KF40 Stainless Steel Blank Off Flange Cap (SS 304) – ISO-KF/NW40 Vacuum End Cap (Set of 5)

Description

Product Overview

The KF40 (NW40) stainless steel blank off flange cap is an ISO-KF standard vacuum component used to seal unused KF40 vacuum ports, pipelines, and chamber openings. It is commonly used during system isolation, maintenance, testing, or when temporarily closing vacuum connections in laboratory, research, and industrial vacuum systems.

Manufactured from AISI 304 stainless steel, this blind flange cap offers excellent corrosion resistance, mechanical strength, and long-term durability. When installed using a standard KF40 centering ring, O-ring, and clamp, it provides a reliable, leak-tight vacuum seal suitable for medium and high vacuum applications.

Key Features

• ISO-KF / NW40 standard blank off flange

• Designed to seal unused KF40 vacuum ports

• Manufactured from high-quality SS 304 stainless steel

• Corrosion-resistant and mechanically robust construction

• Compatible with KF40 clamps, centering rings, and elastomer seals

• Suitable for medium and high vacuum applications

• Supplied as a set of 5 blank off caps

Technical Specifications

Applications

Suitable for use in a wide range of vacuum systems, including:

• Research & Development laboratories

• Semiconductor and coating systems

• PVD / CVD vacuum equipment

• Chemical and process vacuum setups

• Industrial vacuum pipelines

• Pharmaceutical and analytical vacuum systems

Actual usage and configuration depend on system design and process requirements.

Why Buy from Ultrahivac

• Precision-manufactured ISO-KF vacuum components

• Consistent sealing and dimensional accuracy

• Technical support for vacuum system configuration

• Trusted supplier for laboratory and industrial vacuum users

FAQs

What is the purpose of a KF40 blank off flange cap?
It is used to seal unused KF40 vacuum ports or pipeline ends during operation, maintenance, or system modification.

Is this compatible with standard KF40 vacuum hardware?
Yes, it is fully compatible with standard KF40 clamps, centering rings, and O-rings.

Can this be used in high vacuum systems?
Yes, when properly sealed with a centering ring and O-ring, it is suitable for medium to high vacuum applications.