Jiangsu Gongtang Chemical Equipments Co., Ltd. Jiangsu Gongtang
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Glass Lined Reactor

Corrosion-resistant reaction vessels for chemical, pharmaceutical, and industrial applications

Glass Lined Reactor

Glass lined reactors are corrosion-resistant pressure vessels widely applied in chemical, pharmaceutical, food, dye, and other industrial processes. By combining the strength of steel with the stability of glass, reactors have an increased performance in processes such as mixing, hydrolysis, emulsification, neutralization, and crystallization.

  • Capacity range: 50 – 80,000 L
  • Maximum pressure: up to 16 bar (atmospheric to high pressure)
  • Operating temperature range: –19 °C to 200 °C
  • Standards: CE/JIS/ASME/GB

The internal steel surface of the reactors is coated with a glass enamel layer and fused to the metal at high temperature, forming a smooth and durable lining that adheres firmly to the surface. Through repeated high-temperature treatments (around 900 °C) the coating develops the necessary resistance to wear, heat, thermal shock, and corrosion, while ensuring a smooth inner layer for easier cleaning and maintenance.

Glass lined reactors are available in a wide range of specifications, with options for customized designs to meet specific process requirements. Agitators can be added to suit different processes, giving the reactor the flexibility to handle a wide range of production needs.

Glass Lined Reactors, Open Type
Glass Lined Reactors, Open Type

A glass lined reactor is manufactured by spraying a silica-rich glass powder onto the inner surface of a steel vessel. The vessel is then fired at high temperatures, causing the glass to bond firmly to the steel and form a durable composite.

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Glass Lined Reactors, Close Type
Glass Lined Reactors, Close Type

Close-type glass lined reactors are commonly used in the chemical, petrochemical, pharmaceutical, dye, food, and pesticide industries, as these sectors require reliable corrosion resistance and durability. These reactors can withstand demanding processes by providing high corrosion resistance, consistent stability, and reliable operation.

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Glass Lined Reactor, Half Pipe Coil Jacketed
Glass Lined Reactor, Half Pipe Coil Jacketed

Half pipe coil jacketed glass lined reactors are widely used in chemical, petrochemical, pharmaceutical, dye, pesticide, and food industries. Compared with conventional jacketed glass lined reactors, the half pipe coil design offers several clear advantages in terms of safety, heat transfer, rigidity, and corrosion resistance.

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GMP-Certified Glass Lined Equipment with Stainless Steel Cladding
GMP-Certified Glass Lined Equipment with Stainless Steel Cladding

We design and manufacture GMP-certified glass lined equipment with stainless steel cladding to meet the stringent requirements of pharmaceutical production. These reactors and vessels combine a corrosion-resistant glass lining with an external jacket for precise temperature control, while the stainless steel cladding ensures durability and an easy-to-clean surface.

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Non-Standard Glass Lined Equipment
Non-Standard Glass Lined Equipment

White enamel glass lined equipment
Multi-nozzle photocatalytic glass lined reactor

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We also provide Accessories for Glass-Lined Equipment

Features
  • Glass lined reactors are available in both metric and imperial standard sizes. Diameter, height, thickness, and other key parameters can also be tailored to specific process requirements.
  • The nozzle layout follows a standard design, but both the size and arrangement can be adjusted to match specific process needs.
  • Agitators can be selected from several types, frame, anchor, impeller, hydrofoil, or pitched blade, depending on the requirements of mixing and reaction.
  • Reactors can be equipped with a conventional jacket, a half-pipe coil jacket, or left without a jacket if the process does not require it.
  • The vessel lining can be produced using different enamel types to suit various processes. The warranty period ranges from 9 to 18 months, depending on the enamel applied.

What are the main components of open-type glass lined reactors, and what are their functions?

Open-type glass lined reactors consist of a few important parts: the vessel body, a removable cover, sealing gaskets, and clamps. Sealing gaskets are necessary to form a seal between the cover and the body, while the clamps hold them firmly together, so the reactor stays tightly closed and safe during operation.

How does the design pressure vary with different sealing methods?

The internal design pressure depends on the sealing method. With a packing seal, the vessel is rated for 0.2 MPa. With a mechanical seal, the design pressure can be 0.4 MPa or up to 1.0 MPa, depending on the configuration.

What special structural features are included in closed-type glass lined reactors to simplify operation and maintenance?

Some glass lined reactor models are equipped with quick-opening manhole covers and dual manholes, to enable easier access for inspection and maintenance. The lid is designed with butt-welded flanges to ensure stronger connections and simplify the installation of extra components, combining durability with practical convenience.

Which jacket design provides better heat transfer for liquid heating and cooling media: conventional or half-pipe coil?

When working with liquid heating or cooling media, the half-pipe coil jacket generally provides better heat transfer performance. Its effective area is smaller, about one-third less than that of a conventional jacket, but the flow rate is two to three times higher. In half-pipe coil jackets, the faster flow helps avoid many of the problems seen in conventional designs, like uneven heat transfer or buildup inside the jacket. This way, the heat spreads more evenly, making the process both more efficient and steadier during operation.

When the reactor operates with cooling water, which jacket design helps prevent corrosion problems?

The half-pipe coil jacket is recommended. Cooling water often contains ions such as H⁺ and Cl⁻ that can accelerate corrosion. In conventional jackets, deposits can accumulate and worsen this effect. The faster flow in half-pipe coil jackets minimizes deposits and reduces the risk of wall corrosion.

Do half-pipe coil glass lined reactors meet certification requirements for export to the European Union?

Yes. These glass lined reactors are CE-certified for the European Union, also comply with Japanese JIS standards, U.S. ASME codes, and Chinese JB standards. Backed by these certifications, they fully meet the compliance requirements for export to EU markets.

Equipment
  • Glass Lined Reactor
    1. Glass Lined Reactors, Open Type
    2. Glass Lined Reactors, Close Type
    3. Glass Lined Reactor, Half Pipe Coil Jacketed
    4. GMP-Certified Glass Lined Equipment with Stainless Steel Cladding
    5. Non-Standard Glass Lined Equipment
  • Glass Lined Storage Tank
  • Glass Lined Column
  • Glass Lined Heat Exchanger
  • Glass Lined Double Cone Dryer
  • Accessories
  • Integrated Process Systems
  • Corrosion-Resistant Process Equipment
Looking for corrosion-resistant glass-lined equipment?
Looking for corrosion-resistant glass-lined equipment?

We design and build reactors, tanks, and process systems tailored to your production needs. Get in touch to discuss the right solution for you.

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Jiangsu Gongtang Chemical Equipments Co., Ltd. Jiangsu Gongtang
Glass-Lined Equipment Manufacturer
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  • Glass Lined Reactor
  • Glass Lined Storage Tank
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