Milton Roy PRIMEROYAL Model PQ API675 Metering Pump

Name: Milton Roy PRIMEROYAL Model PQ API675 Metering Pump
Brand: Milton Roy

PRIMEROYAL PQ: max 8,657 L/h simplex, up to 1,035 bar; plunger force 3,500 daN, stroke 63 mm. P4(NX) plunger, HX/HPD PTFE and MX metallic diaphragm liquid ends.

Max flow

max. 8,657 L/h (single head)

Max pressure

max. 1,035 bar

Turndown / accuracy

rated flow 10%–100% range inside ±1%

Wetted materials

—

Protection

—

Power

—

Inquire Now Download datasheetxiongxiaoyang55@gmail.com

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

Features

API 675 compliant; API 674 in fixed-stroke configuration
Compact variable eccentric drive; capacity adjustable running or stopped
Vertical or horizontal motor; manual or electric stroke control
Liquid ends: packed plunger, PTFE double diaphragm, metallic double diaphragm
Multiplexable; ATEX motor options
Modular design for demanding industrial processes

Specifications

Flow	max. 8,657 L/h (single head)
Max pressure	max. 1,035 bar
Plunger force	3,500 daN
Stroke length	63 mm
Ambient	standard −10~+55°C; low −40~+55°C
Liquid ends	plunger P4(NX); PTFE double diaphragm HX/HPD; metal double diaphragm MX
Accuracy	rated flow 10%–100% range inside ±1%
Brand	m Milton Roy
Standard	API 675

Applications

Oil & Gas: wellhead methanol / hydrate inhibitor injection (onshore & offshore)

Midstream: corrosion inhibitor dosing for oil & gas transport

Downstream: chemical dosing for refining / product treatment

Produced water: hypochlorite, biocides, scale inhibitors, oxygen scavengers

Chemical / petrochemical: polyethylene polymerization catalyst dosing

Power: high-pressure boiler feedwater treatment

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
PQ-P4-NX-Ø20	166 L/h @10 bar；100 L/h @Pmax	1,000 bar	plunger liquid end P4(NX); Ø20; SV 19.8 cm³; 146 spm / 1440 rpm
PQ-P4-NX-Ø25	260 L/h @10 bar；187 L/h @Pmax	707 bar	Ø25；SV 30.9 cm³
PQ-P4-NX-Ø28	326 L/h @10 bar；253 L/h @Pmax	563 bar	Ø28；SV 38.8 cm³
PQ-P4-NX-Ø32	426 L/h @10 bar；354 L/h @Pmax	431 bar	Ø32; SV 50.7 cm³; 1″ NPT
PQ-HX-Ø32	421 L/h @10 bar；273 L/h @Pmax	400 bar	PTFE double diaphragm H5(HX); Ø32; SV 50.7 cm³
PQ-HX-Ø35	504 L/h @10 bar；361 L/h @Pmax	364 bar	PTFE double diaphragm H5(HX); Ø35
PQ-HPD-Ø40	789 / 620 L/h	279 bar	PTFE double diaphragm H1–H4(HPD); Ø40; 175 spm
PQ-HPD-Ø70	2,418 / 2,261 L/h	90 bar	HPD；Ø70；SV 242.5 cm³
PQ-HPD-Ø100	4,117 / 4,003 L/h	44 bar	HPD；Ø100
PQ-HPD-Ø145	8,657 / 8,579 L/h	21 bar	HPD; Ø145; max flow point 8,657 L/h @10 bar
PQ-MX-Ø20	191 / 126 L/h	1,035 bar	metal double diaphragm M2(MX); Ø20; max. pressure point 1,035 bar
PQ-MX-Ø32	489 / 410 L/h	435 bar	MX；Ø32