XWJ Non-Clogging Pulp Pump | High Efficiency Paper Pulp Pump for Light

Product Overview

The XWJ Non-Blocking Pulp Pump is a highly efficient pulp delivery pump designed to continuously handle media containing fibers. It features low leakage risk, strong anti-clogging performance, and stable operation. The pump uses semi-open or open impellers, with an adjustable wear plate gap to balance solid handling and hydraulic efficiency. It utilizes mechanical seals as standard, with Class D precision bearings and high-grade shaft materials to ensure long-term reliability.

Model Designation

Key Features

• Powerful Solid Handling Capability: The pump can handle media with high viscosity, high concentration, and solid particles.

• Stable Flow with Low Pulsation: The pump provides a continuous and stable flow without pulsation, agitation, or leakage, ensuring smooth operation.

• High Self-Priming Ability: Excellent self-priming ability, making it suitable for systems that require forward and reverse flushing of pipelines.

• Low Vibration and Noise: Operates with low vibration and noise, ensuring smooth and quiet operation even under continuous use.

• Easy Maintenance: Simple structure, easy to disassemble, inspect, and maintain, reducing downtime and maintenance costs.

Engineering Overview

The XWJ Non-Blocking Pulp Pump is designed for continuous operation in light industries and the papermaking sector. It is suitable for media with high viscosity and fiber content, with an operational temperature of up to 110°C and pulp consistency up to 6%. The pump also works well in water/wastewater treatment applications, especially when handling media with high clogging potential and requiring long-term stable operation.

Typical Applications

The XWJ Non-Blocking Pulp Pump is widely used in:

• Pulp and Paper Industry: For handling high-viscosity and fiber-laden pulp.

• Industrial Water/Wastewater Treatment: For transferring wastewater or sewage containing solid particles.

• High Viscosity Fluid Handling: Suitable for high-viscosity fluids, slurries, and fiber-bearing media in various industries.

System Configuration

Pump Components

The XWJ Non-Blocking Pulp Pump features a single-stage, single-suction cantilever design. The main components include the pump casing, impeller, pump cover, wear plates, and bearing bracket assembly. The pump has axial suction and radial discharge. When viewed from the motor side, the pump shaft rotates clockwise. The pump features a back-pull design, allowing for maintenance without removing the suction or discharge pipes, simplifying on-site repairs.

Components and Supply

The XWJ pump’s key components include the pump casing, impeller, wear plates, and bearing assembly. The pump housing can be made of cast iron or stainless steel, and the gearbox and wet parts can be partially or completely stainless steel to meet various corrosion resistance and hygiene requirements. The wear-resistant materials used include wear-resistant rubber, food-grade rubber, and oil-resistant rubber.

Technical Service

The XWJ series pumps offer comprehensive technical support, including installation, commissioning, regular maintenance, and troubleshooting, ensuring the long-term stability and reliability of the equipment.

Operating Conditions

• Applicable Media: Suitable for high-viscosity pulp, slurries, and media containing solid particles.

• Maximum Medium Viscosity: ≤10000 Pa·S.

• Continuous Positive Displacement: The pump operates with continuous positive displacement, providing stable flow and pressure.

• Adjustable Flow Rate: The flow rate can be adjusted by controlling the speed.

• Bidirectional Operation: Supports both forward and reverse operation, ideal for pipeline flushing or water replacement.

Service Conditions

Regular inspection of the pump’s sealing system, impeller, wear plates, and bearing assembly is recommended to ensure the pump operates efficiently and safely.

Protection Features

The XWJ series pumps are equipped with multiple protection features, including overcurrent protection, temperature monitoring, and liquid level protection systems, ensuring the pump can stop operating in abnormal conditions to prevent damage to the equipment.

Selection Standards

When selecting the pump model, consider factors such as the temperature of the media, pH value, solid particle size, pulp consistency, and the required flow and head of the pump, ensuring the selection of the most suitable configuration.

