Editorial Technical Reference

Chemical Reactor Sealing Gland

This page explains how Chemical Reactor Sealing Gland is classified within Basic Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The Chemical Reactor Sealing Gland is a precision-machined component used in chemical reactors to create a leak-proof barrier around rotating shafts.

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Product Specifications

Technical details and manufacturing context for Chemical Reactor Sealing Gland

Definition

The Chemical Reactor Sealing Gland is a precision-machined component used in chemical reactors to create a leak-proof barrier around rotating shafts. It is designed to compress sealing elements against the shaft, preventing chemical leakage and contamination. This gland is suitable for corrosive environments and maintains pressure integrity in continuous manufacturing processes. Standardized designs allow interchangeability across reactor systems.

Constructed from stainless steel 316L with a PTFE coating and alloy steel bolts, the gland offers corrosion resistance and durability. It accommodates shaft diameters from 25 to 120 mm, with a bolt circle diameter ranging from 85 to 250 mm. The pressure rating is 1.0 to 1.6 bar, and the operating temperature range is -40°C to 200°C, with cooling required above 200°C. The sealing face flatness is 0.005 mm, and the surface roughness is Ra 0.4 µm, ensuring a reliable seal. Bolt torque should be applied at 80 to 120 N·m for uniform compression. The maximum allowable leakage rate is 0.01 cm³/min for volatile media. The weight varies from 2.5 to 15 kg depending on size and material.

All specifications are reference values that must be verified for the specific model and application. Standards such as ISO 13709, ISO 7005, ASTM A276, ISO 492, ISO 1302, and ISO 15848 are listed as procurement and verification references, not as proof of certification or compliance. Always confirm model-specific values and standards with the legal manufacturer or supplier before installation.

Working Principle

The gland applies compressive force to sealing elements via a bolted flange. When bolts are tightened to the specified torque, the flange compresses the sealing elements, creating radial pressure against the rotating shaft surface. This radial pressure forms a tight barrier that prevents process fluid from leaking out and external contaminants from entering. The PTFE coating reduces friction and enhances chemical resistance. Proper bolt torque is critical to achieve uniform compression and maintain the sealing performance over time.

Common Materials

stainless steel 316L, PTFE coating, alloy steel bolts

Technical Parameters

Parameter	Typical range	Notes & selection driver
Shaft DiameterRequired	25–120 mm	Compatible shaft sizeISO 13709
Bolt Circle DiameterRequired	85–250 mm	Bolt hole pattern diameterISO 7005
Pressure RatingRequired	1.0–1.6 bar	Maximum working pressureISO 5208
Material GradeRequired	316L	Corrosion resistance specificationASTM A276
Operating Temperature	-40–200 °C	Above 200°C requires cooling
Sealing Face Flatness	0.005 mm	Critical for leak-free sealingISO 492
Surface Roughness	Ra 0.4 µm	Required for dynamic sealISO 1302
Bolt Torque	80–120 N·m	Ensure uniform compression
Leakage Rate	0.01 cm³/min	Maximum allowable for volatile mediaISO 15848
Weight	2.5–15 kg	Depends on size and material

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

Main Flange Body
Structural support and pressure containment

Material: Stainless Steel
Sealing Surface Part
Interface for sealing elements

Material: PTFE-Coated Steel
Sealing Elements
Compressed by the bolted flange to create radial pressure against the rotating shaft.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Chemical Reactor Sealing Gland.

Manufacturers of Chemical Reactor Sealing Gland

Manufacturer profiles associated with Chemical Reactor Sealing Gland.

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Frequently Asked Questions

What is the purpose of the sealing gland in a chemical reactor?

The sealing gland is a component that compresses sealing elements against the rotating shaft to create a leak-proof barrier. It prevents chemical leakage and contamination, maintaining pressure integrity in continuous manufacturing processes.

What materials are used in the construction of this gland?

The gland is made of stainless steel 316L with a PTFE coating, and the bolts are alloy steel. These materials provide corrosion resistance and durability in corrosive environments.

What are the key specifications to consider for this gland?

Key specifications include shaft diameter (25–120 mm), bolt circle diameter (85–250 mm), pressure rating (1.0–1.6 bar), operating temperature (-40°C to 200°C), sealing face flatness (0.005 mm), surface roughness (Ra 0.4 µm), bolt torque (80–120 N·m), leakage rate (0.01 cm³/min), and weight (2.5–15 kg). These are reference values and must be verified for the specific model.

How should I verify the suitability of this gland for my reactor?

You should confirm the model-specific values and standards with the legal manufacturer or supplier. The listed standards (e.g., ISO 13709, ISO 7005) are procurement references, not proof of compliance. Always check the actual specifications against your reactor's requirements.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 25 bar
shaft speed:	Up to 3000 rpm
temperature:	-40°C to 250°C
slurry concentration:	Up to 40% solids by weight