The Fabricated SS Chamber
A fabricated SS-304 or SS-316 sheet chamber stays filled between pump cycles, creating the liquid reserve needed for automatic restart without priming by hand.
SPF Series
Self Priming Fabricated Pumpwith Stainless Steel Priming Chamber
Fabricated SS-304 / SS-316 chamber \u00B7 No foot valve required \u00B7 Flap NRV for dirty liquid \u00B7 Disc NRV for clear liquid \u00B7 Up to 500 M\u00B3/hr
The SPF Series from Shubham Industries, Ahmedabad, is a self-priming centrifugal pump built around a custom-fabricated SS-304 or SS-316 chamber that retains liquid between shutdown and restart. This chamber, combined with the correct non-return valve and impeller selection, lets the pump self-prime without a foot valve or external priming arrangement. Round or square chamber formats, disc or flap NRV, and closed, semi-open, or open impeller options allow the SPF to cover clean liquid, dirty water, mud, sanitary, sticky, and chemical transfer duties. The published range covers capacities up to 500 M³/hr, heads from 3 m to 76 m, and delivery sizes from 12 mm to 100 mm, in monoblock or bare-pump construction. All wetted parts are fabricated from SS-304 or SS-316 sheet. Manufactured at Kuha, Ahmedabad, Gujarat, ISO 9001:2015 certified since 1987.
Capacity
Up to 500 M³/hr
Head
3 m to 76 m
Size
12 mm to 100 mm
MOC
SS-304 / SS-316 sheet
SPF self-priming proof
- Mechanism
- SS chamber + NRV
- Capacity
- Up to 500 M³/hr
- Head
- 3 m to 76 m
- MOC
- SS-304 / SS-316 sheet
How It Works
How the SPF SS Fabricated Chamber Enables Self-Priming Without a Foot Valve
A standard centrifugal pump cannot self-prime once the suction line empties. The SPF Series solves this by placing a fabricated stainless-steel chamber between the suction inlet and the pump casing. That chamber retains liquid between shutdown and restart, so the pump can draw from the stored liquid and re-establish prime without a foot valve or manual filling.
Flap vs Disc NRV
Flap NRV is selected for dirty or solids-bearing liquid because it resists clogging. Disc NRV is selected for crystal clear liquid where tighter sealing improves priming efficiency.
Closed, Semi-Open, or Open Impeller
Closed impeller suits clean fluids, semi-open handles light solids, and open impeller supports mud or heavier suspended solids in fabricated stainless duty.
CONFIGURE SPF SERIES
Configure Your SPF Self Priming Fabricated Pump Requirement
Use this requirement builder to define fluid, suction condition, fabricated chamber arrangement, and installation details before engineering selection.
Available Arrangements
SPF Self-Priming Fabricated Supply Options
SPF arrangements are selected around fluid cleanliness, suction condition, fabrication layout, and cleaning access.
Standard SPF Fabricated Pump
Surface-mounted SPF pump with fabricated stainless steel priming chamber for self-priming duty without foot valve maintenance.
Monoblock Flange Connection SPF
Integrated motor-pump arrangement with fabricated chamber and flange connection for compact plant utility installation.
Monoblock SPF
Monoblock stainless self-priming arrangement where compact footprint and straightforward installation are required.
Main Fabricated Chamber SPF
Main fabricated chamber arrangement showing the stainless reservoir concept that enables self-priming restart without a foot valve.
Chamber format illustration
Round / Square Chamber Option
Round and square chamber formats are engineered to suit capacity, suction length, and installation space.
Openable chamber option
Openable Chamber Option
Openable chamber arrangement is used where sanitary cleaning or sticky material removal is required between batches.