Installation & Dimensions

Outline Drawing

Performance Data

1	Pump Body	7	Hose Connector
2	Adjusting Screw	8	Packing or Mechanical Seal
3	Wear Plate	9	Support Components
4	Impeller	10	Bracket
5	O-ring	11	Water Deflector Ring
6	Pump Cover	12	Impeller Nut

Performance Parameters

Model	Flow Rate (m³/h))	Head (m)	Speed (rpm)	Matching Motor Model and Power (kW)
80XWJ25-12.5	25	12.5	1450	Y100L1-4/2.2
80XWJ25-12.5A	20	10	1450	Y90l-4/1.5
80XWJ25-20	25	20	1450	Y100L2-4/3
80XWJ25-20A	20	16	1450	Y100L-4/2.2
100XWJ50-20	50	20	1450	Y132S-4/5.5
100XWJ50-20A	45	18	1450	Y112M-4/4
100XWJ50-20B	40	16	1450	Y112M-4/4
100XWJ50-32	50	32	1450	Y160M-4/11
100XWJ50-32A	40	26	1450	Y132S-4/5.5
125XWJ100-20	100	20	1450	Y160M-4/11
125XWJ100-20A	90	18	1450	Y132S-4/7.5
125XWJ100-20B	80	16	1450	Y132S-4/7.5
125XWJ100-32	100	32	1450	Y160M-4/15
125XWJ100-32A	90	28	1450	Y160M-4/11
125XWJ100-32B	80	26	1450	Y160M-4/11
150XWJ200-20	200	20	1450	Y180M-4/18.5
150XWJ200-20A	180	18	1450	Y160M-4/15
150XWJ200-20B	160	16	1450	Y160M-4/11
150XWJ200-32	200	32	1450	Y200L-4/30
150XWJ200-32A	187	28	1450	Y180M-4/22
150XWJ200-32B	170	24	1450	Y180M-4/18.5
200XWJ400-20	400	20	1450	Y225S-4/37
200XWJ400-20A	380	18	1450	Y200L-4/30
200XWJ400-20B	340	15	1450	Y180L-4/22
200XWJ400-32	400	32	1450	Y250M-4/55
200XWJ400-32A	375	28	1450	Y225M-4/45
200XWJ400-32B	340	24	1450	Y225S-4/37
Note: The test medium is clean water at normal temperature.

Performance Curves

OEM & Custom

We support OEM/ODM customization for global clients, including stainless steel versions, special voltage and frequency, mechanical seal material upgrades, custom impeller trimming, and baseplate or coupling configurations. Export packaging and private labeling are available upon request, ensuring compatibility with paper, chemical, and water treatment industries.

FAQs

1. What is the main feature of the XWJ pulp pump?
   It offers high efficiency, minimal leakage, and strong anti-clogging performance with adjustable impeller clearance and mechanical seal options, ensuring long-term stable operation.
2. What materials are available for the pump components?
   Standard materials include cast iron, ductile iron, carbon steel, or stainless steel for corrosion resistance and durability, suitable for various harsh environments.
3. Can the pump handle high-concentration pulp?
   Yes, the XWJ pulp pump is suitable for pulp concentrations up to 6% and temperatures up to 110°C, making it ideal for pulp transportation.
4. What seal type is used?
   Mechanical seals or packing seals can be selected depending on the medium and maintenance requirements, ensuring reliable performance in different conditions.
5. How is the impeller clearance adjusted?
   The clearance is adjusted using a front screw; turn counterclockwise until contact, then back half a turn for optimal performance.
6. Do you provide OEM branding and custom voltage options?
   Yes, we support OEM labeling, custom motors (220V–460V, 50/60Hz), and international packaging to meet different market requirements.
7. Which markets do you export to?
   Our XWJ pulp pumps are exported to Southeast Asia, Europe, Africa, and South America, widely used in the paper, chemical, and water treatment industries.