Air Sampler Parts and Spare Parts for PM10, PM2.5 and TSP Samplers

Air sampler parts decide whether a monitoring train stays within its method: an inlet sets the cut point, a filter holder sets the deposit area, a motor housing sets the flow, and a filter support keeps the disc flat while air passes through it. T4 AIR SAMPLER manufactures those parts ourselves in Foshan, from inlets and holders to brushless motors, volumetric flow controllers and filter consumables, so a replacement matches the sampler already on your network.

What Counts as an Air Sampler Part

An air sampling train is a chain, and every link has a job. The inlet selects the particle size fraction, the filter holder locates the filter so the deposit area is known, the motor and housing produce and stabilize the flow, the controller holds that flow for the whole period, and the filter captures the mass that is finally weighed. Spares are therefore not accessories: a worn gasket or a distorted filter support changes the result just as surely as a mis-set flow rate.

Because we make the metal parts ourselves, you can order a single component, a complete train or a matched spares set, all to the same drawings.

Parts, Models and Where They Fit

The table below lists the air sampler parts we manufacture and where each one belongs in the train.

The VFC volumetric flow controller is a Venturi tube with no moving parts, so nothing inside it can wear or drift out of adjustment over a long deployment. It is also why the VFC and MFC housings differ: each is sized to the controller it carries.

How to Identify the Right Spare Part

Start with the model number on the nameplate of the sampler or the control box, then confirm the filter format, since an 8 x 10 inch holder and a 47 mm holder are not interchangeable. Next check the mounting: thread size, bolt pattern and motor housing diameter, because the housing must accept the motor and the controller the cabinet was built around. A photograph with a ruler in frame usually settles the remaining doubt.

Matching the flow controller to the motor housing matters more than it appears. The Venturi in the controller is sized for a flow range and the housing is sized for that controller, so a mismatch produces a flow that cannot be set or that drifts between visits. Where the two are supplied as a set, keep them together.

For unmanned stations, the BLM-240 brushless motor is the usual choice. It produces 1200 W and airflow above 3.5 m3/min, runs for more than 7 days continuously, and has no carbon brushes to replace, so no brush dust collects inside the housing. The BM-240 and BM-120 brushed blowers at 1062 to 1080 W remain the economical option for attended sites.

Materials, Finish and Manufacturing

Air sampler parts are made from aluminum alloy and stainless steel, anodized or powder coated. Aluminum alloy is used where weight matters, such as housings and cabinet bodies, and stainless steel where a surface must resist corrosion and abrasive dust. Anodizing gives a hard, even finish that does not flake, and powder coating is used on parts that face the weather directly.

Machining tolerances are held because the aerodynamics of an inlet depend on them. A jet bore, a holder face or a Venturi throat that is out of specification will shift the cut point or the flow, and no amount of calibration will recover the original method. Parts are packed with the machined faces protected.

Installation, Calibration and Maintenance

Fit the moveable bracket or the mounting plate first and check that the sampler stands level, then assemble the train upwards from the housing to the inlet. Confirm that the filter support screen sits flat before the filter is laid on it, and that the snap cover or cartridge closes without pinching the disc. A filter that is buckled or unsupported will not deliver a reliable mass.

After assembly, leak check the train and calibrate the flow with a gas flow calibrator, using the aluminum calibrator housing CH-01 where the method calls for it. Record the flow, the ambient conditions and the part numbers used, so a later change can be traced to a component. During service, inspect gaskets and seals, clean the blower and housing, check the controller for damage, and renew the filter support screen if it has lost its flatness.

Applications and Industries

Spare parts and consumables are bought by very different customers, and the program usually explains what they need:

• Monitoring networks keeping a mixed fleet of samplers in calibration
• Environmental agencies placing bulk orders of filters and holders
• Integrators building complete trains around our housings and controllers
• Industrial sites replacing motors and gaskets during planned shutdowns
• Research groups specifying a cut point or a filter format for a study
• Distributors holding stock of the fast-moving spares

Tell us the sampler model and the problem you are trying to fix, and we will identify the part and confirm it with a drawing before you order.

