INDUSTRY COMPONENT

Inlet/Outlet Ports

Vacuum pump inlet/outlet ports are precision-engineered connection points that control gas flow into and out of vacuum systems.

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Component Specifications

Definition
Inlet/outlet ports on vacuum pumps are critical interface components designed to establish and maintain airtight connections between the pump and external systems. The inlet port serves as the entry point for gases being evacuated from the vacuum chamber, while the outlet port expels compressed gases to the atmosphere or to subsequent processing stages. These ports feature standardized flange configurations, sealing surfaces, and mounting provisions to ensure leak-tight operation under varying pressure differentials.
Working Principle
Inlet ports create a pressure differential that draws gases into the pump's compression mechanism, while outlet ports release compressed gases against atmospheric or system backpressure. Both ports utilize precision-machined sealing surfaces and standardized connection interfaces to maintain vacuum integrity and prevent contamination ingress.
Materials
Stainless steel (304/316), aluminum alloys (6061-T6), brass (C36000), with optional PTFE or Viton sealing elements. High-vacuum applications may use electropolished stainless steel or aluminum with copper gaskets.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Leak Rate<10^-9 mbar·l/s
Port SizeDN16 to DN100 (ISO-KF) or 1/4" to 4" NPT
Flange TypeISO-KF, CF, ASA, NPT, BSP
Surface FinishRa ≤ 0.8 μm for high vacuum
Pressure Rating10^-9 to 10^3 mbar
Temperature Range-20°C to 150°C

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

Standards
ISO 2861, ISO 1609, DIN 28403, DIN 28404

Parent Products

This component is used in the following industrial products

Jacket/Temperature Control System

A thermal management component that regulates process temperatures by circulating heating or cooling media through an external jacket surrounding equipment.

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Reaction Module

A modular unit within a continuous flow pharmaceutical reactor where chemical reactions occur under controlled conditions.

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Reactor Module

A modular unit within a continuous flow chemical reactor system designed for controlled chemical reactions under specific conditions.

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Engineering Analysis

Risks & Mitigation
  • Leakage compromising vacuum integrity
  • Contamination ingress through ports
  • Mechanical damage to sealing surfaces
  • Incompatible flange standards causing connection failures
FMEA Triads
Trigger: Improper gasket installation or damaged sealing surfaces
Failure: Vacuum leak exceeding acceptable rates
Mitigation: Implement torque-controlled assembly procedures and regular visual inspection of sealing surfaces
Trigger: Corrosion or chemical attack on port materials
Failure: Structural weakening and contamination generation
Mitigation: Select corrosion-resistant materials (316 stainless steel) and implement protective coatings where applicable

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Flange flatness within 0.05 mm, surface roughness Ra ≤ 0.8 μm, dimensional accuracy per ISO 2861
Test Method
Helium leak detection (mass spectrometry), pressure decay testing, bubble testing for gross leaks

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Inlet/Outlet Ports

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Ningbo New Jiaxing Automatic Industry Co., Ltd.
Ningbo, Zhejiang, CN
Also makes: Pneumatic Cylinder, Flow Control Valve, Check Valve and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “inlet outlet ports”
View source page ↗ jxpc-pneumatic.com · recorded 2026-09-08
View profile Send enquiry

Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between ISO-KF and CF flange connections?

ISO-KF (Klein Flange) uses clamp connections with elastomer seals for medium vacuum (10^-9 to 10^3 mbar), while CF (ConFlat) uses metal gaskets and bolted flanges for ultra-high vacuum applications (below 10^-9 mbar).

How do I prevent leaks in vacuum pump ports?

Ensure proper surface finish (Ra ≤ 0.8 μm), use correct gasket materials (Viton for general vacuum, copper for high vacuum), follow specified torque values during assembly, and perform regular helium leak testing.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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