Waterproof Underwater Fountain Solenoid Valve
We Mainly do Pneumatic Cylinder, solenoid valve, pneumatic valve, air treatment units, quick connection fittings and PU tube . Our 4V. 3V.2V.2p .solenoid valve ,and 4A.3A Pneumatic valve sell so hot in Asia, Europe,and Middle East. We are popular in pneumatic and Hydraulic market. Our accessories taked from the same supplier as Airtac.
Waterproof Underwater Fountain Solenoid Valve
Basic Info:
We Mainly do Pneumatic Cylinder, solenoid valve, pneumatic valve, air treatment units, quick connection fittings and PU tube .
Our 4V. 3V.2V.2p .solenoid valve ,and 4A.3A Pneumatic valve sell so hot in Asia, Europe,and Middle East.
We are popular in pneumatic and Hydraulic market. Our accessories taked from the same supplier as Airtac.
Product Overview
Waterproof Underwater Fountain Solenoid Valve is specially designed for fountain and waterscape engineering. With professional full waterproof and sealed design, it can work stably submerged in water.
It is widely used in musical fountains, landscape pools, underwater water supply systems and other projects to realize automatic water flow on-off control.
General Specifications
| Parameter | Specification | Remarks / Selection Notes |
|---|---|---|
| Product Series | SLDF / SLP / HKP / FNSJ Series | Specifically for fountains |
| Operating Principle | Direct-acting diaphragm (small bore) / Pilot-operated (large bore) | DN≤50 direct-acting – zero differential pressure start |
| Control Type | Normally Closed (standard) / Normally Open (optional) | Opens when energized / Closes when energized |
| Body Material | Brass / SUS304 Stainless Steel / 316 Stainless Steel | Stainless steel recommended for seawater |
| Sealing Material | NBR / FKM / EPDM | NBR for general water, EPDM for high temperature |
| Suitable Media | Water, fresh water, seawater | Fountain applications primarily water |
| Working Pressure (DN≤50) | 0 ~ 0.6 MPa (0-6 bar) | Zero differential pressure start |
| Working Pressure (DN≥65) | 0.06 ~ 0.5 MPa | Pilot-operated – requires minimum differential pressure |
| Media Temperature | -5°C ~ +60°C (standard) / up to 120°C | EPDM seals up to 120°C |
| Ambient Temperature | -10°C ~ +60°C | |
| Protection Rating | IP68 (submersible) / IP65 (waterproof) | Choose IP68 for underwater installation |
| Response Time | ≤0.1 ~ 0.2 seconds | Fast open/close |
| Service Life | ≥1.5 million cycles / 200,000 cycles | 1.5 million cycles conventional |
| Operating Voltage | AC24V, AC110V, AC220V, DC12V, DC24V | AC24V safety voltage recommended |
| Power Consumption | AC: ~25W / DC: ~18W | Low power design |
| Insulation Class | Class B / Class H | |
| Port Size Range | DN15 (1/2") ~ DN200 (8") | Threaded for small bore, flanged for large bore |
| Connection Type | Female thread (G-thread) / Flanged | |
| Coil Lead Wire | 1 meter standard (extendable) | Specify length when ordering for longer |
| Manual Override | Standard on some models | Emergency manual function |
| Installation Orientation | Coil vertically upward | Vertical installation customizable |
Dimensions & Specifications by Size
| Connection (G/NPT) | DN | Valve Dimensions (L×W×H mm) | Cv Value | Max Pressure |
|---|---|---|---|---|
| 1/2" | 15 | 68 × 48 × 125 | 4.5 | 0.03~7.5MPa |
| 3/4" | 15 | 68 × 48 × 125 | 4.5 | 0.03~7.5MPa |
| 1" | 25 | 96 × 70 × 145 | 12 | 0.03~7.5MPa |
| 1¼" | 32 | 150 × 135 × 170 | 25 | 0.03~7.5MPa |
| 1½" | 40 | 160 × 145 × 180 | 31 | 0.03~7.5MPa |
| 2" | 50 | 185 × 155 × 210 | 50 | 0.03~7.5MPa |
Dimensions (Threaded Connection)
| Model | Connection Thread | DN | Cv Value | Length L(mm) | Height H(mm) |
|---|---|---|---|---|---|
| SLDF-15 | G1/2" | 15 | 3.2 | 60~74 | 117 |
| SLDF-20 | G3/4" | 20 | 6.0 | 62~71 | 120~123 |
| SLDF-25 | G1" | 25 | 9.0 | 82~87 | 128~135 |
| SLDF-32 | G1¼" | 32 | 12.0 | 102 | 155 |
| SLDF-40 | G1½" | 40 | 21.0 | 110 | 170 |
| SLDF-50 | G2" | 50 | 30.0 | 134 | 200 |
Temperature Ratings by Seal Material
| Sealing Material | Temperature Range | Suitable Media |
|---|---|---|
| NBR | -20℃ ~ +80℃ | Air, water, natural gas |
