T7DB、T7DBS series Vane pump
T6 series vane pump models: T6C, T6D, T6E,T6CC, T6DC, T6EC,T67DBB, T67DCB, T6DCC, T67DDBS, T6DDCS, T67EDB(S), T6EDC(S), etc.
T7 series vane pump models: T7B, T7BS, T7D, T7E,T7DB, T7DC, T7DBB, T7DCB, T7DCC, T7DDB, T7EDB, etc.
Specifications of Parker Denison T7DB & T7DBS Series Vane Pumps
1. Basic Information
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Item
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Description (T7DB / T7DBS)
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Product Series
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Parker Denison T7DB, Parker Denison T7DBS
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Pump Type
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Single Fixed Displacement Vane Pump (optimized for high-pressure industrial applications; T7DBS features reinforced mounting compatibility for heavy-duty scenarios)
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Core Technology
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Denison Advanced High-Pressure Vane Technology, double-lip vane design with wear-resistant tungsten coating, enhanced hydraulic balance structure, and improved volumetric efficiency under high-pressure conditions
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Mounting Type
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T7DB: SAE 4-bolt mounting flange (SAE J744 standard); T7DBS: ISO 4-bolt mounting flange (ISO 3019/1 standard), both with reinforced flange structure for high-torque operation
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Weight Range
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Approx. 18kg – 32kg, varies by displacement size and optional configurations (T7DBS is 1-2kg heavier due to reinforced flange and housing design)
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Port Configurations
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45 port position combinations for both series, optional port sizes (3/4″ to 2″) to adapt to high-flow and high-pressure system requirements
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2. Key Technical Parameters
2.1 Pressure & Speed
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Parameter
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Value (T7DB / T7DBS)
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Remarks
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Maximum Intermittent Pressure
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Up to 310 bar / Up to 310 bar
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Intermittent operation duration: ≤ 8% of total operating time; prolonged intermittent pressure may damage vane and bearing seals
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Maximum Continuous Pressure
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Up to 280 bar / Up to 280 bar
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Recommended for long-term high-pressure operation; stable pressure output ensures system reliability and extends pump service life
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Speed Range
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500 – 2200 rpm / 500 – 2200 rpm (industrial type); 400 – 2000 rpm (heavy-duty high-pressure working conditions)
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Displacement and speed are inversely proportional; higher displacement requires lower maximum operating speed to maintain stability
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Minimum Stable Speed
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Approx. 350 rpm / Approx. 350 rpm
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Ensures adequate lubrication of internal components under high-pressure conditions, prevents vane jamming and abnormal noise
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Volumetric Efficiency
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Typically 0.93 – 0.95 / Typically 0.93 – 0.95
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High volumetric efficiency minimizes energy loss and system heat generation, adapting to long-term high-pressure operation
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Noise Level
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≤ 76 dB(A) @ 1800 rpm / ≤ 75 dB(A) @ 1800 rpm
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Optimized vane and cam ring profile, ultra-low pressure pulsation (±1.8 bar), reducing pipeline vibration and noise pollution
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2.2 Displacement Specifications
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Displacement Code
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Displacement (ml/rev)
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Applicable Series
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Remarks
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008
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25.4
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T7DB, T7DBS
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Small displacement, suitable for high-pressure, low-flow system applications
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010
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31.8
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T7DB, T7DBS
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Medium-small displacement, widely used in light-high-pressure industrial equipment
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012
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38.2
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T7DB, T7DBS
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Universal displacement, compatible with most medium-high pressure, medium-flow systems
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016
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50.8
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T7DB, T7DBS
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High-efficiency displacement, balanced flow and high-pressure performance
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020
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63.5
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T7DB, T7DBS
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Medium displacement, suitable for high-pressure, medium-flow industrial systems
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025
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79.4
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T7DB, T7DBS
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Medium-large displacement, ideal for heavy-duty high-pressure industrial applications
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030
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95.2
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T7DB, T7DBS
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Large displacement, high flow output, suitable for high-demand high-pressure systems
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040
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127.6
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T7DB, T7DBS
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Extra-large displacement, compatible with high-flow, high-pressure systems
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050
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159.5
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T7DB, T7DBS
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Maximum displacement for the series, suitable for large-scale high-pressure industrial equipment
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2.3 Other Key Parameters
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Contamination Resistance: Double-lip vane with tungsten wear-resistant coating significantly reduces sensitivity to hydraulic oil cleanliness (NAS 6 grade or higher is recommended for optimal performance; NAS 5 grade for harsh high-pressure conditions)
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Temperature Range: -20°C ~ +85°C (T7DB / T7DBS); adjustable to -30°C with special low-temperature hydraulic oil, suitable for harsh industrial environments
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Shaft Type: Keyed shaft (SAE F) as standard; splined shaft (SAE CC/SAE D) optional for both series, with high-torque bearing capacity to adapt to high-pressure operation
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Rotation Direction: Standard clockwise (R); counterclockwise (L) optional, stable transmission and consistent output even under high-pressure conditions
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Seal Type: Standard Nitrile Rubber (NBR); Viton, EPDM or PTFE seal materials optional based on working conditions and hydraulic medium, enhanced seal design to prevent high-pressure leakage
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Flow Rate: Up to 300 L/min @ 2000 rpm (varies by displacement size; T7DBS has the same flow capacity as T7DB with the same displacement)
3. Applicable Medium & Environment
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Applicable Medium: Mineral oil, biodegradable oil, water-based hydraulic fluid, etc.; recommended viscosity 12 ~ 110 cSt for stable high-pressure operation
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Applicable Fluids: Compatible with fire-resistant fluids (phosphate esters, water glycols) and biodegradable fluids (organic esters, rapeseed oil), ensuring reliable performance in harsh high-pressure environments
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Application Fields: High-pressure industrial hydraulic systems, heavy-duty machinery (e.g., heavy engineering machinery, metallurgical smelting equipment, marine hydraulic systems, large hydraulic presses, mining machinery)
4. Core Features
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High-Pressure Resistance: Enhanced structural design and double-lip vane technology ensure stable operation under high-pressure conditions, with strong durability and long service life
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Dual Mounting Options: T7DB (SAE flange) and T7DBS (ISO flange) meet different industrial mounting standards, with reinforced flanges to adapt to heavy-duty high-pressure working conditions
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High Stability: Enhanced hydraulic balance structure and wear-resistant vane design ensure stable pressure and flow output, reducing operational failures in high-pressure scenarios
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Easy Maintenance: Integrated cartridge design allows quick disassembly and replacement, reducing downtime and maintenance costs by approximately 60%
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Low Noise & Low Pulsation: Optimized vane and cam ring profile minimizes pressure pulsation and noise, protecting pipeline and system components under high-pressure operation
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Wide Adaptability: Compatible with various hydraulic media and temperature ranges, suitable for diverse high-pressure industrial application scenarios.
T6 series vane pump models: T6C-003 to T6C-031, T6D-014 to T6D-050, T6E-042 to T6E-085, etc.
T7 series vane pump models: T7B, T7BS, T7D, T7E, etc.
T6 series double pump model: T6CC, T6DC, T6EC, etc.
T7 series double pump model: T7DB, T7DC, etc.
T6 series triple pump models: T67DBB, T67DCB, T6DCC, T67DDBS, T6DDCS, T67EDB(S), T6EDC(S), etc.
T7 series triple pump models: T7DBB, T7DCB, T7DCC, T7DDB, T7EDB, etc.
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.
