Low-Temperature Resistant Intrinsically-Saf Widely-Compatible Precise Control Direct-Acting Solenoid Valve
Product Details
| Customization: | Available |
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| Media: | Water, Air, Oil, Light Chemicals |
| Temperature: | Ordinary Temperature |
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Basic Info.
- Model NO.
- DS01
- Actuator
- Electric
- Connection Form
- Threaded, Flange
- Type
- Pilot Operated
- Material
- Brass, 304 Stainless Steel, PTFE
- Pressure
- Ordinary Temperature
- Valve Structure
- Pilot Piston Structure
- Power Supply
- AC Solenoid Valve
- Usage
- Safety, Emptying, Drain, Temperature Control, Flow Control
- Standard
- DIN
- Application
- Industrial Usage, Water Industrial Usage
- Voltage
- 12VDC, 24VDC, 220VAC
- Color
- Customizable
- Special Features
- Explosion-Proof, Miniature
- Seal Material
- NBR, EPDM, PTFE, Viton®
- Coil Power
- AC: 8-25 Vadc: 5-15 W
- Media Compatibility
- Water, Air, Oil, Light Chemicals
- Transport Package
- Cardboard Box/Wooden Box
- Specification
- DN15-DN500
- Trademark
- Kunhui
- Origin
- Nanjing, Jiangsu Province
Packaging & Delivery
- Package Size
- 80.00cm * 60.00cm * 25.00cm
- Package Gross Weight
- 2.000kg
Product Description
Product Description
Cryogneic Solenoid Valve


Product Introduction:
A solenoid valve is a basic automated component that uses the magnetic force generated by an electromagnetic coil to control the on/off state and flow direction of fluids (such as liquids and gases). It is an important actuator in industrial control, which precisely controls the opening and closing of the valve through circuit signals to adjust parameters such as direction, flow rate, and speed. It is widely used in machinery, HVAC, automotive, medical and other fields, and has the advantages of fast response, high precision and remote control. The main types are direct-acting, pilot-operated and pilot-operated snap-action, and normally open (NO) or normally closed (NC) functions can be customized.
Product features:
The main features of solenoid valves are: precise control, fast response, compact size, simple system, energy saving and environmental protection, and good sealing performance. They can realize the automatic switching, direction and flow control of fluids (gas and liquid) and are suitable for various automation systems. However, they usually have limited accuracy and are not suitable for media containing particles or viscous media.

