Life-Safety Temperature Control for Emergency Showers & Eyewash Stations: Freeze Prevention and Scald Protection
Ensure ANSI/ISEA Z358.1 Compliance Year-Round. Protect critical safety equipment from freezing bursts in winter and scalding injuries in summer with self-actuating, fail-safe thermal valves.
The Critical Safety Challenge
Emergency showers and eyewash stations are the last line of defense in hazardous environments. However, their effectiveness is threatened by extreme temperatures.
- Winter Risk (Freezing): Standing water in pipes can freeze, blocking flow or bursting pipes, rendering the station useless during an emergency. Electric heat tracing is expensive to install, maintain, and prone to failure.
- Summer/Hot Climate Risk (Scalding): Water sitting in pipes exposed to sun or industrial heat can reach dangerous temperatures (>40°C/104°F). Activating a shower with scalding water can cause severe secondary burns to a victim already in distress.
Our Solution:
We provide specialized, purely mechanical thermal valves designed specifically for the unique flow requirements of emergency equipment:
- FP68 Series: Automatically drains pipes when temperatures approach freezing, preventing ice formation without electricity.
- SP68 Series: Automatically mixes in cold water or shuts off hot flow when temperatures rise, ensuring tepid, safe water delivery.
No power required. Fail-safe operation. Essential for OSHA and ANSI compliance.
Product Portfolio
1. Freeze Protection Valve: The Winter Guardian
- Model: FP68 Series (e.g., FP68-35)
- Product Definition:
A self-draining valve designed for outdoor or unheated indoor emergency stations. When the ambient or water temperature drops to a critical threshold (typically 1°C / 34°F), the valve opens to drain stagnant water from the piping network, preventing ice blockage and pipe bursts. It closes automatically when temperatures rise. - Key Features:
- Low-Temperature Activation: Precise opening at ~1°C ensures drainage before ice forms.
- High Flow Capacity: Designed to handle the specific pipe diameters and flow rates of emergency shower risers.
- Weather-Resistant Housing: Built to withstand harsh outdoor industrial environments (rain, snow, UV).
- Zero Energy Cost: Eliminates the need for electric heat tracing cables and their associated monitoring systems.
- Ideal Applications:
- Outdoor chemical storage areas.
- Unheated warehouses or loading docks.
- Remote pipeline stations in cold climates.
2. Scald Protection Valve: The Summer Shield
- Model: SP68 Series
- Product Definition:
A thermostatic mixing/shut-off valve dedicated to emergency equipment. If the water temperature in the supply line exceeds the safe “tepid” limit (typically 38°C – 40°C / 100°F – 104°F), the valve instantly reacts to blend in cold water or restrict hot flow, ensuring the discharge remains within the ANSI safe zone. - Key Features:
- Rapid Response: Reacts within seconds to temperature spikes caused by solar heating or industrial proximity.
- Tepid Water Assurance: Maintains output strictly within the 16°C–38°C (60°F–100°F) range required by safety standards.
- Fail-Safe Design: In the event of a thermal element failure, the valve defaults to a safe position (usually shutting off hot water) to prevent injury.
- Robust Construction: Heavy-duty brass/bronze body suitable for high-demand safety fixtures.
- Ideal Applications:
- Stations located in direct sunlight or hot climates.
- Facilities near furnaces, boilers, or steam lines.
- Indoor areas where hot water lines run parallel to emergency supplies.
Industry Applications & Compliance
| Industry Sector | Typical Scenario | Recommended Solution | Safety Benefit |
|---|---|---|---|
| Chemical Processing | Outdoor acid/caustic storage tanks exposed to winter snow. | FP68 Series | Prevents pipe bursts ensuring water is available during a chemical splash incident in winter. |
| Oil & Gas Refineries | Pipelines running near high-heat furnaces or in desert climates. | SP68 Series | Prevents scalding injuries when a worker needs to wash off hydrocarbons in hot weather. |
| Pharmaceutical & Biotech | Cleanrooms with strict temperature controls; outdoor loading bays. | FP68 + SP68 Combo | Comprehensive year-round protection for both freezing winters and overheated summer pipes. |
| Metal Fabrication | Foundries with extreme ambient heat; unheated storage yards. | SP68 (Anti-scald) / FP68 (Anti-freeze) | Ensures tepid water availability regardless of seasonal extremes. |
| Mining & Resources | Remote sites with no reliable electricity for heat tracing. | FP68 Series | Provides reliable freeze protection without relying on fragile electrical infrastructure. |
Compliance Note:
Our valves assist facilities in meeting ANSI/ISEA Z358.1 requirements for “tepid water” (Section 5.5) and ensuring equipment is “protected from freezing” (Section 5.4), reducing liability and ensuring worker safety.
Why Choose Our Emergency Safety Valves?
- Purely Mechanical Reliability:
- No electricity, sensors, or controllers to fail. In an emergency, mechanical simplicity equals maximum reliability.
- Cost Efficiency:
- FP68: Eliminates the high CAPEX and OPEX of electric heat tracing systems (installation, energy bills, maintenance checks).
- SP68: Reduces liability risks and potential workers’ compensation claims related to scalding.
- Specialized for Emergency Flow:
- Unlike standard plumbing valves, the FP68 and SP68 series are engineered for the high-flow, low-frequency usage patterns of emergency showers and eyewashes.
- Easy Retrofit & Integration:
- Compact design allows for easy installation into existing emergency station piping during upgrades or new construction.
- Global Standard Alignment:
- Designed to support compliance with major international safety standards (ANSI, EN, OSHA).
Technical Specifications Comparison
| Feature | FP68 Series (Freeze Protection) | SP68 Series (Scald Protection) |
|---|---|---|
| Primary Function | Drain pipes to prevent freezing | Drain pipes to prevent scalding |
| Activation Trigger(Open Temp.) | 1°C / 35°F | 35°C / 95°F，38°C / 100°F，41°C / 105°F |
| Close Temp. | 4°C / 39°F | 29°C / 84°F，32°C / 89°F，35°C / 95°F |
| Action Mode | Opens to drain | Opens to drain |
| Power Source | Self-acting (Thermal Wax Element) | Self-acting (Thermal Wax Element) |
| Material | SS316 | SS316 |
| Maintenance | Mandatory testing is required: prior to commissioning, before the start of winter or summer seasons, and at regular intervals. | Mandatory testing is required: prior to commissioning, before the start of winter or summer seasons, and at regular intervals. |
| Critical Standard | ANSI Z358.1 (Freeze Protection) | ANSI Z358.1 (Tepid Water) |
| Installation Location | Lowest point of riser/drain loop | Mixing point before shower head |
| Port Size | 1/2″ Female | 1/2″ Female |
| Flow Rate(Cv) | 0.6 | 0.6 |
Ensure your emergency showers work when needed most.
Download technical specs for the FP68 and SP68 series and request a compliance consultation.