Pump
>> Pump Body: cast iron & support under special anti-rust treatment
>>Â Impeller: stainless steel impeller, brass impeller, ppo impeller
>>Â Mechanical Seal: carbon / ceramic / stainless steel
Motor
>> Built-in thermal protector for single phase motor
>> Motor with copper winding
>>Â Motor Housing: Steel-plate, Aluminum alloy
>> C&U bearing
>>Â AISI 304 shaft or 45# carbon steel
Working Range
>> Liquid: clean liquids without suspended solids, non-aggressive
>> Liquid temperature: -10ºC and +100ºC
>> Ambient temperature up to +40ºC
>> Max. working pressure 10 bar
>> Continuous service S1
>> Insulation: B
>> Protection: IP44
Advantages
>> Electronic pressure switch controlled by PC clip to avoid frequent pressure switch operation.
>> Every 72 hours it will start for 10 seconds to prevent pump lock if not used for a long time.
>> Water protection system to avoid the pump being in anhydrous state for a long time.
>> Delay 3 seconds before starting to avoid spark-over socket and protect personal safety.
>>Â Flow priority system, electric pump uses acme, truly achieve full pressure.
Application
                                                                     | Model | HP | W | Current (A) | Capacitor (uf) | H.Max (M) | Q.Max (L/min) | Pipe Size | Pressure Set (bar) | Tank (L) |
| GDHm-125A | 0.15 | 125 | 1.5 | 8 | 30 | 32 | 1"X1" | 1.5 | 2 |
| GDHm-250A | 0.35 | 250 | 3.5 | 10 | 32 | 35 | 1"X1" | 1.8 | 2 |
| GDHm-370A | 0.5 | 370 | 4.5 | 10 | 36 | 36 | 1"X1" | 2.2 | 2 |
| GDHm-550A | 0.75 | 550 | 2.9 | 15 | 45 | 55 | 1"X1" | 2.6 | 2 |
| GDHm-750A | 1 | 750 | 3.5 | 20 | 55 | 58 | 1"X1" | 2.8 | 2 |
| GDHm-1100A | 1.5 | 1100 | 4.5 | 25 | 62 | 66 | 1"X1" | 3.2 | 2 |
GDHm Automatic Self-priming Pump   Â
    Â
| Item | Description | Item | Description | Item | Description | Item | Description |
| 11 | Press Sensor | 21 | Bearing | 31 | Screw | 41 | O-ring |
| 12 | Screw | 22 | Shaft Key | 32 | Cable Plug | 42 | Pressure Tank |
| 13 | Inlet Rubber | 23 | Rotor | 33 | Cable Net | 43 | Pressure Sensor |
| 14 | Stainless steel Inlet | 24 | Bearing | 34 | Screw | 44 | Cover |
| 15 | O-ring | 25 | Stator | 35 | PC Clip | 45 | Plastic Base |
| 16 | Screw | 26 | Motor House | 36 | Voltage Regulator | 46 | Screw |
| 17 | O-ring | 27 | Terminal Box | 37 | O-ring | Â | Â |
| 18 | Screw | 28 | Screw | 38 | Fan | Â | Â |
| 19 | Front Plate | 29 | Capacitor | 39 | Screw | Â | Â |
| 20 | Screw | 30 | Terminal Box | 40 | Fan Cover | Â | Â |
Production Work-flow Chart of Pump
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                           About Us
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FAQ
Q: Are you trading company or manufacturer ?
A: We are a factory specializing in the production of self-priming water pumps with spare parts. Our products are designed for industrial and commercial use, ensuring high quality and durability.
Q: How long is your delivery time?
A: If the product is in stock, delivery takes 5-10 days. For custom orders or when the item is out of stock, the lead time is typically 15-20 days depending on the quantity ordered.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we can provide samples at no cost, but the customer is responsible for the shipping fees. This allows you to test the product before placing a larger order.
Q: What is your terms of payment ?
A: For payments under USD 1000, we require 100% upfront payment. For orders over USD 1000, a 30% deposit via T/T is required, with the remaining balance due before shipment.
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