Technical Specifications
SPF Series Technical Specifications
The SPF Series covers self-priming stainless fabricated duty up to 500 M\u00B3/hr with 3 m to 76 m head. Chamber size, NRV type, and impeller are engineered around suction length, flow, and liquid condition.
| Parameter | Value |
|---|---|
| Capacity (max) | Up to 500 M³/hr |
| Head range | 3 m to 76 m |
| Delivery size | 12 mm to 100 mm |
| Chamber MOC | SS-304 / SS-316 fabricated sheet |
| Wetted parts | All SS-304 / SS-316 fabricated sheet |
| Chamber shape | Round / Square |
| NRV type | Flap for dirty / solids fluid; Disc for crystal clear fluid |
| Impeller | Closed / Semi-open / Open |
| Configuration | Monoblock / Bare pump |
| Openable chamber | Available for sanitary and sticky fluids |
| Hydraulic test | 10 bar standard; 1.5x shutoff pressure if higher required |
| Foot valve | Not required |
| Certification | ISO 9001:2015 |
Chamber size depends on capacity and suction length. Confirm fluid, flow, head, suction condition, and chemical compatibility before final SPF selection.
Applications
Where the SPF Series Self-Priming Pump Is Used
The SPF Series is selected where a foot valve is not wanted, suction conditions are difficult, or stainless fabricated wetted parts are preferred over cast self-priming designs.
Chemical Industry
Self-priming transfer of chemical process liquid where stainless fabricated wetted parts and no foot valve maintenance are preferred.
Food, Dairy, and Sanitary Duty
Openable chamber version for hygienic transfer where frequent internal cleaning is required between products or process runs.
Dirty Water and Mud Pumping
Flap NRV with semi-open or open impeller for dirty water, sludge, mud, and suspended solids where standard clear-liquid self-priming pumps are not suitable.
Agriculture and Irrigation
Surface-mounted self-priming water lifting where foot valve fouling and suction-side maintenance are repeated site problems.
Pharmaceutical and Clean Process
Crystal clear liquid transfer with disc NRV and fabricated stainless construction where cleanability and suction reliability matter.
Textile, Dyeing, and Sticky Fluids
Dye solution, process fluid, and sticky material transfer with openable chamber access for maintenance and cleanup.
When SPF May Not Be the Right Choice
For hot oil or thermic fluid, specify TFC. For highly viscous fluids above the practical centrifugal range, specify LBX or PCS. For submerged installation below the water surface, specify OWS. For very high flow above 500 M³/hr, specify SCH. Chemical compatibility with SS-304 or SS-316 must always be confirmed before final selection.
Selection Guide
SPF vs Other Self-Priming and Stainless Pump Series
SPF vs SCS / SCC
SCC and SCS are surface stainless centrifugal pumps that need flooded suction or a foot valve. SPF adds the fabricated self-priming chamber and NRV so the pump restarts without foot valve dependency.
View SCC SeriesSPF vs SPM / SPA
SPM and SPA are cast self-priming water-duty pumps. SPF is the fabricated stainless option where corrosion resistance, sanitary cleanability, or stainless duty is required.
View SPM SeriesSPF vs OWS
OWS is a submerged horizontal openwell pump installed below the water surface. SPF is a surface-mounted pump for suction-lift duty where no foot valve is wanted.
View OWS SeriesSPF vs PCS
SPF covers low to moderate viscosity self-priming centrifugal duty. For highly viscous or shear-sensitive transfer beyond centrifugal capability, PCS is the correct positive displacement selection.
View PCS SeriesQuote checklist
Get a Quote for the SPF Series
Share your fluid, suction conditions, and flow requirements. Final SPF chamber size, NRV type, and impeller are engineered based on flow, suction length, fluid cleanliness, and application.
Send SPF RequirementShare These Details
- Flow rate (M³/hr) and head (m)
- Fluid type and cleanliness
- Solids content or particle size
- Delivery size (mm)
- MOC (SS-304 / SS-316)
- NRV type (flap / disc)
- Impeller (closed / semi-open / open)
- Chamber shape (round / square)
- Openable chamber required
- Monoblock or bare pump
- Suction length and lift conditions
Related Pump Series
Other Pump Series from Shubham Industries
Self Priming Mud Series
Surface self-priming dirty-water and mud handling in cast construction
View Series
Stainless Steel Centrifugal Classic
Standard stainless centrifugal duty with flooded suction
View Series
Openwell Submersible Series
Horizontal submerged water-duty pump for open wells and tanks
View SeriesCommon Questions
Frequently Asked Questions - SPF Series
The SPF Series is a self-priming centrifugal pump built around a fabricated SS-304 or SS-316 chamber with an internal NRV that retains liquid between shutdown and restart. That retained liquid allows the pump to self-prime without a foot valve or manual priming.
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.