Milton Roy mRoy A & B Series Hydraulic Diaphragm Metering Pump

Name: Milton Roy mRoy A & B Series Hydraulic Diaphragm Metering Pump
Brand: Milton Roy

mRoy A&B hydraulic diaphragm pumps: simplex ~1.1–330.6 L/h (@7 bar / 100 psi, 50 Hz), duplex ~×2; metallic liquid ends up to ~137.9 bar (A/C), plastic ~10.3 bar; ±1% accuracy; API 675 / CE / ATEX.

Max flow

single head approx. 1.1–330.6 L/h (@7 bar, 50 Hz); 60 Hz approx. 1.4–321.7 L/h; double head flow approx. ×2

Max pressure

metal liquid end max. approx. 137.9 bar (A type Ø9.5 mm / 2000 psi); B type max. approx. 103.4 bar (1500 psi); plastic liquid end approx. 10.3 bar (150 psi)

Turndown / accuracy

±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

Hydraulically balanced PTFE diaphragm (~96,000 h design life); no plunger packing
Liquid-end bleed system for commissioning
Oil-bath worm drive; dust-tight cast iron housing
Micrometer capacity control; internal hydraulic relief valve
Metallic / non-metallic liquid ends; simplex / duplex
CE, ATEX and API 675

Specifications

Flow	single head approx. 1.1–330.6 L/h (@7 bar, 50 Hz); 60 Hz approx. 1.4–321.7 L/h; double head flow approx. ×2
Max pressure	metal liquid end max. approx. 137.9 bar (A type Ø9.5 mm / 2000 psi); B type max. approx. 103.4 bar (1500 psi); plastic liquid end approx. 10.3 bar (150 psi)
Accuracy	±1%
Turndown	>10:1 (class adjustment)
Diaphragm life	hydraulic diaphragm up to 96,000 small
Fluid temperature	metal liquid end up to approx. +90°C; plastic liquid end approx. +50°C (series)
Standard	API 675；CE；ATEX
Brand	m Milton Roy

Applications

Chemical & petrochemical dosing

Cooling towers & boilers

Drinking / industrial water & wastewater

Oil & gas, F&B, pharma, power

Materials & media

Diaphragm life

hydraulic diaphragm up to 96,000 small

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
mRoy A-C metal Ø9.5 mm	approx. 0.6–13.4 L/h (per; @ max. / rated)	max. 137.9 bar (2000 psi)	plunger code C; 50/60 Hz ratio; single head
mRoy A-D metal Ø11.1 mm	approx. 1.2–16.3 L/h	max. 124.1 bar (1800 psi)	plunger code D
mRoy A-E metal Ø15.9 mm	approx. 4.4–34.7 L/h	max. 63.8 bar (925 psi)	plunger code E
mRoy A-F metal Ø27 mm	approx. 17.3–110.8 L/h	24.1 bar (350 psi) or high 13.8 bar (200 psi)	plunger code F; single head max flow point
mRoy B-K metal Ø15.1 mm	approx. 10.4–51.7 L/h	max. 103.4 bar (1500 psi)	plunger code K
mRoy B-L metal Ø22.2 mm	approx. 14.8–118.2 L/h	max. 69 bar (1000 psi)	plunger code L
mRoy B-R metal Ø36.5 mm	approx. 66.2–330.6 L/h	max. 27.6 bar (400 psi)	plunger code R; series single head max flow point; double head ×2 (ratio double head pressure, see note)
mRoy A plastic liquid end	approx. 0.9–57 L/h class (depends on plunger /)	10.3 bar（150 psi）	PVC/PVDF/ application; pressure low metal
mRoy B plastic liquid end	approx. 30–330.6 L/h (@7 bar rated can to series max.)	10.3 bar（150 psi）	PVC/PVDF; double head ×2