Shanghai Delun Gas Equipment CO.,LTD

Face seal fittings

Product Description

General Information

GENTEC specializes in designing and manufacturing of high quality valves and fittings for High Purity and Ultra-High Purity applications. GENTEC FSR fittings, made from 316/316L/316 VAR, are supplied in BA or EP grade, cleaned, bagged individually in clean room nylon bags, and heatsealed. The inner bag is then placed in a polyethylene outer bag and heatsealed in a class 100 clean room to meet the severe demand of the semiconductor industries.

Materials of Construction

Material	Ordering Number Designator	Applicable Specification
GLANDS, BODIES AND NUTS
316L stainless steel	SS	Bar Stock: ASME SA479, ASTM A276 Forged Shapes: ASME SA182, ASTM A314
316L stainless steel	SL	Bar Stock: ASME SA479, ASTM Forged Shapes: ASTM A182
316L VAR (Vacuum stainless steel	SLV	Bar Stock: ASME SA479, ASTM A276 Forged Shapes: ASTM A182
GASKETS
Nickel	NI	ASTM B162
316L stainless steel	SS	ASTM A240, ASTM A167

Plating
The FSR female nuts are silver-plated. Avoid chemical processes used for cleaning, electropolishing and passivationthat will remove plating. If the plating is damaged or removed, thread galling will occur, damaging fitting components and preventing a proper seal.

Dimensions
* Dimensions are in inches for reference only without notice and subject to change.

Pressure Ratings

Ratings are based upon tests conducted using FSR assemblies
All ratings comply with calculations per ANSI Code for Pressure Piping B31.3
Working pressure ratings determined at room temperature. Allowable working pressure of elevated temperatures could be obtained by multiplying factors shown in the following table

Temperature (°F)	Factors
100	1.0
200	1.0
300	1.0
400	0.96
500	0.90
600	0.85
700	0.82
800	0.79
900	0.78
1000	0.76

Temperature Ratings

Components	Material	Temperature
Components	Material	°F	°C
Fittings	316 stainless steel	1000	537
	316L stainless steel	1000	537
	316L VAR stainless steel	1000	537
Gaskets	316 stainless steel	1000	537
Gaskets	nickel	600	315

Testing
The FSR assembly has been helium-leak tested to a rate of 1 x10-9 std cc/sec without leakage.

Ultra High Purity
A variety of FSR face seal glands and bodies are available with controlled surface finishes, electropolished, and specially cleaned to meet Ultra-High-Purity system requirements.

Ordering Information

To order EP fittings, use the following Designator code as a suffix to the Ordering Number.
Example: SLV-VDS-FSR4-T4L7P

Surface Finish Grade	Designator	Surface Finish (Ra)
BA	-	10µin (0.25 µm)
EP	P	5µin (0.13 µm)

Configuration

Female Nut: Female thread is silver-plated to prevent galling, ensure easy assembly and consistent make-up
Visual check & Leak Test Port: Test port at two locations for easy leak testing

Configuration

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