Mechanical Rotary Wing Cold Water Meter – Digital Display
Mechanical Rotary Wing Cold Water Meter – Digital Display
Mechanical Rotary Wing Cold Water Meter – Digital Pointer Display
Monitor your home or property's cold water consumption with precision using this Mechanical Rotary Wing Cold Water Meter (Model TS-S300E). Combining a classic rotary-wing impeller design with a dual digital-pointer counter display, this meter delivers accurate readings to 0.0001 m³ — making it ideal for residential plumbing, irrigation lines, and small commercial applications. Built from durable ABS and copper, it is engineered for long-term horizontal installation with minimal pressure loss.
Made in Mainland China.
Key Features
- Semi-Liquid Sealed Counter: The counter compartment is vacuum-treated and isolated from external air and water, preventing fogging and keeping the display crystal clear at all times.
- Enlarged Inner Cavity – Reduced Pressure Loss: Optimized water inlet and outlet channels in the impeller box minimize pressure drop while maintaining consistent measurement performance.
- Factory Lead Seal Included: Each meter leaves the factory with a lead seal after rigorous inspection — confirming product integrity and helping deter tampering.
- High-Precision Dual Display: Combined numeric and pointer readout, accurate to 0.0001, for easy at-a-glance readings at any scale.
- Full Copper Fittings: Anti-rust, all-copper joints come equipped with leak-proof sealing rings for a secure, drip-free connection.
- Semi-Liquid Dial Protection: The liquid seal keeps dirt, debris, and external magnetic interference out of the dial mechanism, protecting gear transmission and extending service life.
Specifications
| Model | TS-S300E |
| Material | ABS + Copper |
| Color | Blue |
| Dimensions | 11.5 × 7.5 × 8.5 cm / 4.53 × 2.95 × 3.35 in |
| Wing Structure | Rotary Wing |
| Pressure Rating | ≤1.0 MPa / 1.6 MPa |
| Installation | Horizontal |
| Display Type | Combined Digital + Pointer |
| Measurement Accuracy | 0.0001 m³ |
What's in the Box
- 1 × Mechanical Water Meter (TS-S300E)
- 2 × Sealing Rings
- 4 × Copper Fittings / Accessories
Installation Notes
This meter is designed for horizontal installation only. Ensure pipe threads are compatible before fitting. Tighten copper joints hand-snug, then apply one additional quarter-turn with a wrench using the included sealing rings to prevent leaks. The meter has been factory-tested with water — any residual water inside the unit is normal and does not affect accuracy or longevity.
Why the Counter Doesn't Start at Zero
Every unit undergoes flow-bench calibration testing at the factory before shipment. Because the reading cannot be electronically reset, the display will show a small non-zero value upon arrival — this is normal and confirms the meter has been properly tested. All units sold are brand-new; no secondary or refurbished products are offered.
For general guidance on residential water metering standards and conservation, visit the U.S. EPA WaterSense Program.
Frequently Asked Questions
Q: Why is there liquid visible inside the dial of my cold water meter?
A: This is completely normal. The TS-S300E uses a semi-liquid sealed counter design. A specially formulated compound liquid is sealed inside the dial to prevent dirt, debris, and external magnetic fields from interfering with the gear mechanism and counter readout. The sealed liquid will not leak out and is an intentional design feature that protects accuracy and extends the meter's service life.
Q: Does this mechanical water meter work with hot water supply lines?
A: No — the TS-S300E is specifically designed for cold water lines only. Installing it on hot water supply lines may damage internal components, void any applicable warranty, and produce inaccurate readings. Always verify your pipe's temperature rating before installation.
Q: What pipe size and pressure does this water meter support?
A: The meter is rated for operating pressures of ≤1.0 MPa or ≤1.6 MPa depending on configuration. It requires horizontal installation. For exact thread sizing and compatibility, compare the fitting dimensions (11.5 × 7.5 × 8.5 cm overall) and the included copper accessories against your existing pipe fittings before purchasing.
Q: Is water coming out of the meter body a defect?
A: Not at all. Each meter is flow-tested with water at the factory before shipment, so a small amount of residual water inside the meter body is expected. The liquid in the dial is sealed and will not flow out. Neither the body water nor the dial liquid affects the meter's performance or measurement accuracy.