LD75 series pilot piston solenoid valve
| Scope of application | Technical Specifications | ||
| Suitable for control systems such as heating devices, industrial furnaces, high-temperature soot blowing, drying equipment, steel plants, thermal power plants, textile printing and dyeing, chemical equipment, HVAC, printing equipment, pharmaceutical machinery, petrochemicals, electroplating and coating. | Medium temperature: C1: -10 ℃~60 ℃, C2: -20 ℃~90/200 ℃ | ||
| Work pressure: 0.3-16bar | |||
| Operation mode: Pilot piston type | |||
| Working type: normally closed, normally open, explosion-proof | |||
| Valve body material: cast steel WCB | |||
| Sealing material: PTFE, purple copper | |||
| Function Options | Electrical parameters | |||
| code name | Function Options | Functional Description | Coil parameters： | AC220V 380V 110V, DC24V 12V |
| NO | Normally closed type | Power on valve open, power off valve closed | Protection Rating: | IP54 (ordinary coil) IP65 (explosion-proof coil) H-class |
| K | Normally Open | Power on valve closed, power off valve open | Rated power: | DN20～32mm，30W/40W |
| E | Explosion-proof type | Explosion proof grade: ExdII BT4 | DN40～150mm， 30W, DN200～350mm，50w | |
| Specification parameter table (threaded connection) | |||||||
| Model | Interface G | Diameter mm | Cv value | L | H | Work pressure（bar) | |
| Normally closed | Normally Open | ||||||
| LD7520 | 3/4 | 20 | 5.4 | 92 | 148 | 0.3～16 | 0.3～10 |
| LD7525 | 1 | 25 | 8.5 | 110 | 148 | 0.3～16 | 0.3～10 |
| LD7532 | 11/4 | 32 | 14 | 120 | 182 | 0.3～16 | 0.3～10 |
| LD7540 | 11/2 | 40 | 18 | 140 | 182 | 0.3～16 | 0.3～10 |
| LD7550 | 2 | 50 | 28 | 162 | 192 | 0.3～16 | 0.3～10 |
| Specification parameter table (flange connection) | |||||||||
| Model | Diameter mm | Cv value | L | H | D | D1 | n-Φd | Work pressure（bar) | |
| Normally closed | Normally Open | ||||||||
| LD7520F | 20 | 5.4 | 150 | 180 | 105 | 75 | 4-Φ14 | 0.3～16 | 0.3-10 |
| LD7525F | 25 | 8.5 | 160 | 195 | 115 | 85 | 4-Φ14 | 0.3～16 | 0.3-10 |
| LD7532F | 32 | 14 | 180 | 205 | 140 | 100 | 4-Φ18 | 0.3～16 | 0.3-10 |
| LD7540F | 40 | 18 | 200 | 220 | 150 | 110 | 4-Φ18 | 0.3～16 | 0.3-10 |
| LD7550F | 50 | 28 | 230 | 235 | 165 | 125 | 4-Φ18 | 0.3～16 | 0.3-10 |
| LD7565F | 65 | 42 | 290 | 250 | 185 | 145 | 4-Φ18 | 1～16 | 1-10 |
| LD7580F | 80 | 65 | 310 | 260 | 200 | 160 | 8-Φ18 | 1～16 | 1-10 |
| LD75100F | 100 | 100 | 350 | 290 | 220 | 180 | 8-Φ18 | 1～16 | 1-10 |
| LD75125F | 125 | 180 | 400 | 365 | 250 | 210 | 8-Φ18 | 1～16 | 1-10 |
| LD75150F | 150 | 250 | 480 | 400 | 285 | 240 | 8-Φ22 | 1～16 | 1-10 |
| LD75200F | 200 | 420 | 600 | 456 | 340 | 295 | 12-Φ22 | 1.5～16 | 1.5-10 |
| LD75250F | 250 | 660 | 730 | 434 | 405 | 355 | 12-Φ26 | 1.5～16 | 1.5-10 |
| LD75300F | 300 | 890 | 850 | 490 | 460 | 410 | 12-Φ26 | 2～16 | 2-10 |
| LD75350F | 350 | 1060 | 2～16 | 2-10 | |||||
optimization suggestions
*The fluid contains impurities, and a filter screen (mesh ≥ 60) should be installed in front of the valve, and the fluid should not have any solidification or crystallization phenomenon.
*The direction of the valve body marking must be consistent with the flow direction of the medium
*The working pressure of coils providing special voltage may vary, please be sure to consult our factory first.
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.