| EPDM | -40℃ ~ +120℃ | Hot water |
| VITON / PTFE | -50℃ ~ +260℃ | Oil, hot water, low-pressure steam |
Sealing Materials & Temperature Range
| Seal Code | Sealing Material | Fluid Temperature | Suitable Media |
|---|---|---|---|
| X=N | NBR | -20℃ ~ 80℃ | Air, water, natural gas |
| X=E | EPDM | -20℃ ~ 135℃ | Hot water |
| X=V | VITON | -10℃ ~ 155℃ | Hot oil, hot water |
Model & Specification Table (G/NPT Thread Connections)
| Port Size | Orifice (mm) | Flow (Cv) | Pressure Rating |
|---|---|---|---|
| 1/2" | 15 | 4.5 | 0.3~16 Bar |
| 3/4" | 20 | 7.6 | 0.3~16 Bar |
| 1" | 25 | 12 | 0.3~16 Bar |
| 1½" | 40 | 19.2 | 0.3~16 Bar |
| 2" | 50 | 24 | 0.3~16 Bar |
Electrical Specifications
| Voltage | Coil Power | Operating Current | Coil Model | Connection Type |
|---|---|---|---|---|
| AC220V | 9VA | 0.04A | BA11 | Junction box |
| DC24V | 8W | 0.35A | BA11 | Junction box |
| AC110V | 9VA | 0.82A | BA11 | Junction box |
| DC12V | 8W | 1.68A | BA11 | Junction box |
| AC24V | 9VA | 0.375A | BA12 | 300mm lead wires |
| AC36V | 9VA | 0.25A | BA12 | 300mm lead wires |
Quick Selection Guide
| Nominal Diameter | Pipe Size | Recommended Model |
|---|---|---|
| DN10 | 3/8" | 2W-15-31X |
| DN15 | 1/2" | 2W-15-41X |
| DN20 | 3/4" | 2W-20-51X |
| DN25 | 1" | 2W-25-61X |
| DN32 | 1-1/4" | 2W-32-71X |
| DN40 | 1-1/2" | 2W-40-81X |
| DN50 | 2" | 2W-50-91X |
Media & Seal Material Selection
|
Selection Tips
1, Voltage Matching: AC220V is for standard mains power; DC24V/12V are better for industrial control, vehicle, and low-voltage systems. Always confirm the coil voltage to avoid burnout. 2,Temperature Limits: The seal material determines the maximum operating temperature. For example, NBR (80°C max) is not suitable for continuous use in hot water above 80°C, as it will degrade and leak. 3,Media Compatibility: Oily media requires VITON seals, as NBR will swell and fail in oil. Steam applications should use VITON or higher-grade seals. 4,Size Consistency: Always match the valve size to your pipe's nominal diameter. Using a smaller valve will restrict flow and shorten its lifespan.
Supplementary Key Points (3 Points Summary)
✅PTFE Seal UpgradePTFE sealing is newly upgraded, with temperature resistance up to 260℃, excellent resistance to strong acid, alkali and organic solvents, ideal for chemical and high-temperature steam working conditions.
✅Dual Power OptionsIt provides dual power specifications: 22VA/30VA for AC and 17W/24W for DC, matching different coil types and adaptable to customers' various power load requirements.
✅Model Code RuleThe letter X in the model stands for sealing material code: N=NBR, E=EPDM, V=VITON; just replace it directly when ordering.
Our Advantages:
✅Full sealed waterproof structure, safe for long-term underwater use
✅High-strength anti-corrosion body, resistant to water erosion and aging
✅Silent opening and closing, no water hammer impact, stable water flow
✅Excellent sealing performance, zero leakage, durable use
✅Fully waterproof coil, moisture-proof and short-circuit proof
✅Easy installation, stable operation, low failure rate |
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1. Your inquiry related to our products or prices will be replied in 24 hours
2. Well-trained and experienced staffs to answer all your inquiries in fluent English.
3. OEM&ODM, any your customized lightings we can help your to design and put into product.
4. Distributorship is offered for your unique design and some our current models.
5. Protect your sales area, ideas of design and all your private information.
When selecting a stainless steel pneumatic air gripper cylinder, consider factors such as gripping force, stroke length, operating pressure, compatibility with the object size and weight, and the specific environmental conditions of your application. It is advisable to consult the manufacturer's specifications and guidelines to ensure the proper selection, installation, and operation of the gripper cylinder for your specific requirements.
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