Efficiency and Accuracy | Proteus Pumps ERC

The PROTEUS® ERC series metering pump features a variable-speed stepper motor for industry-leading accuracy and reliability. Available in Manual, Enhanced, and Communications models, it offers seamless process control, a backlit display, multi-language support, and remote operation. Communication options include Profibus DP and Modbus RTU.

Material (liquid end): 316SS / PVC / PVDF / PP
Pressure max: 150 psi / 10 bar (both metallic and plastic liquid end)
Flow max: 53 gph / 200.6 lph (both metallic and plastic liquid end)
Flow variation control: Manual

Easy Setup & Customization

Backlit Color Display with Intuitive Interface

Simplify operation with an easy-to-use interface and bright backlit display, making setup, adjustments, and customization quick and user-friendly.

Flexible Control for Any Application

Advanced Input/Output and Control Options

Designed to meet demanding application requirements with a wide variety of control and I/O configurations for maximum system compatibility.

Universal Power Compatibility

100–240V Universal Power Supply

Operate your pump virtually anywhere with a flexible universal power supply supporting 100–240V and 50/60 Hz power standards.

Global-Friendly Multi-Language Navigation

Convenient Operation Worldwide

Built-in multilingual navigation — including English, French, Spanish, Portuguese, and Chinese — ensures easy operation across global facilities.

Precision Performance for Difficult Chemicals

Superior ±1% Accuracy with 1000:1 Turndown Ratio

Innovative drive technology delivers exceptional dosing accuracy and flexibility, even when handling challenging or variable chemical applications.

Durable Construction for Harsh Environments

Rugged, Reliable, and Easy to Maintain

Features chemically resistant liquid-end materials, mechanically actuated diaphragms, and NEMA 4X/IP65 protection for long-lasting performance in demanding environments.

Expanded Features:

Maximum flow range from 5.6- 53 GPH (21.2 - 200 LPH) available for added control over your process with 1000:1 turndown ratio.
Effective metering range from .006 GPH (.023 LPH) up to 53 GPH (200 LPH) depending on model
StayPrime™ Degassing Technology mitigates the risk of losing prime by automating a priming cycle after a preset amount of pump idle time.
Alarm Log to keep track of the date and time when any alarms occur.
Digital Input Configuration more flexible with a user defined option for accessories

PROTEUS series flow rates extend from 0.006 to 53 GPH (0.023 to 200.6 l/hr)

Mechanically actuated diaphragm for years of reliable service

+/- 1% steady state accuracy over 1000:1 turndown ratio

Turndown Ratio:	Up to 1000:1
Steady State Accuracy:	+/- 1.0%
Repetitive Accuracy:	+/- 3.0%
Linearity:	+/- 3.0%
Duty Rating:	Continuous

Mounting Information

(All drive sizes)

DRIVE	LIQUID END	A		B		C		D
DRIVE	LIQUID END	INCH	[mm]	INCH	[mm]	INCH	[mm]	INCH	[mm]
ERBx4x, ERCx3x ERCx4x	“TUBE CONNECTIONS: CODE A44, A74”	1.44	36.7	2.03	51.7	4.09	103.9	7.25	184.2
	“DN PIPE CONNECTIONS: CODE A44, A74”	1.44	36.7	2.00	50.7	2.45	62.2	10.54	267.7
	“STAINLESS HEAD AND SLURRY HEAD: CODE A14, S14”	1.38	35.0	2.01	51.0	3.70	94.0	8.03	204.0
	“HIGH VISCOSITY HEAD: CODE V44”	1.61	40.8	2.30	58.3	4.32	109.8	7.63	193.7
ERBx4x ERCx3x ERCx4x	“NPT CONNECTIONS: CODE A46, A76”	2.33	59.3	2.96	75.3	3.45	87.6	8.58	218.0
	“TUBE CONNECTIONS: CODE A46, A76”	2.33	59.3	2.96	75.3	2.82	71.6	9.84	250.0
	“DN PIPE CONNECTIONS: CODE A46, A76”	2.33	59.3	3.13	79.5	2.05	52.1	11.38	289.0
	“STAINLESS HEAD AND SLURRY HEAD: CODE A16, S16”	2.42	61.4	3.28	83.4	2.98	75.6	9.49	241.0
	“HIGH VISCOSITY HEAD (NPT DISCHARGE): CODE V46”	2.33	59.3	2.95	74.9	3.73	94.8	8.30	210.8
	“HIGH VISCOSITY HEAD (TUBE DISCHARGE): CODE V46”	2.33	59.3	2.95	74.9	3.73	94.8	8.93	226.8

Note: Tube connections A46 and A76 aren’t available on ERC, neither is the V46 high viscosity tube option.

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The Intelligent Metering Pump | PROTEUS™ ERC

Why this product?

Easy Setup & Customization

Flexible Control for Any Application

Universal Power Compatibility

Global-Friendly Multi-Language Navigation

Precision Performance for Difficult Chemicals

Durable Construction for Harsh Environments

PROTEUS Performance Chart

Expanded Features:

Dimensions & Weight

Mounting Information

Connect With Our Experts

Applications

Water treatment

Waste water treatment

General industry

Agricultural

Chemical

Oil & gas

Power generation

Pulp & paper

Textiles

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Milton Roy's PROTEUS Metering Pump with STAYPRIME Technology

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