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

LMI PUMPS Chemical Metering Pump: Solenoid, 115V AC, PVC Head, PTFE Diaphragm - Compact Solenoid-Driven Diaphragm Metering Pumps
LMI PUMPSCompact Solenoid-Driven Diaphragm Metering Pumps

LMI PUMPS Chemical Metering Pump: Solenoid, 115V AC, PVC Head, PTFE Diaphragm

The LMI PUMPS Chemical Metering Pump is a compact solenoid-driven diaphragm metering pump (MPN E731-418SI) with a PVC head, PTFE diaphragm, and a max flow rate of 8 gpd. It operates on 115V AC and features a…

SKU 3G-OTH-84182

Also listed as: E731418SI · E731 418SI

Brand
LMI PUMPS
Item
Chemical Metering Pump: Solenoid, 115V AC, PVC Head, PTFE Diaphragm
Category
Compact Solenoid-Driven Diaphragm Metering 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

LMI PUMPS
Manufacturer Part Number
E731-418SI
Type
PVC Head, PTFE Diaphragm, 8 gpd Max. Flow Rate
AC
115V
Seal Material
PVDF/Polyprel
Reproducibility
±1.0%
Fitting Material
PVC
Nameplate Voltage
115V AC
Diaphragm Material
PTFE
Check Ball Material
Ceramic

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

LMI PUMPS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LMI PUMPS Chemical Metering Pump is a compact solenoid-driven diaphragm metering pump (MPN E731-418SI) with a PVC head, PTFE diaphragm, and a max flow rate of 8 gpd. It operates on 115V AC and features a reproducibility of ±1.0%. Key materials include PVDF/Polyprel seals, ceramic check balls, and PVC fittings.

Frequently Asked Questions

What is the LMI PUMPS Chemical Metering Pump E731-418SI used for?

This compact solenoid-driven diaphragm metering pump is used for precise chemical dosing in water treatment, industrial processing, and chemical injection applications. It handles aggressive fluids with its PVC head, PTFE diaphragm, and ceramic check balls, delivering a reproducible flow of ±1.0%.

What are the specifications of the LMI PUMPS E731-418SI?

The LMI PUMPS E731-418SI operates on 115V AC, has a max flow rate of 8 gpd, and uses a PVC head with a PTFE diaphragm. It features PVDF/Polyprel seals, ceramic check balls, PVC fittings, and a reproducibility of ±1.0%. The diaphragm material is PTFE.

Where to buy the LMI PUMPS E731-418SI worldwide?

You can source the LMI PUMPS E731-418SI through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this compact solenoid-driven metering pump.

How to install the LMI PUMPS solenoid metering pump?

Install the pump on a stable surface near the chemical source, ensuring proper suction and discharge line connections. Use compatible PVC fittings and check valve orientation per the manual. Prime the head before startup and verify electrical supply matches the 115V AC nameplate voltage.

Used in

Common applications for LMI PUMPS
Water treatment — LMI PUMPS B111 series for chlorine dosing in municipal water disinfection systems
Cooling tower chemical feed — LMI PUMPS C741 series for injecting corrosion inhibitors and biocides
Boiler water treatment — LMI PUMPS PD051 series for precise caustic and phosphate dosing
Wastewater disinfection — LMI PUMPS B741 series for sodium hypochlorite metering in effluent treatment
Industrial process chemical injection — LMI PUMPS C111 series for acid dosing in metal finishing baths
Chemical manufacturing — LMI PUMPS PD741 series for polymer addition in batch processing

LMI PUMPS Products

3G Electric supplies LMI PUMPS compact solenoid-driven diaphragm metering 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
Compact solenoid-driven diaphragm metering pump with PVC head and PTFE diaphragm. Operates at 115V AC with a maximum flow rate of 8 gpd and reproducibility of ±1.0%. Features ceramic check balls, PVDF/Polyprel seals, and PVC fittings. Suitable for precise chemical dosing in water treatment and industrial processing applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVC head and PTFE diaphragm. Operates at 115V AC with a maximum flow rate of 8 gpd and reproducibility of ±1.0%. Features ceramic check balls, PVDF/Polyprel seals, and PVC fittings. Suitable for precise chemical dosing in water treatment and industrial processing applications
This compact solenoid-driven diaphragm metering pump features a PVC head, PTFE diaphragm, and ceramic check balls. It delivers a maximum flow rate of 8 gpd at 115V AC with ±1.0% reproducibility. The pump is suited for precise chemical dosing in water treatment, industrial processing, and chemical injection systems
LMI PUMPS
This compact solenoid-driven diaphragm metering pump features a PVC head, PTFE diaphragm, and ceramic check balls. It delivers a maximum flow rate of 8 gpd at 115V AC with ±1.0% reproducibility. The pump is suited for precise chemical dosing in water treatment, industrial processing, and chemical injection systems
LMI PUMPS Chemical Metering Pump: Solenoid, 115V AC, PVC Head, PTFE Diaphragm, 8 gpd Max. Flow Rate (MPN E731-D18HI)
LMI PUMPS
LMI PUMPS Chemical Metering Pump: Solenoid, 115V AC, PVC Head, PTFE Diaphragm, 8 gpd Max. Flow Rate (MPN E731-D18HI)
LMI PUMPS Chemical Metering Pump: Solenoid, 115V AC, PVDF Head, PTFE Diaphragm, 8 gpd Max. Flow Rate (MPN E731-313SI)
LMI PUMPS
LMI PUMPS Chemical Metering Pump: Solenoid, 115V AC, PVDF Head, PTFE Diaphragm, 8 gpd Max. Flow Rate (MPN E731-313SI)
Compact solenoid-driven diaphragm metering pump with 115V AC nameplate voltage, PVC head, PTFE diaphragm, and PTFE seals. Delivers maximum flow rate of 20 gpd with ±1.0% reproducibility. Features ceramic check balls and PVC fittings. Used for precise chemical dosing in water treatment, industrial processing, and chemical injection systems
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with 115V AC nameplate voltage, PVC head, PTFE diaphragm, and PTFE seals. Delivers maximum flow rate of 20 gpd with ±1.0% reproducibility. Features ceramic check balls and PVC fittings. Used for precise chemical dosing in water treatment, industrial processing, and chemical injection systems
Compact solenoid-driven diaphragm metering pump with 115V AC nameplate voltage. Features a PVC head, PTFE diaphragm and seals, ceramic check balls, and PVC fittings. Delivers a maximum flow rate of 20 gpd with ±1.0% reproducibility. Suitable for precise chemical dosing in water treatment, industrial processing, and chemical injection applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with 115V AC nameplate voltage. Features a PVC head, PTFE diaphragm and seals, ceramic check balls, and PVC fittings. Delivers a maximum flow rate of 20 gpd with ±1.0% reproducibility. Suitable for precise chemical dosing in water treatment, industrial processing, and chemical injection applications

