Continuous Rubber Chemical Barrier
The RLC rubber lining is applied as a continuous surface so the liquid contacts rubber, not exposed cast iron. This protects against pitting, corrosion, and wall thinning in acid and slurry duty.
RLC Series
Rubber Lined Chemical Pumpfor Corrosive Acids, Slurries and Abrasive Liquid Transfer
Rubber-lined on cast iron · EN-9/SS316 shaft · Up to 3 mm solids · Acids and abrasive slurry
The RLC Series rubber lined chemical pump from Shubham Industries, Ahmedabad, is a centrifugal pump where all surfaces in contact with the process liquid are rubber-lined on cast iron or manufactured from corrosion-resistant non-metallic materials. The rubber lining acts as a continuous chemical barrier between the liquid and cast iron structure, protecting against acid corrosion while maintaining metal rigidity. The semi-open rubber lined impeller handles solid particles up to 3 mm, making RLC suitable for hydraulic acid at all concentrations, phosphoric acid, lime slurry, ore slurry, pigment slurry, industrial effluents, and abrasive slurries. Standard range: 10 M³/hr to 40 M³/hr, up to 20 meters head. Higher models available on request. Manufactured at Kuha, Ahmedabad, Gujarat - ISO 9001:2015 certified since 1987.
Capacity
10-40 M³/hr
Head
Up to 20 m
Solids
Up to 3 mm
Lining
Rubber on Cast Iron
Rubber lined duty proof
- Casing
- Rubber lined on cast iron
- Capacity
- 10-40 M³/hr
- Head
- Up to 20 m
- Solids
- Up to 3 mm
How It Works
How Rubber Lining Protects Against Acid Corrosion and Abrasive Wear
A rubber lined pump uses a continuous bond of rubber applied to internal wet-end surfaces in contact with the process liquid. The rubber acts as a chemical barrier between the liquid and the cast iron structure underneath while cast iron provides structural strength and rigidity. The result is chemical resistance of rubber with mechanical strength of metal.
Semi-Open Rubber Impeller for Solids
The semi-open rubber lined impeller allows fine abrasive solids up to 3 mm to pass without blocking. Rubber resists acid attack while absorbing particle impact.
Precision Bearing Arrangement
Inboard and outboard bearing functions are separated for radial and thrust loads. Precision bored bearing fits support reliable operation in chemical plant duty.
Configure RLC Series
Configure your RLC acid and slurry requirement.
Select the liquid duty, shaft arrangement, sleeve material, and drive format for the RLC series. Final pump confirmation depends on chemical concentration, solids, temperature, and required duty point.
Available Arrangements
RLC Rubber Lined Pump Supply Options
RLC arrangements are selected around liquid compatibility, abrasive solids, drive type, and site installation.
Rubber Lined Chemical Pump
Standard RLC rubber lined chemical pump arrangement for acids, abrasive slurries, and industrial effluent.
Double Unit / Custom Arrangement
Double unit and custom RLC arrangements for duty-specific standby or installation requirements.
Configuration image pending
Coupling Drive
Coupling drive is the standard RLC drive arrangement and is confirmed with motor and site details.
Configuration image pending
V-Belt Drive on Request
V-belt drive is reviewed where indirect drive or speed matching is required.
Technical Specifications
RLC Series Technical Specifications
The RLC Series covers flows from 10 M³/hr to 40 M³/hr and heads up to 20 meters in standard configurations. The semi-open rubber lined impeller handles solids up to 3 mm. Higher models are available on request.
| Parameter | Value |
|---|---|
| Pump Type | Rubber-lined centrifugal - acid and slurry |
| Casing | Rubber lined on cast iron (continuous bond) |
| Impeller | Semi-open - rubber lined |
| Shaft | EN-9 or SS316 |
| Shaft Sleeve | Alloy-20 / Ceramic / FRP |
| Ball Bearing | Inboard floats axially; outboard carries radial and thrust load; all fits precision bored |
| Gland Packing | Compatible with liquid handled |
| Drive | Coupling drive standard / V-belt on request |
| Capacity Range | 10 M³/hr to 40 M³/hr standard |
| Max Head | Up to 20 meters |
| Solid Handling | Up to 3 mm particle size |
| Higher Models | Available on request |
| Certification | ISO 9001:2015 |
Shaft, sleeve, and seal selection confirmed at order stage based on liquid, concentration, and temperature. Higher capacity and head available on request.
Applications
Where the RLC Series Rubber Lined Pump Is Used
The RLC Series is used wherever both chemical attack and abrasive wear occur simultaneously: acid slurries, lime slurry, ore slurry, pigment slurry, and industrial effluent with suspended solids.
Acid Service
Hydraulic acid at all concentrations, dilute sulphuric acid, and phosphoric acid solutions in chemical and industrial process systems. Confirm temperature and concentration before ordering.
