Submersible Multistage Pump
1. CE, GS, RoHS, ISO9001, CCC Certified
2. Energy-efficient and long-lasting design
3. 4-inch pump body with stainless steel 100% copper wire and plastic impellers
**Applications**
- Ideal for water supply from wells or reservoirs
- Suitable for domestic use, civil and industrial applications
- Perfect for garden irrigation and agricultural use
**Fluid Compatibility**
- Designed for clean, non-abrasive fluids
- Chemically neutral and similar to water in performance
**Construction Features**
- Available in Y-oil type with cast iron pump head or YT-oil type with brass pump head
- Available in single-phase and three-phase options
**Specifications**
- 100% copper wire
- 220V/50Hz
- CE and GS certified
- Energy-saving and eco-friendly
- 1-year warranty
**Product Description**
High-quality DAYUAN submersible deep well water pump designed for reliable and efficient operation.
**Application**
- Water supply from wells or reservoirs
- Domestic, civil, and industrial use
- Garden and irrigation purposes
**Motor and Pump**
- Rewindable motor for easy maintenance
- Equipped with start control box or digital auto-control box
- Designed according to NEMA dimension standards
**Operating Limits**
- Maximum fluid temperature: +40°C
- Maximum sand content: 0.25%
- Maximum immersion depth: 80m
- Minimum well diameter: 4"
**Key Features**
- CE and GS certified
- 100% copper wire with automatic wiring
- Cold-rolled silicon steel sheet for improved efficiency
- CNC precision lathe for smoother shafts
- Rigorous testing including water test, outgas test, and performance test
- Anti-rust treatment on castings and electrophoresis coating
- 24 years of industry experience with 1-year warranty
**Material Composition**
- Pump external casing: AISI 304 SS or AISI 201 SS
- Delivery casing: Cast-Cu or AISI 304 SS
- Suction lantern: Cast-Cu or AISI 304 SS
- Diffuser: Plastic PC
- Impeller: Plastic POM
- Shaft: AISI 316 SS or AISI 304 SS
- Shaft coupling: AISI 316 SS or AISI 304 SS
- Wear ring: AISI 304 SS
- Motor external casing: AISI 304 SS or AISI 201 SS
- Top chock: Cast-Cu or Cast-iron
- Bottom support: AISI 304 SS
- Mechanical seal: Special seal for deep well (carbon-SIT/TC)
- Bearing: NSK or C&U
- Seal lubricant oil: Food-grade and pharmaceutical-grade oil
**Model Analysis**
**Technical Data**
**Packaging & Shipping**
**Company Information**
**Company Introduction & Production Process**
**Products' List**
**Main Markets**
- America, Russia, Australia, Turkey, Egypt, Germany, Bangladesh, Thailand, Sri Lanka, Pakistan, Iran, Lebanon, Iraq, Panama, Colombia, Afghanistan, Dubai, Hong Kong, Vietnam, etc.
**Certifications**
- CE / ISO9001 / UL / GS / CCC
**Our Services**
After-sales support:
- We welcome customer feedback and suggestions
- If you have any questions, please contact us via email or phone immediately
We promise to:
- Offer the best price
- Simplify the purchasing and payment process
- Deliver products worldwide with speed and accuracy
- Ensure high product quality
**FAQ**
Q: Can you do OEM?
A: Yes, we can.
Q: What is the MOQ?
A: Typically 100 pieces per model.
Q: What is the delivery time?
A: Usually 35 days, depending on order quantity.
Q: What is the warranty period?
A: 1 year.
Q: What certifications do your products have?
A: We have CE, GS, UL, and RoHS certifications. Most of our products meet CE standards.
Q: Do you have Skype?
A: Yes, you can add esther.1028 for further communication.
**Technical Table**
Voltage | Model | Power | M³/H | 0 | 3 | 4 | 5 | 6 | 7 | |
KW | HP | L/MIN | 0 | 50 | 67 | 84 | 100 | 117 | ||
220-240V/50HZ | QJD6-23/7-0.55Y | 0.55 | 0.75 |
Head (M) |
41 | 35 | 32 | 29 | 23 | 16 |
QJD6-23/7-0.55YT | 0.55 | 0.75 | 41 | 35 | 32 | 29 | 23 | 16 | ||
QJD6-30/9-0.75Y | 0.75 | 1 | 55 | 47.5 | 43.5 | 38 | 30 | 19.5 | ||
QJD6-30/9-0.75YT | 0.75 | 1 | 55 | 47.5 | 43.5 | 38 | 30 | 19.5 | ||
QJD6-40/12-1.1Y | 1.10 | 1.5 | 71 | 61 | 56 | 50 | 40 | 26 | ||
QJD6-40/12-1.1YT | 1.10 | 1.5 | 71 | 61 | 56 | 50 | 40 | 26 | ||
QJD6-52/16-1.5Y | 1.50 | 2 | 91 | 81 | 74 | 63.5 | 52 | 33 | ||
QJD6-52/16-1.5YT | 1.50 | 2 | 91 | 81 | 74 | 63.5 | 52 | 33 | ||
QJD6-70/21-2.2Y | 2.20 | 3 | 121 | 105 | 99 | 90 | 70 | 48 | ||
QJD6-70/21-2.2YT | 2.20 | 3 | 121 | 105 | 99 | 90 | 70 | 48 | ||
380-415V/50HZ | QJ6-23/7-0.55Y | 0.55 | 0.75 |
Head (M) |
41 | 35 | 32 | 29 | 23 | 16 |
QJ6-23/7-0.55YT | 0.55 | 0.75 | 41 | 35 | 32 | 29 | 23 | 16 | ||
QJ6-30/9-0.75Y | 0.75 | 1 | 55 | 47.5 | 43.5 | 38 | 30 | 19.5 | ||
QJ6-30/9-0.75YT | 0.75 | 1 | 55 | 47.5 | 43.5 | 38 | 30 | 19.5 | ||
QJ6-40/12-1.1Y | 1.10 | 1.5 | 71 | 61 | 56 | 50 | 40 | 26 | ||
QJ6-40/12-1.1YT | 1.10 | 1.5 | 71 | 61 | 56 | 50 | 40 | 26 | ||
QJ6-52/16-1.5Y | 1.50 | 2 | 91 | 81 | 74 | 63.5 | 52 | 33 | ||
QJ6-52/16-1.5YT | 1.50 | 2 | 91 | 81 | 74 | 63.5 | 52 | 33 | ||
QJ6-70/21-2.2Y | 2.20 | 3 | 121 | 105 | 99 | 90 | 70 | 48 | ||
QJ6-70/21-2.2YT | 2.20 | 3 | 121 | 105 | 99 | 90 | 70 |
Tungstic acid can exist in various states, mostly yellow powder or crystal. Soluble in hydrofluoric acid, slowly soluble in caustic alkali solution, insoluble in water and other acids.
General formula mWO3 · nH2O. There are many kinds of known tungstic acid, all of which are polymer compounds formed by combining tungsten trioxide WO3 with water in different ratios and forms. Known tungstic acid includes yellow tungstic acid, leucic acid, metatungstic acid, etc.
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