This Custom SS316L Sintered filter part starts with SS316L stainless steel powder. The powder is sintered into a round-ended cylinder, 20mm across and 45mm long. Pore size is 10μm, porosity 30%–35%. During sintering, micron-sized channels form across the body. The paths stay straight and consistent. When fluid enters, these interconnected passages break the incoming turbulent flow into an evenly distributed, low-resistance stream. Backed by the mechanical strength and thermal stability of SS316L, this element holds its original flow resistance and structural integrity across continuous production runs. Under aggressive operating conditions, the sintered structure prevents pore blockage and eliminates the risk of powder shedding, maintaining a stable pressure drop over time.

The distributor comes with a custom 44mm diameter flange with three evenly spaced 5.4mm mounting holes designed to bolt precisely onto your specific vessel or reactor bottom. Its standout feature is the integrated 4mm wide by 10mm deep pulling lug protruding from the flange face. In high-temperature, high-pressure environments where media buildup or O-ring adhesion usually makes extraction a struggle, this lug provides a reliable leverage point. Operators can firmly grip it to easily insert or pull the unit out for routine service. Since the flange diameter, hole spacing, and lug dimensions are fully customizable based on your equipment's physical constraints, we guarantee seamless alignment during installation and hassle-free access during scheduled downtime.

Product specifications

Parameter	Specification
Material	SS316L Stainless Steel Powder
Element Diameter	Φ 20 mm
Element Length	45 mm
Filter Rating	10 μm
Porosity	30% ~ 35%
Flange Outer Diameter	Φ 44 mm
Flange Mounting Holes	3 holes × Φ 5.4 mm (evenly spaced)
Pulling Lug Size	4 mm (W) × 10 mm (Protrusion Depth)
Inner Connection Port	Φ 10 mm × 35 mm depth
Filtration Part	Round-end cylinder

Product Features

Custom SS316L Sintered Microporous Distributor

Integrated pulling lug – removes the struggle of stuck elements.

A 4mm-wide, 10mm-deep lug stands off the flange face. When heat-aged O-rings or heavy media buildup lock the unit in place, operators grip this lug and pull the distributor out cleanly. No prying tools needed, and downtime stays short.

Fully custom mounting interface – bolt it on without modification.

The flange diameter, bolt hole spacing, and lug orientation follow your vessel's actual mounting pattern. No shims, no on-site drilling, and no extra adjustment during installation.

Custom Sintered Microporous Distributor with Pulling Lug

Closed round-end tip – eliminates stagnant fluid zones.

The element features a sealed, rounded end rather than an open pipe. This design prevents fluid from pooling or settling at the tail end, ensuring that the process media keeps moving and cycling through the reactor without dead volumes.

Thermal cycling resistance – holds pore geometry through temperature swings.

The sintered structure handles repeated heating and cooling inside batch reactors. The micro-sized pores do not collapse or shift under thermal expansion and contraction, keeping the flow patterns stable over the life of the element.

SS316L Sintered Microporous Distributor with Pulling Lug

Custom SS316L Sintered Distributor with Pulling Lug

Low-adhesion surface for viscous media.

The sintering process creates a surface finish that resists bridging and fouling. For sticky fluids or polymerizing reactions, this surface slows down crust formation and extends the intervals between cleanings.

Weld-free, one-piece construction – no crevices, no particle shedding.

The flange and the cylinder are joined during sintering; no welds are applied later. No weld seams exist to trap chemicals or vibrate loose, so no metal particles break off and enter the process stream.

Application Scenarios

1. Fine chemical reactors: bottom-mounted sparging and catalyst holdback

In fine chemical batch reactors operating at high pressure and elevated temperatures, this distributor mounts to the bottom and takes the incoming nitrogen, hydrogen, or air and spreads it uniformly through its micro-pores. The 10μm pores hold back catalyst powder, so precious metal catalysts won't migrate into downstream piping. When the reaction finishes or the catalyst needs changing, operators grip the pulling lug and pull the distributor straight out from the reactor bottom. This works in tight spaces where standard tools cannot fit.

2.Oxygen sparging for biopharma fermentation

Inside pharmaceutical-grade stainless steel fermenters, this SS316L part is regularly exposed to SIP and CIP cycles. The sintered material does not shed fibers, and nothing from the metal leaches into the culture broth. During operation, the sintered pores generate uniformly sized micro-bubbles. These bubbles carry dissolved oxygen into the liquid medium. Cell growth and metabolic activity rely on this. Between fermentation batches, maintenance staff grab the pulling lug to pull the distributor out quickly. This clears residual liquid and preps the unit for chemical cleaning.

3. Aeration in high-strength or refractory wastewater treatment

For pretreatment of high-concentration organic wastewater or oily effluents, the sub-micron pore size and corrosion resistance of this distributor break compressed air into fine bubbles. This significantly improves flotation or biological aeration efficiency. The stainless steel construction holds up well against physical impact, unlike fragile ceramic aerators. With the pulling lug on the flange, workers wearing gloves out in the field or inside enclosed tanks can pop the distributor in or out quickly for replacement.

4. Carbonation and gas mixing in food and beverage processing

In beverage carbonation, beer fermentation, or edible oil refining, this distributor mounts to the bottom of the enclosed tank and injects CO₂ or nitrogen at a precise rate. The sintered micro-pores produce a stream of uniformly sized bubbles that won't cause local foaming or surface disturbance. The flange and lug dimensions are fully custom, so the unit can be tailored to match various sanitary connections used across food machinery.

5. Quick-change elements for precision filtration in specialized processes

This distributor fits applications that require frequent filter or sparger element changes. The pulling lug pulls double duty: it serves as a grip for pulling the part out, and also works as a physical alignment pin during insertion. It forces the distributor into the correct orientation every time it goes into the mounting slot, so the flange seal won't be unevenly loaded or start leaking. This type of design is especially useful on production lines where operator safety and cycle time are highly restricted

Customization & Selection Guide

To get the correct unit for your setup, please include the following details with your inquiry:

① Required micron rating (μm) for the sintered element.

② Flange outer diameter and mounting hole count / center-to-center distance (attaching a sketch or drawing works best).

③ Orientation of the pulling lug on the flange face.

④ Maximum operating temperature and working pressure expected inside the vessel.

Installation & Operation Notes

During installation, line up the pulling lug with the guide slot or alignment groove on the bottom of your vessel. Once that matches, tighten the flange bolts evenly so the sealing face is not loaded unevenly.

When removing the unit, grip the pulling lug and pull straight up. Avoid prying or bending the element from the side, as lateral force can cause stress at the filter root.