Packing, Shipping and Lead Time

Most air sampler parts ship from stock, which keeps a repair or a scheduled service on schedule. Machined items are protected with foam inside individual cartons, and consumables such as 8 x 10 inch glass fiber paper, 47 mm glass fiber paper, 47 mm PTFE membrane paper with 1.0 micrometer pores and the 47 mm filter support screen are boxed flat. Filter paper takes about 7 days to prepare, so order it early rather than after the hardware arrives.

We ship by air for urgent spares and by sea for bulk orders, and we provide a packing list with weights and carton dimensions so freight and customs clearance can be planned.

OEM, ODM and How to Order

We supply air sampler parts as OEM components and as ODM projects. That can mean a private label on a housing, a holder machined to your drawing, a filter size outside our standard range, a different connector or power standard on a control box, or a complete kit packed under your own part numbers for onward sale.

To order, send the model number or a photograph with dimensions, the quantity and the destination. We will confirm the part, the finish and the lead time, and issue a drawing for approval on modified items.

Air Sampler Parts Available from T4 AIR SAMPLER

Snap Cover and Filter Paper Cartridge Set

Snap cover and filter paper cartridge set for high volume air sampler PM2.5 and PM10 work.

Filter and Motor Housing Set for PM10/PM2.5

Filter and motor housing set for high volume air sampler cabinets, electronics not included.

Filter and Motor Housing Set for TSP

TSP filter and motor housing set for outdoor air sampling equipment.

Blower Motor Housing for Mass Flow Air Sampler

Blower motor housing BMH01 for mass flow high volume air sampler, MFC type.

Blower Motor Housing for Volumetric Flow Air Sampler

Blower motor housing BMH02 for volumetric flow air sampler, VFC type.

Volumetric Flow Controller (Venturi Tube)

Volumetric flow controller with no moving parts, holding 1.13 m3/min in an air sampler.

VFC Filter and Motor Housing

VFC filter and motor housing set, matched to the Venturi tube for volumetric flow sampling.

PUF Inlet for High Volume Air Sampler

PUF inlet air sampler accessory for semi-volatile organic compound sampling.

Cabinet for Double Channel Low Volume Sampler

Low volume air sampler cabinet for a two channel sampling train, powder coated aluminum.

Moveable Bracket for Outdoor Air Sampler

Air sampler bracket that lets the inlet be repositioned or the unit moved between sites.

Connect Pipe for PM10-LV and PM2.5 Impactor

Connect pipe air sampler part that sets the correct distance between inlet and impactor.

Filter Holder for PM10-LV and PM2.5 Impactor

Low volume filter holder taking standard 47 mm discs with an O-ring seal.

Control Pump and Box for Low Volume Air Sampler

Air sampler pump and control box, 3 to 30 L/min, single or double channel, rechargeable battery.

Blower Motor 120V / 240V for Air Sampler

Air sampler blower motor, 1062-1080 W, in 120 V and 240 V versions.

Brushless Blower Motor for Air Sampler

Brushless blower motor with no carbon brushes, running continuously for more than 7 days.

Digital Flow Meter 1-100 LPM

Flow meter for air sampler, 1 to 100 LPM, for setting and checking the sampling rate.

Gas Flow Calibrator 3-30 LPM

Air sampler calibration instrument covering 300 mL/min to 30 L/min at 1 percent accuracy.

MFC Control Box for High Volume Air Sampler

Air sampler control box with 4000 W SCR adjuster and 7 day programmable timer, MFC type.

VFC Control Box for High Volume Air Sampler

VFC control box with SCR power adjuster and weekly timer for volumetric flow samplers.

Aluminum Calibrator Housing Set

Calibrator housing in anodized aluminum, protecting a flow calibrator in the field.

Glass Fiber Filter Paper 8 x 10 inch

PM10 filter paper, ultrafine glass fiber, 8 x 10 inch, 100 pieces per box.

Glass Fiber Filter Paper 47 mm

47 mm filter paper in ultrafine glass fiber, 100 discs per box for low volume samplers.

PTFE Membrane Filter Paper 47 mm

PTFE filter paper, binder-free membrane with 1.0 micrometre pores, 50 per box.

Filter Support 47 mm

Filter support screen that stops 47 mm filter discs sagging under vacuum.

Frequently Asked Questions