Product advantages:
The advantages of solenoid valves lie in their rapid response, precise control, automation integration capabilities, energy efficiency, and safety and reliability. They can realize remote and intelligent switching and flow/direction/pressure regulation of fluids (liquid/gas), and are widely used in industrial automated production lines, automobile manufacturing, pharmaceuticals and other fields, improving efficiency and product quality.
Product Applications:
Solenoid valves are widely used in industrial automation, controlling the flow of liquids (water, oil) and gases (air, natural gas) through electromagnetic force. Core application areas include HVAC (refrigerant/water flow regulation), automotive (painting, braking systems, engine control), water treatment/irrigation (flow control/chemical addition), food and beverage/pharmaceutical (hygienic filling, CIP cleaning), petrochemical (hazardous fluid management/safety shutdown), and packaging/manufacturing (pneumatic tools/process water control). They are actuators that enable precise, automated fluid control, improving efficiency, accuracy, and safety.
Parameter | Description | 2/2 Way Direct-Acting (DA Series) | 3/2 Way Pilot-Operated (PO Series) | 4/2 Way Servo-Operated (SO Series) |
Model | KHS | DA-08, DA-15, DA-20 | PO-15, PO-25, PO-40 | SO-20, SO-32, SO-50 |
Size Range | Nominal Diameter (DN/Inch) | DN1 (1/32″) – DN25 (1″) | DN15 (½″) – DN50 (2″) | DN20 (¾″) – DN80 (3″) |
Pressure Rating | Operating Pressure Range | 0–1.6 MPa (0–232 PSI) | 0.1–10 MPa (14.5–1450 PSI) | 0.2–16 MPa (29–2320 PSI) |
Body Material | Valve Body | Brass, 304 Stainless Steel, PTFE | WCB Carbon Steel, 316 Stainless Steel, Hastelloy | 316L Stainless Steel, Alloy Steel, Titanium |
Seal Material | Sealing Component | NBR, EPDM, PTFE, Viton® | PTFE, Viton®, FFKM (Perfluoroelastomer) | Viton®, FFKM, Metal-to-Metal |
Coil Voltage | Power Supply | AC110V/220V/380V 50/60HzDC12V24V/48V | AC110V/220V 50/60HzDC24V48V | AC220V/380V 50/60HzDC24V/110V |
Coil Power | Rated Power Consumption | AC: 8–25 VADC: 5–15 W | AC: 15–40 VADC: 10–25 W | AC: 30–60 VADC: 20–40 W |
Response Time | Open/Close Speed | ≤5ms (DC), ≤10ms (AC) | ≤15ms (DC), ≤25ms (AC) | ≤20ms (DC), ≤30ms (AC) |
Media Compatibility | Suitable Media | Water, Air, Oil, Light Chemicals | Water, Steam, Gas, Hydraulic Oil, Corrosive Liquids | High-Pressure Water, Steam, Industrial Gases, Slurry |
Media Temperature | Operating Temp Range | -20°C to 120°C | -40°C to 200°C | -50°C to 350°C |
Ambient Temperature | Working Environment Temp | -10°C to 55°C | -20°C to 60°C | -30°C to 70°C |
Connection Type | End Connection | Threaded (BSP/NPT), Barbed | Threaded (BSP/NPT), Flanged | Flanged (RF), Welded (BW), Threaded |
Protection Class | IP Rating | IP65 | IP65/67 | IP67/68 |
Leakage Class | Sealing Performance | Zero Leakage (ANSI Class VI) | Zero Leakage (ANSI Class VI) | Minimal Leakage (ANSI Class IV for Metal Seal) |
Operation Cycles | Service Life | ≥10,000,000 Cycles | ≥5,000,000 Cycles | ≥3,000,000 Cycles |
Standards Compliance | Design & Testing | ISO 9001, CE, RoHS | API 598, ISO 15848-1, CE | API 6D, ISO 15848-1, ATEX |
Accessories | Optional Components | Manual Override, Coil Guard, LED Indicator | Solenoid Coil with Surge Protection, Position Switch | Flow Control Valve, Pressure Gauge, Solenoid Coil Heater |
Explosion-Proof Parameter | Description | 2/2 Way Direct-Acting (DA-Ex Series) | 3/2 Way Pilot-Operated (PO-Ex Series) | 4/2 Way Servo-Operated (SO-Ex Series) |
Explosion-Proof Type | Protection Principle | Intrinsically Safe (Ex ia), Flameproof (Ex d) | Flameproof (Ex d), Increased Safety (Ex e) | Flameproof (Ex d), Intrinsically Safe (Ex ia) |
Explosion-Proof Grade | Hazardous Area Classification | Ex ia II CT4, Ex d II BT4 | Ex d II BT4/CT4, Ex e II CT4 | Ex d II CT6, Ex ia II CT6 |
Hazardous Area Rating | Applicable Zone | Zone 0/1/2 (Gas), Zone 21/22 (Dust) | Zone 1/2 (Gas), Zone 21/22 (Dust) | Zone 0/1/2 (Gas), Zone 20/21/22 (Dust) |
Temperature Class | Maximum Surface Temperature | T4 (≤135°C), T5 (≤100°C) Optional | T4 (≤135°C), T6 (≤85°C) Optional | T6 (≤85°C), T5 (≤100°C) |
Certification Standard | Authoritative Certification | ATEX 94/9/EC, IECEx, GB 3836 | ATEX 94/9/EC, IECEx, UL | ATEX 94/9/EC, IECEx, GB 3836, UL |
Coil Insulation Class | Insulation Level | Class F (155°C) | Class F (155°C), Class H (180°C) Optional | Class H (180°C) |
Explosion-Proof Enclosure Material | Enclosure Material for Coil/Valve Body | Aluminum Alloy, 304 Stainless Steel | 304/316 Stainless Steel, Cast Iron (Ex d) | 316L Stainless Steel, Alloy Steel |
Special Protection Measures | Additional Safety Design | Surge Suppressor, Anti-Static Coating | Pressure Relief Valve, Anti-Explosion Gasket | Double Sealing Structure, Overheat Protection |
Applicable Medium (Explosive) | Explosive Media Compatibility | Methane, Propane, Acetylene (Low Concentration) | Natural Gas, Diesel Vapor, Hydrogen (Medium Concentration) | Acetylene, Hydrogen, Ethylene (High Concentration) |
Main Products
Company Profile

