Milton Roy Milroyal B Series High-Performance Hydraulic Diaphragm Metering Pump

Name: Milton Roy Milroyal B Series High-Performance Hydraulic Diaphragm Metering Pump
Brand: Milton Roy

Milroyal B high-performance hydraulic diaphragm pump: simplex up to 2,616 L/h and 250 bar; 10:1 turndown, ±1% accuracy; ball-and-socket drive with MARS refill; API 675, multiplexable.

Max flow

single head max. 2,616 L/h (Ø102 mm / 4″ @157 spm, approx. 3 bar duty)

Max pressure

250 bar

Turndown / accuracy

10:1

Wetted materials

—

Protection

—

Power

—

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Best for: verifying flow/pressure and control interfaces against your dosing duty (Metering Pump). Confirm chemical compatibility and install constraints before ordering — inquire for help.

Features

Simplex max 2,616 L/h, discharge pressure up to 250 bar
10:1 turndown, ±1% steady-state accuracy
Ball-and-socket drive; adjustable running or stopped
High-performance diaphragm head with MARS refill; integral relief/vent
Optional double-diaphragm leak detection, jackets, electric/pneumatic/VFD control
API 675; multiplex with independent head control

Specifications

Flow	single head max. 2,616 L/h (Ø102 mm / 4″ @157 spm, approx. 3 bar duty)
Max pressure	250 bar
Turndown	10:1
Accuracy	±1%
Stroke length	38.1 mm
Liquid ends	high-performance hydraulic diaphragm (316 / PVC / Alloy 20 / HC276 etc.)
Standard	API 675
Brand	m Milton Roy

Applications

High-pressure / high-flow petrochemical processes

Hazardous chemical injection and transfer

Onshore & offshore oil & gas skids

Power: furnace, condensate, circulating water, wastewater

Other critical industrial metering duties

Materials & media

Ask for wetted-parts details or check the brochure.

Common chemicals: NaOCl, acids, alkalis, polymers — confirm compatibility when inquiring.

Controls & communication

Control options are listed in notes or confirmed on inquiry.

Models & specs

Model	Flow	Pressure	Notes
MB-Ø11mm (7/16") @40 spm	6 L/h @14 bar；5 L/h @250 bar	250 bar	speed ratio 8K; 0.25–0.37 kW up to 250 bar
MB-Ø16mm (5/8") @157 spm	63 L/h @14 bar	max. approx. 240 bar (large motor)	speed ratio 8M
MB-Ø38mm (1-1/2") @157 spm	405 L/h @14 bar	max. approx. 34 bar (2.2 kW)	speed ratio 8M
MB-Ø64mm (2-1/2") @157 spm	1,003 L/h (approx. 3 bar)	max. approx. 11 bar	large flow; note (3) 3 bar max flow
MB-Ø89mm (3-1/2") @157 spm	2,089 L/h (approx. 3 bar)	max. approx. 7 bar	speed ratio 8M
MB-Ø102mm (4") @157 spm	2,616 L/h (approx. 3 bar)	max. approx. 5 bar	single head max flow point 2,616 L/h; speed ratio 8M