LD51 series zero pressure starting solenoid valve
Suitable for controlling media such as liquids, gases, and light oils (≤ 20CST), it adopts direct acting and two-step direct acting structures, zero pressure valve opening, high flow rate, and high reliability. The valve body material is brass (hot forged) and stainless steel SS304 (precision cast). This series has multiple types, and you can choose according to your control needs.
| Product Features | Technical Specifications | ||
| Suitable for controlling media such as liquids, gases, and light oils (≤ 20CST), it adopts direct acting and two-step direct acting structures, zero pressure valve opening, high flow rate, and high reliability. The valve body material is brass (hot forged) and stainless steel SS304 (precision cast). This series has multiple types, and you can choose according to your control needs. | Medium temperature: -5 ℃~+80 ℃, -5 ℃~130 ℃ | ||
| Work pressure: 0-10 bar | |||
| Operation mode: Direct acting, step-by-step direct acting (DN25-DN50) | |||
| Working type: normally closed, normally open | |||
| Valve body material: brass SS304、SS316 | |||
| Sealing material: Nitrile rubber (NBR conventional type) | |||
| Function Options | Electrical parameters | |||
| code name | Function Options | Functional Description | Coil parameters: | AC220V, 380V, 110V, 24V, DC24V, 12V |
| NO | Normally closed type | Power on valve open, power off valve closed | Sealed coil: | IP65 F-class standard junction box |
| K | Normally Open | Power on valve closed, power off valve open | Iron shell coil: | IP54 F level can be used for other voltage coils |
| E | Explosion-proof type | Explosion proof grade: ExDII BT4 | Plastic sealed coil: | DN10～25mm AC 26VA DC 18W |
| T | Timer | Can set the opening and closing gap time | DN32～50mm AC 40VA DC 30W | |
| N | Plastic sealed coil | IP65， Waterproof function | Iron shell coil: | DN10～25mm AC 26VA DC 18W |
| J | Energy saving module | Reduce coil temperature rise and power consumption | DN32～50mm AC 40VA DC 30W | |
optional
*Sealing material: Fluororubber VITON-10 ℃~130 ℃, EPDM rubber EPDM-10 ℃~110 ℃
*Terminal box with LED indicator light * Iron shell coil (regular type), plastic sealed coil * Threaded interface: NPT thread, RC thread
*Time timed controller
| Specification parameter table (threaded connection) | |||||||
| Model | Interface G | Diameter mm | Cv value | L | H/normally open type/ | Work pressurebar) | |
| Normally closed type | Normally Open | ||||||
| LD512.5 | 1/8 | 2.5 | 0.25 | 40.5 | 75/–/– | 0～10 | 0～6 |
| LD512.5 | 1/4 | 2.5 | 0.25 | 40.5 | 75/–/– | 0～10 | 0～6 |
| LD5104 | 1/4 | 4 | 0.6 | 54 | 75/–/– | 0～10 | 0～6 |
| LD5104 | 3/8 | 4 | 0.6 | 54 | 90/–/– | 0～10 | 0～6 |
| LD5110 | 3/8 | 10 | 4.8 | 68 | 117/–/– | 0-10 | 0～6 |
| LD5115 | 1/2 | 15 | 4.8 | 68 | 117/135/125 | 0～10 | 0～6 |
| LD5120 | 3/4 | 20 | 7.6 | 73 | 123/142/135 | 0～10 | 0～6 |
| LD5125 | 1 | 25 | 12 | 99 | 135/150/150 | 0～10 | 0～6 |
| LD5132 | 11/4 | 32 | 24 | 110 | 154/190/190 | 0～10 | 0～6 |
| LD5140 | 11/2 | 40 | 29 | 120 | 162/190/190 | 0～10 | 0～6 |
| LD5150 | 2 | 50 | 48 | 154 | 185/215/202 | 0-10 | 0～6 |
| Specification parameter table (flange connection) | ||||||||||
| Model | Interface G | Cv value | L | H/normally open type/ Explosion-proof type |
D | D1 | b | n-d | Work pressure(bar) | |
| Normally closed type | Normally Open | |||||||||
| LD5115F | 15 | 4.8 | 106 | 141 | — | — | — | — | 0-10 | 0-6 |
| LD5120F | 20 | 7.6 | 106 | 143 | — | — | — | — | 0-10 | 0-6 |
| LD5125F | 25 | 12 | 135 | 166/180/180 | 110 | 85 | 14 | 4-Φ14 | 0-10 | 0-6 |
| LD5132F | 32 | 24 | 142 | 204/235/285 | 135 | 100 | 15 | 4-Φ18 | 0-10 | 0-6 |
| LD5140F | 40 | 29 | 149 | 217/240/285 | 145 | 110 | 15 | 4-Φ18 | 0-10 | 0-6 |
| LD5150F | 50 | 48 | 184 | 227/255/300 | 160 | 125 | 16 | 4-Φ18 | 0-10 | 0-6 |
optimization suggestions
*When designing control schemes, try to choose normally closed (NC) type. If the solenoid valve has a longer opening time and a shorter closing time, choose normally open (NO) type.
*The fluid contains impurities, and a filter screen (with a mesh size of ≥ 60) should be installed in front of the valve.
*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.
