NACHI IPH series gear pump
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NACHI IPH Series Gear Pump Specifications
Product Features
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A patented axial and radial pressure loading system ensures high efficiency, with a maximum operating pressure of up to 30MPa (306 kgf/cm²).
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Excellent durability and an exceptionally long service life, suitable for continuous operation in harsh working conditions.
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Modified involute short-tooth gear design realizes internal gearing, significantly reducing pulsation and noise for ultra-quiet operation.
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Simple structural design facilitates convenient maintenance and inspection, lowering downtime and maintenance costs.
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All pump types are installation-compatible with previous designs, enabling easy replacement and upgrade.
Core Specifications
|
Model No.
|
Capacity (cm³/rev)
|
Rated Pressure (MPa)
|
Max. Operating Pressure (MPa {kgf/cm²})
|
Min. Revolution Speed (min⁻¹)
|
Max. Revolution Speed (min⁻¹)
|
Weight (kg) – Type A
|
Weight (kg) – Type B
|
|---|---|---|---|---|---|---|---|
|
IPH-2A(B)-×-11
|
3.60
|
25
|
30 {306}
|
600
|
2000
|
4.4
|
2.4
|
|
5.24
|
4.5
|
2.5
|
|||||
|
6.55
|
4.6
|
2.6
|
|||||
|
8.18
|
4.8
|
2.8
|
|||||
|
IPH-3A(B)-×-20
|
10.2
|
25
|
30 {306}
|
600
|
2000
|
10.5
|
4.8
|
|
13.3
|
10.7
|
5.0
|
|||||
|
15.8
|
11.0
|
5.3
|
|||||
|
IPH-4A(B)-×-20
|
20.7
|
25
|
30 {306}
|
500
|
2000
|
15.2
|
9.5
|
|
25.7
|
15.7
|
10.0
|
|||||
|
32.3
|
16.2
|
10.5
|
|||||
|
IPH-5A(B)-×-21(11)
|
40.8
|
25
|
30 {306}
|
400
|
2000
|
32.0
|
19.0
|
|
50.3
|
33.0
|
20.0
|
|||||
|
63.9
|
34.0
|
21.0
|
|||||
|
IPH-6A(B)-×-21(11)
|
81.3
|
25
|
30 {306}
|
300
|
2000
|
62.0
|
39.0
|
|
101.6
|
64.0
|
41.0
|
|||||
|
125.9
|
66.0
|
43.0
|
Model Number Explanation
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IPH: Series name
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4: Pump size (2, 3, 4, 5, 6)
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B: Mounting method (A: Foot type; B: Flange type)
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25: Capacity (cm³/rev)
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L: Rotation direction (None: Clockwise viewed from shaft end; L: Counterclockwise viewed from shaft end)
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T: Auxiliary symbol (T: With screw-in type flange kit; E: With welded type flange kit; auxiliary symbols must be in alphabetic order)
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20: Design number (11: 2A(B), 5B, 6B; 20: 3A(B), 4A(B); 21: 5A, 6A)
Important Notes
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Capacity refers to the logical discharge rate per rotation.
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Suction pressure range: +0.02 to +0.3 MPa (-0.2 to +0.3 kgf/cm²).
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The maximum working pressure indicated is the limit for conditions with frequent pressure changes.
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Avoid installing the pump with the suction port facing downward.
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Specify the model number in the format above when pipe flanging is required.
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Hydraulic fluid: Use R&O type and wear-resistant ISO VG 32 to 68 (viscosity index ≥ 90) or equivalent. The kinematic viscosity during operation should be 20 to 150 mm²/s.
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Operating temperature range: 5 to 65 °C. If the oil temperature at startup is ≤ 5 °C, perform warm-up operation at low pressure first.
Supplementary Specifications (Partial Models)
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Material: Cast iron
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Maximum operating pressure: 4350 psi
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Pressure rating: 3045 psi
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Shaft side discharge rate: 24.8 to 38.7 GPM
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Process steps：
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.
