Pumps for Smooth Flow without Pulsation

High-Purity Laminar Flow Pumps for Advanced Chemical Processes

LHA030 pumps were discontinued July 7, 2021. Please upgrade to PSA060 pumps. LHA030 pumps will be supported for three years after discontinuation.

Specification Sheet

Ordering Instructions

LHA030 Ordering Instructions

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Overview

LHA Series laminar flow pumps offer steady flow rates up to 30 lpm and feature process-safe PTFE and PFA flow paths. They are capable of up to 100°C (212°F) fluid temperatures, 5.5 Bar (80 psi) air supply pressures, and suction lift up to 3 m (10 ft).

Features & Benefits

Laminar flow up to 30 lpm
Process-safe PTFE and PFA flow paths
No elastomer O-rings; never retorque
Reliable operation with leak-free seals
Analog signal stroke detection
Fiber optic and conductivity leak detect
Copolymer check cages minimize wear and extend life
Various liquid connection styles and sizes

Proven robust bellows technology
Air supply pressure up to 5.5 Bar (80 psi)
Dead-head capable operation
Suction lift up to 3 m (10 ft)
Minimal parts for durable design
Durable machined design
Easy to install and service
Class 100 cleanroom assembly, testing, and packaging
No preventative maintenance during two-year warranty

Performance

How to Read Pump Performance Charts

*Graph is for reference only. Performance was measured utilizing 1/2 in (3/8 in ID) air line and 1-1/4 in (1-1/8 in ID) liquid lines with 1 ft flooded suction. Performance may vary in your system.

Dimensions

Download LHA030 Dimensions (PDF)

Specifications

Model	LHA030
Flow Rate*	≤ 31 lpm (8.2 gpm)
Air Connection	1/4" FNPT
Fluid Temperature	≤ 100°C (212°F)
Supply Air Pressure	≤ 5.5 bar (80 psi)
Startup Air Pressure	≥ 1.4 bar (20 psi)
Required Air Volume	≥ 26 SCFM
Suction Lift*	3 m (10 ft)
Fluid Path Materials	PTFE, PFA
Non-Fluid Path Materials	PTFE, PFA, PP, Viton, Neodymium, PET-P, UHMW
Stroke Detection Options	Hall Effect Sensor (NPN or PNP)
Leak Detection Options	Fiber optic with or without sensor, or conductivity
Electronic Control	Call for details

Air Requirements
Air Signals	Two 5-way valves (center vent) or Four 3-way valves (normally closed)
Air Signals	Valves with metal seals are recommended for longer life

Electrical Requirements
24 VDC Power Power consumption depends on current draw on external devices: Controller power alone 4 watts Max Digital Output current (500 mA sourcing or 24 mA sinking) Max Analog Output current (10 mA total voltage output or 20 mA with 4-20 mA conversion board)

Pump Connections
Four air connections 1/4-in NPT with quick exhaust connectors (one fill and one dispense for each side Two leak detect sensor connections 1/4-in NPT (one for each side) Two fluid connections configurable to various tube connections (one inlet and one outlet) Two analog hall effect stroke sensing

Controller Connections
Digital Outputs	Four solenoid signals Two stroke rate signals (for tool feedback) Pump running signal (for tool feedback) Alarm output (for tool feedback)
Digital Inputs	Remote signal left Remote signal right Enable scaled output signal Retrain pump sensors Leak detect input Reset Alarms
Analog Inputs	Two stroke sensors

*May vary depending on configuration. Suction lift diminishes over time. Recommended installation level less than 3 ft above source. Contact White Knight for details.