The ZRQM series intelligent electric control valve is a pressure-balanced regulating valve designed for precise and stable flow control. It is equipped with the RQM series intelligent electric actuator, offering a compact, lightweight, and highly stable structure with an excellent protection rating. This makes it ideal for use in critical applications such as large thermal power plants, chemical processing facilities, water treatment systems, natural gas pipelines, oil fields, and steel manufacturing plants.
**Key Features:**
- Compact and lightweight design
- High stability and reliability
- Excellent environmental protection (IP68)
- Wide range of operating temperatures
- Advanced control capabilities
**Material for Key Components:**
- **Valve Body and Cover:** HT200, ZG230–450, ZG1Cr18Ni9Ti
- **Valve Plug and Seat:** 1Cr18Ni9Ti, Ti alloy surfacing
- **Valve Stem and Push Rod:** 2Cr13, 1Cr18Ni9Ti
- **Bushings:** 2Cr13
- **Packing:** PTFE, flexible graphite, stainless steel corrugated packing
**Important Technical Parameters – Electric Actuator:**
- **Output Thrust:** 44 ~ 550 kN
- **Adjustment Thrust:** 5.71 ~ 47.05 kN
- **Rated Closing Thrust:** 8.4 ~ 63.15 kN
- **Position Control Deviation:** Set travel time = 25 ± 1 seconds
- **Repeatability Deviation:** ≤ 1% (when travel time > 25 seconds)
- **Dead Zone:** Adjustable from 0.1% to 9.9%
- **Starting Frequency (Rated Load):** 1200 cycles/hour
- **Input Signals:** 4–20 mA / 100 Ω, 2–10 mA / 100 Ω, DC24V switching
- **Power Supply:** 380 ± 10% VAC, 50 Hz
- **Relative Humidity:** < 95%
- **Ambient Temperature:** -30°C ~ +70°C
- **Explosion Proof Rating:** Exd II BT4
- **Protection Level:** IP68
- **Isolation:** Photoelectric isolation on input and output channels
**Important Technical Parameters – Regulating Mechanism:**
| Nominal Diameter DN (mm) | 20 (10) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
|--------------------------|---------|----|----|----|----|----|----|-----|-----|-----|-----|-----|-----|
| Spool Diameter dn | (10) | (12)| (15)| (20)| | | | | | | | | |
| Rated Flow Coefficient Kv (Linear) | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 |
| Rated Flow Coefficient Kv (Equal Percentage) | 1.6 | 2.5 | 4.0 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 |
| Rated Stroke L (mm) | 10 | 16 | 25 | 40 | 60 | 100 | | | | | | | |
| Inherent Flow Characteristics | Linear, Equal Percentage | | | | | | | | | | | | |
| Intrinsic Adjustable Ratio R | 50:1 | | | | | | | | | | | | |
| Leakage Class | Hard Seat: IV Grade, Soft Seat: VI Grade | | | | | | | | | | | | |
| Nominal Pressure PN (MPa) | 1.6, 4.0, 6.4 | | | | | | | | | | | | |
| Working Temperature t (°C) | -20~200, -40~250, -60~250 | -40~450, -60~450 | 450~560 | -60~-100, -100~-200, -200~-250 | | | | | | | | | |
**Applications:**
The ZRQM series is widely used in active regulation systems across various industries due to its high precision, durability, and adaptability to different environments.
**Images:**
[Image of ZRQM Series Intelligent Pressure Balance Electric Control Valve](http://i.bosscdn.com/uploads/84/08/87/f4c26888902b4bb2aca589f389.jpg)
[Image of ZRQM Series Intelligent Pressure Balance Electric Control Valve](http://i.bosscdn.com/uploads/91/ca/09/fd4fe87ecedcbf30ad7954023b.jpg)
This product is suitable for demanding industrial environments where accurate and reliable control is essential. Its advanced design ensures long service life and minimal maintenance, making it a cost-effective solution for modern control systems.
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