ISO63-ISO500

Vacuum ISO Bored Flanges SS304/SS316L ISO63-ISO500

ISO bored flange,an opening of a specific size in the center for the installation of piping or other connecting parts that allow fluid or gas to flow through the system.

Standard:	KF,ISO,CF Standard
Helium Leak Test:	1x10 -9 Pa · m³/sec or less

Cart

Product Introduction

Used in low & high vacuum. Along with the components they offer a simple solution for applications requiring easy and repeated assembly.

Plastic flange protective cap is included to avoid flange scratching during transportation

The ISO-KF components are assembled by inserting a centering ring with viton o-ring between the two flange,then securing them with a vacuum clamps.

Specification

Product Name	ISO vacuum bored flange ISO63-ISO500
Brand	RUIJIA
Size	ISO63,ISO80,ISO100,ISO160,ISO200,ISO250, ISO320,ISO400,ISO500
Material	SS304, SS316L, 6061T6 Alu, EN1.4301, EN1.4404
Seal material	Viton,Silocone,Buna-N seal
Standard	KF,ISO,CF Standard
Temperature	-200~450℃
Working Pressure	Vacuum~atmosphere pressure
Helium Leak Test	1×10 -9 Pa・m³/sec or less
Packing	sealed plastic bag with a protective plastic cap.
ISO Vacuum flange types	ISO blank flange,ISO bored blank, long weld stub flange,ISO half nipple(long and short)

Product parameters

ISO Vacuum Bored Flange Unit:mm

Model No.	Material	A	B	C	D	E
ISO63B63	SS304	95	70	12	90	63.7
ISO80B76	SS304	110	83	12	105	76.8
ISO100B102	SS304	130	102	12	125	102.2
ISO160B153	SS304	180	153	12	175	152.9
ISO200B204	SS304	240	213	12	235	203.7
ISO250B255	SS304	290	261	12	285	254.5
ISO320B305	SS304	370	318	17	365	305.3
ISO400B407	SS304	450	400	17	445	406.9
ISO500B509	SS304	550	501	17	545	508.8

SS316, Aluminum is upon request

Recommended Products

ISO63-ISO630

China Sus304 316 ISO-BF Bolted flange Vacuum ISO flanges ISO63-ISO630

Standard:	ISO Standard
Helium Leak Test:	1x10 -9 Pa · m³/sec or less

ISO63-ISO630

China Sus304 316 ISO-BF Bolted flange(Tapped) ISO Vacuum flanges ISO63-ISO630

Standard:	ISO Standard
Helium Leak Test:	1x10 -9 Pa · m³/sec or less

ISO63-ISO500

Vacuum ISO flange Rotatable Bolt Ring China ISO63-ISO500

Standard:	ISO Standard
Helium Leak Test:	1x10 -9 Pa · m³/sec or less

Related Information

5 Tips to Choose Vacuum Flanges & Fittings

Selecting the right vacuum flanges and fittings is critical for achieving and maintaining ultra-high vacuum. This guide ...

2026-05-20

7 Questions Before Buying Vacuum Hardware

Before purchasing vacuum connection components, ask these seven critical questions about material compatibility, sealing...

2026-05-15

How KF Vacuum Flanges Achieve Reliable Sealing

Discover how quick-release vacuum connections prevent leaks through knife‑edge sealing and O‑ring centering rings. Learn...

2026-05-09

Avoid Over-Torquing CF Flange Bolts

Over-tightening bolts is a silent killer of vacuum integrity. This guide reveals the physics behind sealing failure, ste...

2026-05-08

After-Sales Service

We have a modern stock management system and professional after-sales service team.

Rich stock, fast delivery

Quick response within 24h

Quality assurance

Accessory replacement

Inquiry Basket()

GET A QUOTE