More from LMI PUMPS

View all LMI PUMPS parts
Compact solenoid-driven diaphragm metering pump with an Acrylic/PP head, PTFE diaphragm, and FKM seals. Operates at 115V AC with ±1.0% reproducibility. Features ceramic check balls and Acrylic/PP fittings. Suitable for precise chemical dosing in water treatment and industrial processing applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with an Acrylic/PP head, PTFE diaphragm, and FKM seals. Operates at 115V AC with ±1.0% reproducibility. Features ceramic check balls and Acrylic/PP fittings. Suitable for precise chemical dosing in water treatment and industrial processing applications
Compact solenoid-driven diaphragm metering pump with PVDF head, PTFE diaphragm, and ceramic check balls. Operates on 115V AC with PVDF fittings and PVDF/PTFE seals. Reproducibility of ±1.0%. Suitable for precise chemical dosing in water treatment and industrial processing applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVDF head, PTFE diaphragm, and ceramic check balls. Operates on 115V AC with PVDF fittings and PVDF/PTFE seals. Reproducibility of ±1.0%. Suitable for precise chemical dosing in water treatment and industrial processing applications
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, ceramic check balls, Polyprel seals, and PVC fittings. Operates at 115V AC with a maximum flow rate of 96 gpd and reproducibility of ±1.0%. Suitable for precise chemical dosing in water treatment, industrial processing, and chemical injection applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, ceramic check balls, Polyprel seals, and PVC fittings. Operates at 115V AC with a maximum flow rate of 96 gpd and reproducibility of ±1.0%. Suitable for precise chemical dosing in water treatment, industrial processing, and chemical injection applications
This compact solenoid-driven diaphragm metering pump operates on 115V AC and features a 316 stainless steel head, PTFE diaphragm, and 316 SS check balls, fittings, and seals. It provides a reproducibility of ±1.0%. Typical applications include precise chemical dosing in water treatment, industrial processing, and chemical injection systems
LMI PUMPS
This compact solenoid-driven diaphragm metering pump operates on 115V AC and features a 316 stainless steel head, PTFE diaphragm, and 316 SS check balls, fittings, and seals. It provides a reproducibility of ±1.0%. Typical applications include precise chemical dosing in water treatment, industrial processing, and chemical injection systems
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, and thermoplastic body. Operates on 115V AC with ceramic check balls, PVC fittings, and Polyprel seal. Reproducibility ±1.0%. Suitable for precise chemical dosing in water treatment and industrial processing
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, and thermoplastic body. Operates on 115V AC with ceramic check balls, PVC fittings, and Polyprel seal. Reproducibility ±1.0%. Suitable for precise chemical dosing in water treatment and industrial processing
Compact solenoid-driven diaphragm metering pump with PVDF head and PTFE diaphragm. Operates on 115V AC, delivers up to 8 gpd with ±1.0% reproducibility. Features PVDF/PTFE seals, PVDF fittings, and ceramic check balls. Suitable for precise chemical dosing in water treatment and industrial processing
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVDF head and PTFE diaphragm. Operates on 115V AC, delivers up to 8 gpd with ±1.0% reproducibility. Features PVDF/PTFE seals, PVDF fittings, and ceramic check balls. Suitable for precise chemical dosing in water treatment and industrial processing
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, and thermoplastic body. Operates on 115V AC with ±1.0% reproducibility. Features ceramic check balls, PVDF/Polyprel seals, and PVC fittings. Suitable for precise chemical dosing in water treatment, industrial processing, and chemical injection applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, and thermoplastic body. Operates on 115V AC with ±1.0% reproducibility. Features ceramic check balls, PVDF/Polyprel seals, and PVC fittings. Suitable for precise chemical dosing in water treatment, industrial processing, and chemical injection applications
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, and ceramic check balls. Operates on 115V AC with PVDF/Polyprel seals and PVC fittings. Reproducibility of ±1.0%. Suitable for precise chemical dosing in water treatment and industrial processing applications
LMI PUMPS
Compact solenoid-driven diaphragm metering pump with PVC head, PTFE diaphragm, and ceramic check balls. Operates on 115V AC with PVDF/Polyprel seals and PVC fittings. Reproducibility of ±1.0%. Suitable for precise chemical dosing in water treatment and industrial processing applications