DM4B1AG-L

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DM4B1AG-L

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Pulsafeeder DM4B1AG-L GreenLine Mechanical Diaphragm Chemical Metering Pump with Leak Detection. 1 HP (Horsepower), 115/230V, 60 Hz, 1 Phase (1 Ph), TEFC Motor. 1" FNPT Connections and Composite PTFE Diaphragm. 41.2 GPH (Gallons Per Hour Maximum Flow, 32°F to 113°F Temperature Range, and 145 PSI Maximum Working Pressure.

$6,291.11

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Item: DM4B1AG-L

Overview
Series Info
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Repair Parts

DM4B1AG-L

Configuration	Leak Detection Option, With Motor: Double Diaphragm with Pressure Gauge and Switch (24VDC / 0.5 Amp Max)
Connection Size	1"
Connection Type	FNPT
Diaphragm	Composite PTFE
Head / Fittings	316 Stainless Steel
HP	1 HP
Hz	60 Hz
Includes	Four Bolt Tiebar
KW	0.75 kW
Material	Epoxy Painted Aluminum
Maximum Flow (GPH)	41.2 GPH (156 lph)
Maximum Pressure (PSI)	145 PSI (10 Bar)
Maximum Strokes Per Minute	116 SPM
Maximum Viscosity (CPS)	1000 cPs

Max Suction Lift	10 ft. (3m)
Model Series	DM4B
Motor Enclosure Type	TEFC - Totally Enclosed Fan Cooled
Motor Frame Size	NEMA 56 C
Phase	1 Ph (Single Phase)
Quick Specs	GLM,4B 3161.0 L 115/230
Temperature Range	32°F to 113°F (0°C to 45°C)
Turn Down Ratio	10:1
Type	Complete Pump
Valve / Seat / O-Ring	316 Stainless Steel Ball Valve / 316 Stainless Steel Seat / PTFE O-Rings
Voltage	115/230V
Wetted Parts	316 Stainless Steel

GreenLine Mechanical Diaphragm Chemical Metering Pumps Information

Features & Benefits

Why Choose the Pulsafeeder GreenLine (GLM) Series?

High-Performance Mechanical Diaphragm Pumps

The GreenLine (GLM) series represents the latest evolution in mechanical diaphragm technology. It is a compact, high-value solution designed for operators who demand low cost of ownership without sacrificing industrial-grade performance. Known for rugged construction and dependable performance, these pumps handle a wide range of flows and process chemicals.

Optimize Your Performance

Auto-Locking Precision: The 0-100% stroke range is adjusted in one complete revolution. The self-locking mechanism absolutely prevents gradual turning, allowing you to "adjust and walk away" with total peace of mind.

Contamination-Proof Gearbox: The fully sealed, non-vented gearbox design prevents the ingress of dust, moisture, and chemicals. Oversized shielded bearings and oil bath lubrication ensure a long service life even in dusty mining operations or humid chemical plants.

Advanced Drive & Gearbox

The GreenLine features a Never-Seize Motor Coupling, preventing the "welding" of the motor shaft to the gearbox—a common issue in humid or corrosive plants. The oil-bath lubrication ensures all moving parts are continuously protected, with an integrated sight glass for instant maintenance checks.

Leak Detection & Safety

For high-risk media, the Leak Detection Option provides a double-diaphragm barrier. If the primary diaphragm is breached, a pressure switch triggers an immediate alarm, protecting your personnel and the surrounding environment from exposure.

BlackLine to GreenLine Conversion

Upgrading from an older Pulsafeeder BlackLine pump? We offer a Conversion Kit that includes an adapter plate and hardware, allowing the GreenLine to fit into your existing bolt hole pattern and piping centerline with minimal modification.

Performance Specifications

Feature	Specification Details
Max Flow Rate	824 GPH (3,120 LPH)
Max Pressure	174 PSI (12 BAR)
Accuracy	+/- 2% of Set Point
Turndown Ratio	10:1
Suction Lift	10 ft (3m)
Housing Material	Epoxy Painted Aluminum
Wet End Materials	PVDF or 316L Stainless Steel
Diaphragm Material	Double-Sided PTFE Composite
Max Viscosity	1,000 cPs
Temperature Range	32°F – 113°F (0°C – 45°C)
Certifications	NSF/ANSI/CAN 61 & 372
Maintenance Kit	KOPkit® Preventive Maintenance

Typical Services & Ideal Applications

Typical Applications & Markets

The GreenLine is the workhorse for fluid movement across several critical sectors:

Water & Wastewater: Sodium Hypochlorite, PAC, Polymers, and pH control.
Power Generation: Boiler chemical feed and scale inhibitors.
Food & Beverage: Peracetic acid and cleaning agent dosing.
Industrial Process: Lithium battery production, petrochemicals, and dyes/inks.

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Type	Title		Link
	Pulsafeeder GreenLine Mechanical Diaphragm Chemical Metering Pumps Brochure		View
	Pulsafeeder GreenLine Mechanical Diaphragm Chemical Metering Pumps Technical Sheet		View
	Pulsafeeder GreenLine Mechanical Diaphragm Chemical Metering Pumps Conversion Kits Technical Sheet		View
	Pulsafeeder GreenLine Mechanical Diaphragm Chemical Meter Pumps DM1-DM6 Operator's Manual		View

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