Slurry and Abrasive Duty
Lime slurry, iron ore slurry, coal ash slurry, river-bed gravel abrasive silt, pigment slurry, and ore slurry. The semi-open rubber impeller handles particles up to 3 mm.
Industrial Effluents and Process
Industrial effluents with dissolved acids and suspended solids, paper stock pumping, sea water circulation, acidic slurries, and hypochlorite compound handling.
Abrasive Chemical Compounds
Calcium hypochlorite, potassium hypochlorite, copper oxychloride, coal wash water, fly ash sluicing, and abrasive silt where chemical and abrasive attack occur together.
Water Treatment
Lime slurry dosing, effluent slurry circulation, and sea water transfer where suspended solids or treatment chemicals are present.
Paper and Pulp
Paper stock, suspended fibre, dissolved acid effluent circuits, pigment slurry, and coating or finishing slurry transfer.
When RLC May Not Be the Right Choice
For the most aggressive toxic media at elevated temperature requiring PTFE-equivalent resistance, specify FLC. For larger acid flow or higher head, specify HPP. For concentrated acids attacking rubber, confirm compatibility with engineers before ordering RLC. For hygienic food or pharmaceutical duty, specify SCS. Always confirm liquid, concentration, and temperature before finalising selection.
Selection Guide
RLC Rubber Lined Pump vs Other Shubham Pump Series
The RLC is correct when both chemical attack and abrasive wear are present simultaneously at moderate flow.
RLC vs FLC - Rubber Lined vs Fluoropolymer Lined
RLC uses rubber lining on cast iron for acid slurries, abrasive duty, and moderate chemical service: 10-40 M³/hr, up to 20 m head, solids to 3 mm. FLC uses fluoropolymer lining for the most aggressive corrosive or toxic media at temperatures up to 200°C, capacity up to 200 M³/hr, and head up to 100 MWC.
View FLC SeriesRLC vs HPP - Rubber Lined vs Full Polymer
HPP uses solid PP, PVDF, or UHMWPE construction for larger acid and chemical flows up to 180 M³/hr. Choose HPP for larger pure acid flow. Choose RLC for abrasive acid slurry where rubber absorbs particle impact.
View HPP SeriesRLC vs BPC - Rubber Lined Slurry vs DIN/ISO Chemical Process
BPC is a back pull-out metallic pump for large chemical and process duty. RLC handles smaller flows where rubber lining is the correct chemical barrier for abrasive acid slurry.
View BPC SeriesRLC vs SCC - Rubber Lined Slurry vs Stainless Process
SCC is for clean chemical, process, and water duty. RLC rubber lining handles corrosive acids and abrasive slurries that would rapidly corrode or erode stainless construction.
View SCC SeriesQuote checklist
Get a Quote for the RLC Series
Share your liquid, solids, flow, and head. Shaft and sleeve will be confirmed before quotation - Kuha, Ahmedabad, Gujarat since 1987.
Send RLC RequirementShare These Details
- Liquid name and chemical type
- Concentration (%) and pH if known
- Solids - particle size (mm) if present
- Temperature - operating and maximum
- Flow rate required (M³/hr)
- Head required (metres)
- Shaft preference (EN-9 / SS316)
- Sleeve preference (Alloy-20 / Ceramic / FRP)
- Drive (coupling / V-belt)
- Quantity
Related Pump Series
Other Pump Series from Shubham Industries
Fluoropolymer Lined Chemical Pump
Most aggressive media, PTFE-equivalent, up to 200°C
View Series
Horizontal Polypropylene Process Pump
Larger acid flow with PP/PVDF construction
View Series
Back Pull-Out Chemical Pump
DIN/ISO chemical duty and larger process flow
View Series
Stainless Steel Centrifugal Pump
Clean chemical and process liquid duty
View Series
Self Priming Automatic Pump
Compact self-priming water and utility duty
View SeriesCommon Questions
Frequently Asked Questions - RLC Series Rubber Lined Chemical Pump
A rubber lined pump is a centrifugal pump where all surfaces in contact with the pumped liquid are coated with a continuous bond of rubber on a cast iron structural base. The rubber acts as a chemical barrier between the corrosive liquid and the cast iron while the cast iron provides mechanical strength and rigidity.
About the Manufacturer
Shubham Industries is an industrial pump manufacturer located in Kuha, Ahmedabad, Gujarat, India. Established in 1987, the ISO 9001:2015 certified company has delivered over 45,000 pumping units across the Indian subcontinent. Specializing in centrifugal pumps, chemical polypropylene pumps, and positive displacement lobe pumps, Shubham Industries engineers fluid handling solutions for chemical, pharmaceutical, water treatment, and food processing industries. Every pump is dispatched with a hydrostatic test certificate from the Ahmedabad facility.