MDC Vacuum Products Corp. - ANSI ASA Flanges-Non rotatable-Introduction

ANSI ASA Flanges - Non rotatable
Introduction

MDC ASA-style flanges mate with standard 150 lb. ASA-ANSI flanges. Flanges are offered with choice of smooth face or O-ring groove. Eight flange sizes are detailed in this section. They are available blank or bored to fit tube sizes 1-1/2" through 12" O.D.
The vacuum seal is made by compressing an O-ring between a mating pair of flanges. The pair includes a smooth face flange and an O-ring grooved flange.

Features

High Vacuum rated to 1x10^-8 Torr
Temperature rated to 200°C maximum
Viton® elastomer seal
Rotatable Bolt Rings available for LF sizes.
Smooth face or with O-ring groove
ANSI compatible design

Specifications
Material
Flanges	304ss
O-Rings	Viton®
Bolts	300ss
Fastening
Bolt Type	Hexagonal Head
Nut Type	Hexagonal
Size	0.500-13, 0.625-11 and 0.750-10 UNC
Torque	ASA-4 through ASA-9 14lb-ft ASA-11 through ASA-19 24lb-ft
Vacuum Range	1x10^-8 Torr
Temperature Range	Maximum: 200°C Sustained: -20°C to 150°C

Flanges are fabricated from type 304 stainless steel with a surface finish of 32 micro-inches. All corners are chamfered 45°. Sealed flange assemblies are useable to 10-8 Torr and can be baked to 200°C. The maximum temperature for sustained use is 150°C.
Note that repeated bakeout to 200°C can cause deterioration of O-rings and require their periodic replacement.
Applications include use with various types of vacuum chambers, manifolds, furnaces, diffusion pump stations, valves, test equipment, pumps, special viewports, and a variety of experimental devices.

Hybrid Adapters for interfacing with non-ASA flanges are located in Hybrid Adapters Section.

For product listing, features and specifications click on links below

ASA Smooth Face

ASA O-ring Groove

Related Topics

Kwik-Flange™ ISO KF Installation.

Large-Flange™ ISO LF Introduction

ISO KF & LF Fittings Introduction