Solar Water Heating Systems: Commonly used in the inlet/outlet piping of solar water heaters where electric heat tracing might be complex to install.
- Remote or Off-grid Sites: Perfect for locations where electrical power is unavailable or unreliable, as it requires no external power source.
Installation Principle: For optimal performance, the valve must be installed vertically downward at the point where the system experiences the lowest temperature (typically the end of the line or exposed sections).
Why Choose the FP15-35 Solution?
Eliminate the risks and costs associated with traditional freeze protection methods:
- Zero Energy Consumption: Unlike electric heat tracing systems, this valve operates purely on thermal physics, resulting in 100% energy savings and zero carbon footprint.
- Intelligent “Drip Protection”: It automatically balances heat loss by adjusting flow. When temperatures are slightly below freezing, it uses minimal flow; only increasing drainage when absolutely necessary, making it a green and water-efficient solution.
- Fully Automated & Reliable: Say goodbye to manual intervention. There is no need for personnel to monitor temperatures or adjust valves manually, reducing labor costs and human error.
- Cost-Effective Maintenance: Compared to the high installation and running costs of steam or electric tracing, this mechanical solution offers a one-time installation with virtually no operational costs.
- Fail-Safe Design: Constructed from high-quality brass, it ensures durability and resistance to harsh weather conditions.
Technical Specs
| Feature | FP15-35 (Freeze Protection) |
|---|---|
| Operation Type | Normally Closed |
| Actuation Method | Self-Acting Thermosensitive Element |
| Power Source | Self-Powered (Mechanical) |
| Body Material | Brass |
| Port Size | DN15 (1/2″) |
| Set Temperature | 1°C – 4°C (Open/Close Range) |
| Max Operating Temp | 95°C |
| Max Operating Pressure | 1.0 MPa |
| Flow Coefficient (Cv) | 0.6 |
| Dimensions | φ25 * 63 mm |
Protect your water system with precision temperature control.
Download detailed datasheets, installation manuals, and CAD drawings for the FP Series. Contact our engineering team for custom system selection services.