Nanjing Kunhui Fluid Equipment Co., Ltd. was established in 2005, located at Building 3, No.98 Suyuan Avenue,Jiangning District, Nanjing,China. It is a professional company dedicated to the sales and technical services of valves and automatic control products. Since its establishment, the company has provided many customers with high-quality and cost-effective fluid control equipment and related technical services, winning wide acclaim and a good reputation in the industry.
The company has the following departments: Human Resources Department, Finance Department, Import Product Sales Department, Domestic Product Sales Department, Technical Service Department, Business and Logistics Department, etc. Through continuous exploration and operation, it has successively become an agent for well-known brands such as BURKERT (Germany), IMI Norgren, Rortork (UK), PRE-VENT (Germany), Taiwan KUHNWAY/QUEEN, Baoshuo, etc.

The company's main products include: solenoid valves, pneumatic angle seat valves, diaphragm valves, electric/pneumatic control valves, sensors, transmitters, electric/pneumatic ball valves, electric/pneumatic butterfly valves, etc. These products are mainly applied in fields such as petrochemical, electric power, shipbuilding, fire protection, environmental protection, metallurgy, light industry (beverage & food), pharmaceutical and medical equipment, bioengineering, natural gas, etc. Typical cooperative clients include CSSC Oasis, AVIC Industry, Baosteel Meishan Iron & Steel, Guodian Nari, Xuzhou Kerong Environment, etc.
Specialization, refinement, and high quality are the foundation and way of survival for Nanjing Kunhui Fluid Equipment Co., Ltd. The company's mission is to provide every customer with high-quality products and professional solutions. Adhering to the service principle of "Quality First, Customer Supreme; Truth-Seeking, Pragmatism, and Collaborative Development", the company has established long-term cooperative relationships with many enterprises. Warmly welcome friends from all walks of life to visit, inspect, and negotiate business. We look forward to creating brilliance with you hand in hand!
Why Choose us
1. All our workers own rich experience to ensure the export smoothly and make you feel sincere service before,
during and after the purchase.
2. Our factory can customize according to your requirements and report the production progress to you at any time.
3. High output, you can get the earliest goods.
4. The factory sells directly, removes the middleman and earns the difference, allowing you to get the best price.
5. We have the specialized after-sales service to solve the quality problems in time.
You are an agent, you will have a competitive price!!!
You are the end user, you will have superior quality!!!
Exhibition & Certificates


Partners & Collaboration Cases


Packaging & Shipping

(1) We typically use wooden crates to package valves.
(2) We will place foam or bubble wrap inside, and use paper packaging to protect the valves and fittings, ensuring their safety and integrity.
(3) We can package according to the customer's specific requirements.
(4) The customer's logo can be printed on the valve packaging.
FAQ
1. Q: Are you a manufacturer or a trading company?
A: We are a valve manufacturer and factory, not a trading company. We have 20 years of experience in valve manufacturing.
2. What are your payment terms?
A: T/T 30% as deposit, and 70% before delivery/receive copy of B/L. We will show you photos of the products and packaging before you pay the balance.
3. Q: What is your product range?
A: We can produce electric and pneumatic ball valves and butterfly valves, gate valves, control valves, solenoid valves, etc., all kinds of valves. We can assemble them into complete sets for export.According to ISO/ANSI/DIN/JIS/EN/GOST/AS standards.
4. Q: Does your factory have stock? How about your delivery time?
A: We have valves in normal sizes in stock. Delivery time depends on your quantity, generally 20-35 days.
5. Q: What certificates will you provide?
A: We can provide CE/ISO certification.
6. After-sales Service
A: 18-month warranty on all products. As an experienced manufacturer, you can rest assured about the quality and after-sales service.
7. Payment
A: T/T, D/P, D/A
8. Shipping
A: By DHL, UPS, EMS, FedEx, San Francisco, Air Freight, Sea Freight
9. Do you provide free samples?
A: Free samples are possible for us.
10. How do you establish a long-term and good relationship with our business?
A: 1. We maintain good quality and competitive prices to ensure our customers benefit.
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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