SL Corrosion Resistant Vertical FRP Chemical Pump

Product Overview

The SL Vertical FRP Chemical Pump is a single-stage, single-suction vertical centrifugal in-line pump. All wetted parts are manufactured from modified phenolic fiberglass-reinforced plastic (FRP) using a high-temperature and high-pressure molding process.
This series combines corrosion resistance, temperature capability, lightweight construction, high mechanical strength, and dimensional stability, and is suitable for continuous transfer of corrosive media in industrial services.

Model Designation

Key Features

• Modified phenolic flame-retardant FRP wetted parts provide strong corrosion resistance.

• Vertical in-line, single-stage, single-suction configuration for stable operation.

• Advanced hydraulic design maintains consistent hydraulic performance within the rated duty range.

• High structural strength, good dimensional stability, and lightweight construction for easier installation and servicing.

Engineering Summary

The SL Vertical FRP Chemical Pump adopts an optimized hydraulic design to ensure stable hydraulic performance while keeping the mechanical structure simplified.
The material system and manufacturing process are optimized for long-term operation with corrosive fluids, delivering reliable performance and efficiency within the rated operating range. It represents a mature, proven pump solution for corrosion-resistant process systems.

Typical Applications

The SL Vertical FRP Chemical Pump is suitable for handling:

• Hydrochloric acid at various concentrations

• Low-concentration sulfuric acid

• Other non-oxidizing strong acids

• Organic acids and inorganic salt solutions

• Various organic solvents

It is widely used in chemical processing, petrochemical, pharmaceutical, pesticide, daily chemical, chemical fiber, water treatment, machinery, metallurgy, and environmental industries, particularly for corrosion-resistant process duties.

System Configuration

The pump features a vertical in-line arrangement and can be integrated directly into piping systems with a small footprint. The simplified mechanical structure supports routine inspection and component replacement, facilitating long-term operation and maintenance management while minimizing service complexity.

Components & Supply

The SL Vertical FRP Chemical Pump mainly consists of:

• FRP pump casing and wetted components

• Centrifugal impeller

• Vertical in-line piping connection structure

• Electric motor

• Base and installation components

Technical Service

The vertical in-line installation requires minimal site space. The simplified structure supports routine inspection and replacement of service parts, enabling efficient maintenance and long-term operation management while reducing overall service complexity.

Operating Conditions

• Applicable media: hydrochloric acid, low-concentration sulfuric acid, non-oxidizing strong acids, organic acids, inorganic salts, and organic solvents

• Maximum liquid temperature: < 100°C

• Flow range: 3.2–12.5 m³/h

• Head range: 12.5–32 m

• Rated speed: 2900 r/min

• Motor power: 0.75–4 kW

• Connection size: 25–50 mm

Service Conditions

Designed for continuous duties with corrosive media. The material system and manufacturing process are optimized for long-term operation to maintain structural and dimensional stability and to support long-term maintenance management.

Protection Functions

• The FRP wetted-part material system is designed for corrosive-service conditions to reduce the risk of material degradation in aggressive environments.

• High-temperature and high-pressure molding improves structural and dimensional stability, supporting long-term operating reliability.

Selection Criteria

Pump selection should be based on the actual media type and concentration, liquid temperature (< 100°C), target flow and head range (3.2–12.5 m³/h; 12.5–32 m), and should be matched with the rated speed (2900 r/min), motor power (0.75–4 kW), and connection size (25–50 mm) to ensure stable operation within the rated duty range.

Installation & Dimensions

Outline Drawing

Performance Data

1	Pump Body
2	Impeller
3	Pump Cover
4	Stationary Ring Gland
5	Mechanical Seal
6	Bracket
7	Stud Bolt
8	Motor
9	Impeller Shaft

Performance Parameters

Model	Flow Rate m3/h	Head m	Speed r/min	NPSH m	Efficiency %	Motor Power kW
SL25-12.5	3.2	12.5	2900	3	37	0.55
SL40-20	6.3	20	2900	3	45	1.1
SL50-20	12.5	20	2900	3	57	2.2
SL50-32	12.5	32	2900	3	47	3/4

Product Models & Specifications

Model	DN	D	D1	D2	b	n	d	L1	L2	H	H1	D3	D4	b1	n1	d1
SL25-12.5	25	115	85	65	15	4	14	110	130	430	70	125	100	16	4	14
SL40-20	40	145	110	88	19	4	18	140	160	460	80	150	110	15	4	14
SL50-20	50	160	125	100	21	4	18	160	180	580	100	172	140	16	4	14
SL50-32 (3 kW)	50	160	125	100	21	4	18	180	200	660	120	200	165	20	4	18
SL50-32 (4 kW)	50	160	125	100	21	4	18	180	200	680	120	200	165	20	4	18

OEM & Custom

Chaodun Pump offers OEM/ODM services for SL vertical FRP pumps, including material customization, performance tuning, seal selection, and special configurations for high-corrosion industrial applications.

FAQs

1. Q1: What is the SL Vertical FRP Chemical Pump used for?
   It is used for transferring corrosive chemical solutions such as acids, salts, and solvents.
2. Q2: What materials are used in the pump?
   Modified phenolic fiberglass reinforced plastic (FRP) with stainless steel fasteners.
3. Q3: What is the operating temperature range?
   Suitable for liquids below 100°C.
4. Q4: Can it handle strong acids?
   Yes, especially non-oxidizing acids such as hydrochloric and low-concentration sulfuric acid.
5. Q5: What industries use this pump?
   Chemical, petrochemical, water treatment, pharmaceutical, and metallurgy sectors.
6. Q6: Is it easy to maintain?
   Yes, simple structure allows easy disassembly and part replacement.
7. Q7: Does Chaodun Pump provide OEM customization?
   Yes, full OEM and ODM customization including size, materials, and structure design.