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Shijiazhuang Poroyal Technologies Co., Ltd.

Rm. C-1301, Hyde Park Plaza No. 66 Yuhua W. Road, 050056 Shijiangzhuang, Hebei
Telephone +86 311 87088438
Fax +86 311 87836445

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Jinbiao Zhao

+86 311 87088438


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Our products

Product category: Valves, Filters

Suction Filters

The suction filter is a self-sealing filter like a valve which is used in suction canisters/liners, when the canister/liner is full and the filter gets wet, the filter starts to work and shut off automatically and instantly. The self-sealing filters can filter the air and protect the hospital central vacuum system, protect the vacuum pump against contaminants, barrier against the bacteria, make the operations more smoothly and safe. 

Material: UHMW-PE

Manufacturing Type: Sintered Porous Filters

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Product category: Valves, Filters

Pipette Filters

The filters for pipette tips are made of UHMW-PE, these hydrophobic filter elements provide aerosol barriers for pipette tips, prevent any fluids and liquid vapors from reaching the internal components of the pipette, prevent samples from cross-contamination, protect operators and pipettes.

We provide standard filters for pipette tips of 20μl, 50μl, 100μl, 120μl, 200μl, 300μl, 500μl, 1000μl, 1200μl, 5000μl and 10ml, also provide the direct replaceable filters for pipette.

Common pipette filters and self-sealing pipette filters are available.

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Product category: Valves, Filters, IV components

Arterial Syringe Vents

Samples of blood gas analysis collected under arterial pressures require high air flow and prevention of contamination from blood and blood-borne pathogens. Arterial Syringe Vent is a kind of porous plastic material with self-sealing function, which is made of UHMW-PE and functional element, the air can pass though the vents freely under arterial pressure, and the vents close instantly while touching blood and getting wet. The arterial syringe vent can protect the healthcare operators and prevent aqueous liquid contamination efficiently. Meanwhile, the arterial syringe with vent could make the operation easier with exact volume.

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Product category: Valves, Filters, IV components

Infusion Needle Vents

Infusion Needle Vents are self-sealing components assembled into infusion needle sheaths, the vents allow air or gases to freely pass through the porous media but when getting wet, block liquids by its self-sealing function, thus shutting off the liquid flow. The infusion sets with the needle vents could make the operation easier and more safety. It can improve the working efficiency of the nurses greatly, protect the environment from drug pollution and reduce the drug waste.

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Product category: Valves, Filters, IV components

IV Catheter Vents

IV Catheter Vents are self-sealing components assembled into IV catheter devices, the vents allow air or gases to freely pass through the porous media but when getting wet, block liquids by its self-sealing function, thus shutting off the air flow.

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Product category: Valves, Filters

Drainage Bag Vents

Drainage bag vent is a hydrophobic plug to avoid the liquid leakage of the drainage bag. The vents are precisely assembled and press-fit into the venting chamber per exact dimensions and keep the pressure balance in the process of the filling in the bag, prevent the leakage at any stage, easy to operate and change the bags during the draining procedures.

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Product category: Filters

Oxygen Diffuser Filters

POROYAL Oxygen Diffuser Filter is made from UHMW-PE powder with uniform size, the labyrinth mode pore makes the filter to be with big pore volume and small pore size. Our oxygen diffuser filter is the optimized component with high flow rate and small uniform bubbles, it makes the consistent humidification, higher humidification efficiency, lower noise with high safety performance.

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About us

Company portrait

POROYAL devotes itself on the R&D for the powder sinter porous filter technology and the manufacture of the sinter porous filter elements. Our product includes 2 series of porous media and filter elements:

Metal Sintered Porous Filters

Plastic Sintered Porous Filters

The sintered porous materials include: Stainless Steel, Titanium, Monel, Inconel, Hastelloy, Bronze, UHMW-PE, PTFE, and other special materials required.


All our products are passed the strict inspections in our laboratory and ex-work to make sure our 100% qualified products to our users. Our products are widely used in medical devices, pharmaceutical, chemical, petrochemical, oil field, water treatment, food & beverage, vacuum conveying and other special fields, serve for its liquid-solid and gas-solid separation, venting and other functional application. Our high quality products are widely accepted by our customers at home and overseas markets.

Company data

Sales volume 1-9 Mio US $
Export content > 75%
Number of employees 20-49

Company information as a PDF file