Vacuum Seal Door for Drying Chambers

Product Specifications

Technical details and manufacturing context for Vacuum Seal Door

Definition

The Vacuum Seal Door is a critical component of industrial drying chambers, engineered to create and maintain a vacuum-tight seal when closed. Its primary function is to prevent air ingress, ensuring a consistent low-pressure environment essential for controlled drying processes. Serving as the primary access point, it allows operators to load and unload materials while preserving chamber integrity. The door features a precision-machined sealing surface that mates with the chamber opening. When closed, a mechanical clamping mechanism compresses an elastomeric gasket against the sealing surface, forming an airtight barrier. Some designs incorporate inflatable seals or hydraulic/pneumatic systems to enhance sealing pressure. Constructed from materials such as stainless steel, silicone rubber gaskets, and aluminum alloy, the door is available in various configurations to suit different operational requirements. Key parameters include an operating pressure range of 1.0–1.6 MPa, a sealing temperature range of -40 to 85°C, and a leak rate of ≤1×10⁻⁶ Pa·m³/s (per ISO 21360). Door diameter ranges from 600 to 2000 mm, with thickness from 20 to 50 mm, and weight from 80 to 350 kg. Material grades include 304/316L stainless steel (ASTM A240), and seal materials include EPDM/FKM (ASTM D2000). Closing time is 5–15 seconds with pneumatic actuation, power supply is 24 V DC (±10%), IP rating is IP54–IP65 (IEC 60529), and maximum humidity is 95% RH (non-condensing). These values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. The door is designed for integration into drying chamber systems, with interfaces for control systems and pneumatic connections. Maintenance signals include visible wear on the gasket, increased leak rates, or difficulty in achieving vacuum. Failure boundaries include operation outside the specified temperature or pressure ranges, which can degrade seal integrity. Verification questions should address the required operating pressure, temperature, door size, and material compatibility with the process media.

Working Principle

The door operates by aligning its precision-machined sealing surface with the chamber opening. A mechanical clamping mechanism then compresses an elastomeric gasket against the surface, creating an airtight seal. Some designs use inflatable seals or hydraulic/pneumatic systems to increase sealing pressure. The seal prevents air ingress, maintaining the required vacuum level inside the chamber.

Common Materials

Stainless steel, Silicone rubber gasket, Aluminum alloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Sealing Temperature	-40–85 °C	Outside range, seal integrity degrades
Leak Rate	≤1×10⁻⁶ Pa·m³/s	Helium leak test at 1 bar differentialISO 21360
Door Diameter	600–2000 mm	Custom sizes available on request
Door Thickness	20–50 mm	Depends on pressure rating
Weight	80–350 kg	Includes hinges and locking mechanism
Material Grade	304/316L	316L for corrosive environmentsASTM A240
Seal Material	EPDM/FKM	FKM for high temperatureASTM D2000
Closing Time	5–15 s	Pneumatic actuation
Power Supply	24 ±10% V DC	For control system
IP Rating	IP54–IP65	IP65 for washdown areasIEC 60529
Max. Humidity	95 % RH	Non-condensing

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Door Panel Part
Primary structural element that covers the chamber opening

Material: Stainless steel
Sealing Gasket Part
Elastomeric component that compresses to create airtight seal

Material: Silicone rubber
Clamping Mechanism
System that applies pressure to compress the gasket against sealing surface

Material: Steel alloy
Hinge System
Allows door to swing open and close while maintaining alignment

Material: Stainless steel
Inflatable Seal Optional
Inflates against the sealing face to raise contact pressure, on that design.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Drying Chamber

View system integration details

Manufacturers of Vacuum Seal Door

Manufacturer profiles associated with Vacuum Seal Door.

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Frequently Asked Questions

What is the operating pressure range for this vacuum seal door?

The reference operating pressure range is 1.0–1.6 MPa. However, the actual range depends on the specific model and application. Always verify with the manufacturer.

What materials are used for the door and seal?

The door is typically made of stainless steel (grades 304 or 316L) or aluminum alloy. The seal is made of elastomeric materials such as EPDM or FKM. Material grades should be confirmed for your specific requirements.

How is the vacuum seal achieved?

The door uses a precision-machined sealing surface and a mechanical clamping mechanism that compresses an elastomeric gasket. Some designs incorporate inflatable seals or hydraulic/pneumatic systems to enhance sealing pressure.

What is the leak rate specification?

The reference leak rate is ≤1×10⁻⁶ Pa·m³/s, tested with helium at 1 bar differential, per ISO 21360. This value should be verified for the specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Full vacuum to 2 bar absolute
other spec:	Leak rate: <1×10⁻⁶ mbar·L/s, Seal life: 10,000 cycles minimum
temperature:	-40°C to 150°C

Vacuum Seal Door

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards