Critical Process Control

The mRoy Series XA metering pump delivers precise, controlled-volume chemical dosing with a hydraulically-actuated PTFE diaphragm. Compact yet powerful, it ensures reliable, year-round performance with minimal maintenance. It's built to global standards and offers decades of durability for a wide range of fluid applications.

Material (liquid end): 316SS / PVC
Pressure max: 2,001 psi / 138 bar (metallic liquid end); 150 psi / 10 bar (plastic liquid end)
Flow max: 17 gph / 66 lph (both metallic and plastic liquid end)
Multiplex: Duplex only
Flow variation control: Manual / Remote
Certifications: API 675, EC, ATEX, IECEX

This product is not available in the US and India.

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Compact and cost-effective design

Can easily be integrated in a chemical injection package or a plug and play skid.

Easy Commissioning & Operation

Integrated liquid end bleed system ensures quick startup, while the oil-bath worm and pinion drive delivers smooth, reliable performance.

Durable Industrial Construction

Dust-tight cast iron housing protects internal components, making the pump ideal for harsh and demanding environments.

Precise Flow Control

Micrometer capacity adjustment allows accurate and consistent dosing for critical chemical injection applications.

Built-In Safety Protection

Internal hydraulic pressure relief valve prevents overpressure, safeguarding both the pump and process system.

Diaphragm Protection and Stress Reduction

The diaphragm is protected by contoured plates that control its movement and reduce mechanical stress, lowering the risk of rupture.

mROY XA - Plastic and Metallic liquid ends

Flow at 3 bar (l/h)	Plastic liquid end		316L stainless steel liquid end		Stroke speed (spm)	Plunger Ø (mm)	Diaphragm Ø (mm)	Swept volume (cm³⁾	3-phase motor (kW - rpm)
Flow at 3 bar (l/h)	Flow at max. pressure (l/h)	Max. pressure (barg)	Flow at max. pressure (l/h)	Max. pressure (barg)	Stroke speed (spm)	Plunger Ø (mm)	Diaphragm Ø (mm)	Swept volume (cm³⁾	3-phase motor (kW - rpm)
1.45 (Plastic) / 1.8 (316L SS)	1.45	10	1.1	138	29	9.52	71	1.28	0.25 - 1500
2.6	2.5	10	1.9	123	29	11.1	71	1.74	0.25 - 1500
3.6	-	-	2.2	138	58	9.52	71	1.28	0.37 - 3000
5.5	-	-	4	123	58	11.1	71	1.74	0.37 - 3000
5.5	5.3	10	4.8	59	29	15.9	101	3.57	0.25 - 1500
6.9	6.8	10	4.3	138	112	9.52	71	3.57	0.25 - 1500
10	9	10	8	123	112	11.1	71	1.74	0.25 - 1500
22	21	10	19	59	112	15.9	101	3.57	0.25 - 1500
44	43	10	39	31	112	22.2	101	6.96	0.25 - 1500
66	65	10	64	21	112	27	101	10.3	0.25 - 1500

Liquid end construction

COMPONENTS \ CONSTRUCTION	PVC ⁽¹⁾	316L⁽²⁾
Liquid end body	PVC	316L
Check valve cartridge	PVC	316L
Seats	PVC	316L
Balls	Glass	316L
Contour plate	PVC	316L
Diaphragm	PTFE	PTFE
Discharge ball spring	Hastelloy® C-276 alloy	316L
Seals	FKM	FKM

⁽¹⁾Pressure is limited to 10 bar at 20°C and pressure derated 1.1 bar / 5°C. Maximum operating temperature: 50°C

⁽²⁾Milton Roy Europe keeps an interchangeability table for national and international standards (AFNOR, DIN, ASTM, BS, etc).

OTHER LIQUID END MATERIAL

H2SO4 concentrated» version: 316L S.S. liquid end with seats in 904L and balls in Hastelloy C

"Viscous liquids" version: 316L S.S. liquid end with balls in 316L S.S. and spring in Hastelloy C
"Slurries" version: 316L S.S. liquid end with seats and balls in 440C
"Polyelectrolytes" version: PVC liquid end with seats and balls in 316L and spring in Hastelloy C
Other version on request: consult us

Simplex version - Metallic liquid end

MODELS	DIMENSIONS	CONNECTIONS
5,5 l/h⁽¹⁾ - 22 l/h 44 l/h - 66 l/h	A = 33 B = 173	Suction: 3/8" GAS F Discharge: 3/8" GAS F
1,8 l/h - 5,5 l/h⁽²⁾10 l/h	A = 41 B = 163	Suction: 3/8" GAS F Discharge: 3/8" GAS F

⁽¹⁾5,5 l/h at 59 bar - ⁽²⁾5,5 l/h at 123 bar

Simplex version - Plastic liquid end

MODELS	DIMENSIONS	CONNECTIONS
22 l/h - 44 l/h 66 l/h	A = 28 B = 170	Suction: 1/2" GAS F Discharge: 3/8" GAS F
1,45 l/h - 5,5 l/h 10 l/h	A = 25 B = 177	Suction: 1/2" GAS F Discharge: 3/8" GAS F