Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

LIQUIDYNAMICS INC. Air Drum Pump: Stub Pump, 5:1, 4 gpm Max. Flow Rate - Standard Dispensing Piston Drum Pumps
LIQUIDYNAMICS INC.Standard Dispensing Piston Drum Pumps

LIQUIDYNAMICS INC. Air Drum Pump: Stub Pump, 5:1, 4 gpm Max. Flow Rate

The LIQUIDYNAMICS INC. Standard Dispensing Piston Drum Pump (SKU 3G-OTH-89544, MPN 21100T-S2) is an air-operated stub pump with a 5:1 ratio, a maximum flow rate of 4 gpm, and a maximum viscosity handling of 14,000…

SKU 3G-OTH-89544

Also listed as: 21100TS2 · 21100T S2

Brand
LIQUIDYNAMICS INC.
Item
Air Drum Pump: Stub Pump, 5:1, 4 gpm Max. Flow Rate
Category
Standard Dispensing Piston Drum Pumps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

LIQUIDYNAMICS INC.
Manufacturer Part Number
21100T-S2
Type
14,000 cps Max. Viscosity
Air Drum Pump
Stub Pump
Max. Flow Rate
4 gpm
Suction Tube Material
Steel

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

LIQUIDYNAMICS INC. Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LIQUIDYNAMICS INC. Standard Dispensing Piston Drum Pump (SKU 3G-OTH-89544, MPN 21100T-S2) is an air-operated stub pump with a 5:1 ratio, a maximum flow rate of 4 gpm, and a maximum viscosity handling of 14,000 cps. It features a steel suction tube.

Frequently Asked Questions

What is the LIQUIDYNAMICS INC. Air Drum Pump used for?

This air-operated stub pump is designed for transferring medium-viscosity fluids from drums or containers. It is commonly used in industrial fluid handling applications such as lubricant dispensing, chemical transfer, and paint circulation where a 5:1 pressure ratio and steel suction tube are required.

What are the specifications of the LIQUIDYNAMICS INC. Air Drum Pump MPN 21100T-S2?

The LIQUIDYNAMICS INC. stub pump has a 5:1 ratio, maximum flow rate of 4 gpm, and handles viscosities up to 14,000 cps. It features a steel suction tube. The manufacturer part number is 21100T-S2, and the SKU is 306V11.

Where to buy the LIQUIDYNAMICS INC. Air Drum Pump worldwide?

3G Electric supplies the LIQUIDYNAMICS INC. Air Drum Pump MPN 21100T-S2 to global customers. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install a LIQUIDYNAMICS INC. Air Drum Pump?

Ensure the pump is securely mounted to the drum bung opening. Connect the air supply to the motor inlet, adjusting pressure to the recommended 5:1 ratio. Verify the steel suction tube is fully immersed in fluid. Follow standard pneumatic pump installation practices for safe operation.

Used in

Common applications for LIQUIDYNAMICS INC.
Fleet maintenance — Liquidynamics electric drum pump (MPN DT15H20XAPXXRSV) for DEF dispensing from 55-gallon drums
Industrial fluid transfer — Liquidynamics air-operated piston pump (MPN 21100-S7) for high-viscosity lubricants
Tote-based DEF dispensing — Liquidynamics tote-mount system (MPN 970027-02AG) with digital meter for 330-gallon containers
Mobile DEF refueling — Liquidynamics 12 V DC drum pump (MPN 33115-S2AG) for service trucks
Replacement parts — Liquidynamics HDPE suction tube (MPN 195206-46) for DEF pump maintenance
Filter replacement — Liquidynamics fuel filter kit (MPN 70170) for DEF dispensing system upkeep

LIQUIDYNAMICS INC. Products

3G Electric supplies LIQUIDYNAMICS INC. standard dispensing piston drum pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories Valves & Regulation Motors & Drives All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Tank (MPN TS20R25ENQRAB1)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Tank (MPN TS20R25ENQRAB1)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Tank (MPN TS20R25ENQRAB2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Tank (MPN TS20R25ENQRAB2)
LIQUIDYNAMICS INC. Electric Drum Pump: 115 V AC, 1 hp HP, 316 Stainless Steel, 30 gpm Max. Flow Rate (MPN 33295P-S4)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Electric Drum Pump: 115 V AC, 1 hp HP, 316 Stainless Steel, 30 gpm Max. Flow Rate (MPN 33295P-S4)
LIQUIDYNAMICS INC. Air Drum Pump: Cart, 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Tank (MPN M9P20R25ENRM)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: Cart, 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Tank (MPN M9P20R25ENRM)

More from LIQUIDYNAMICS INC.

View all LIQUIDYNAMICS INC. parts
LIQUIDYNAMICS INC. Air Drum Pump: 1:1, 4 gpm Max. Flow Rate, 9,000 cps Max. Viscosity, Steel (MPN 32099-S6)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 1:1, 4 gpm Max. Flow Rate, 9,000 cps Max. Viscosity, Steel (MPN 32099-S6)
LIQUIDYNAMICS INC. Air Drum Pump: 5:1, 4.6 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN 970011-30)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 5:1, 4.6 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN 970011-30)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOB27R50ENQRAFR2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOB27R50ENQRAFR2)
LIQUIDYNAMICS INC. Air Drum Pump: 5:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN 21100-S8)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 5:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN 21100-S8)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOA27R50ENQRAFR2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOA27R50ENQRAFR2)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOA22R25ENQRAFR2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOA22R25ENQRAFR2)
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOB22R25ENQRAFR2)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 3:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN TOB22R25ENQRAFR2)
LIQUIDYNAMICS INC. Air Drum Pump: 5:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN 21100-S7)
LIQUIDYNAMICS INC.
LIQUIDYNAMICS INC. Air Drum Pump: 5:1, 4 gpm Max. Flow Rate, 14,000 cps Max. Viscosity, Steel (MPN 21100-S7)