1. High Adjustment Precision:
Fine-tuning is achieved through multiple thread turns (typically 5-10 turns), with flow control error controlled within ±1%, far exceeding that of ordinary ball valves or gate valves.
2. Excellent Sealing Performance:
The metal hard seal structure has a leakage rate of less than 10⁻⁶ cc/sec (ISO 5208 standard), suitable for flammable and explosive media.
3. Compact and Lightweight Design:
Typical small-diameter design (DN6-DN25) weighs only 1/3 of a comparable gate valve, saving installation space.
4. Resistance to Extreme Conditions:
Some models can withstand temperature ranges from -200℃ to 550℃ (such as aerospace-grade needle valves), adapting to cryogenic or high-temperature steam environments.
5. Low Maintenance Costs:
Modular design allows for individual replacement of the valve core or seals, saving over 60% in maintenance costs compared to replacing the entire valve.