T7DB/T7DBS Parker Denison Double Vane Pump
Single pump：T6C、T6D、T6E、T6CM、T6CP、T7B、T7BS、T7D、T7DS、T7E、T7ES
Double pump：T6CC、T6DC、T6EC、T6ED、T6EE、T7BB、T7BBS、T7DB、T7DBS、T7EB、T7EBS、T67CB、T67DB、T67EB、T67DBS
Triple pump：T6DCC、T6EDC、T6ECC、T6EDCC、T7DBB、T7DBSB、T7EBB、T7EBSB、T67EDB、T67EDBS、T67DCB、T67DDBS
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1. Product Overview
2. General Core Technical Parameters
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Parameter Item
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Technical Value
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Remarks
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Pump Type
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Double Fixed Vane Pump
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Dual independent D-series cartridges, coaxial drive
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Single Cartridge Displacement Range
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5.8~158.0 ml/rev
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Standard B02-B42, including special B46/B50 specifications
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Max. Total Double Pump Displacement
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316.0 ml/rev
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B42+B42 combination
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Max. Intermittent Pressure
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240 bar
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Short-term peak working pressure
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Max. Continuous Pressure
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210 bar
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Recommended pressure for long-term stable operation
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Normal Speed Range
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600~3000rpm (small displacement); 600~2200rpm (large displacement B38/B42)
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Larger displacement corresponds to lower limit speed
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Minimum Stable Speed
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400 rpm
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Ensure vane lubrication and stable output
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Volumetric Efficiency
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93%~94%
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Typical value under standard working conditions
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|
Operating Temperature Range
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-20℃~+80℃
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Compatible with mainstream hydraulic media
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Applicable Media
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Mineral oil, biodegradable oil, water-based hydraulic fluid
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Recommended medium viscosity: 10~100cSt
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Port Combination Types
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64 types
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Adapt to piping layout of various equipment
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Equipment Weight
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28~45kg
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Varies with displacement and configuration
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Rotation Direction
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Standard R (Clockwise), optional L (Counterclockwise)
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Synchronous rotation of dual cartridges
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3. Cartridge Displacement Specification Chart (Single Cartridge)
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Displacement Code
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Theoretical Displacement (ml/rev)
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Displacement Code
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Theoretical Displacement (ml/rev)
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|
B02
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5.8
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B22
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70.0
|
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B03
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9.8
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B24
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77.5
|
|
B04
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12.8
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B28
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89.5
|
|
B05
|
15.9
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B31
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99.2
|
|
B06
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19.6
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B35
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113.4
|
|
B07
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22.5
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B38
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120.6
|
|
B08
|
25.4
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B42
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158.0
|
|
B10
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31.8
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B46
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170.0 (Special Specification)
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|
B12
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38.0
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B50
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180.0 (Special Specification)
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B14
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44.3
|
–
|
–
|
|
B17
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54.4
|
–
|
–
|
|
B20
|
66.0
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–
|
–
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4. Model Coding Rules
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Code Position
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Code Content
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Detailed Definition
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|
1
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T7DB/T7DBS
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Series Code: T7DB = ISO 4-bolt mounting; T7DBS = SAE Type C 2-bolt mounting
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2
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B42
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Shaft end cartridge displacement code (corresponding to 158.0ml/rev)
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3
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B12
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Cover end cartridge displacement code (corresponding to 38.0ml/rev)
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4
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1/3/5
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Shaft type: 1=SAE C key shaft; 3=SAE CC spline shaft; 5=SAE D/E key shaft
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5
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R/L
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Rotation direction: R=Clockwise (standard); L=Counterclockwise (custom)
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|
6
|
00
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Standard basic configuration without additional functions
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7
|
A1
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Port position configuration code, suitable for medium and large flow system layout
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|
8
|
M0
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Seal type: M0=Standard NBR nitrile rubber seal (general working conditions)
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5. Summary of Common Typical Models
5.1 T7DB Series (ISO 4-Bolt Mounting)
5.2 T7DBS Series (SAE Type C 2-Bolt Mounting)
6. Core Product Advantages
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Dual-circuit Independent Oil Supply: Dual cartridges work independently to output two hydraulic circuits with different pressures and flows, perfectly matching multi-load hydraulic systems. It can replace two single pumps and simplify equipment structure.
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High Pollution Resistance & Reliability: Adopts exclusive double-lip vane structure, reducing dependence on hydraulic oil cleanliness and adapting to harsh industrial working conditions. NAS7 grade or above hydraulic oil is recommended for longer service life.
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Low Noise & Low Pulsation: Optimized cam ring and vane structure achieves pressure pulsation of only ±2bar, with operating noise 3-5dB(A) lower than ordinary pumps, ensuring higher system stability.
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Convenient Maintenance: The plug-in independent cartridge design allows single cartridge replacement without overall pump disassembly, greatly reducing maintenance costs and downtime.
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Strong Installation Adaptability: Equipped with 64 port combination modes and two standard mounting flanges, compatible with the layout of various industrial and mobile mechanical equipment.
7. Applicable Application Scenarios
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Complete products, original authentic products, fast delivery!Welcome to consult.
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.
