Valves — Diaphragm-Sealed Valves

Valves available with these specifications:

1/4 to 1/2 in. (6 to 8 mm)
–100°F (–73°C) to 300°F (150°C)
316 stainless steel, 316L VIM-VAR, 316L VAR, Elgiloy, PCTFE
250 psig (17.2 bar) to 3045 psig (209 bar)

Your local authorized Swagelok sales and service center may have additional options.

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
NXT-3DK-DR8	-	-	-	-	-

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
E-3DK-DA	Elgiloy	-	-	-	-

E-3DK-DF	Elgiloy	-	-	-	-

E-3DK-DP	Elgiloy	-	-	-	-

SS-3DK-DS	-	-	-	-	-

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LV-DLBW4	316L VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LV-DSBW4	316L VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LV-DSBW6	316L VAR	3/8 in.	Tube Butt Weld	3/8 in.	Tube Butt Weld

SS-DLS4	316L Stainless Steel	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

SS-DLS6	316L Stainless Steel	3/8 in.	Swagelok® Tube Fitting	3/8 in.	Swagelok® Tube Fitting

SS-DLS6MM	316L Stainless Steel	6 mm	Swagelok® Tube Fitting	6 mm	Swagelok® Tube Fitting

SS-DLVCR4	316L Stainless Steel	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

SS-DSM4F4A	316L Stainless Steel	1/4 in.	Male NPT	1/4 in.	Female NPT

SS-DSS4	316L Stainless Steel	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

SS-DSS6	316L Stainless Steel	3/8 in.	Swagelok® Tube Fitting	3/8 in.	Swagelok® Tube Fitting

SS-DSV51	316L Stainless Steel	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

SS-DSTW4	316L Stainless Steel	1/4 in.	Tube Socket Weld	1/4 in.	Tube Socket Weld

SS-DSVCR4	316L Stainless Steel	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

SS-DLV51	316L Stainless Steel	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

SS-DLS8MM	316L Stainless Steel	8 mm	Swagelok® Tube Fitting	8 mm	Swagelok® Tube Fitting

Additional parts may be available. Select Attributes

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LVV-P2V222P-AA	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-P1V222P-AA	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LVV-DPVR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPVR4-P1	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPBW4-P	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPC233P-C	316L VIM-VAR	1/4 in.	Rotatable Male VCR® Metal Gasket Face Seal	1/4 in.	Female VCR® Metal Gasket Face Seal

6LVV-DPMR4-P	316L VIM-VAR	1/4 in.	Rotatable Male VCR	1/4 in.	Face Seal (Metal Gasket) Male Rotatable VCR Thread

6LVV-DPS4	316L VIM-VAR	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

6LVV-DPS6M	316L VIM-VAR	6 mm	Swagelok® Tube Fitting	6 mm	Swagelok® Tube Fitting

6LVV-DPTFR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPFR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPFR4-P1	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPFR4-P-GR	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPLFR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPLVR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

Additional parts may be available. Select Attributes

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LV-DFFR8-P-GR	316L VAR	1/2 in.	Face Seal (Metal Gasket) Female VCR	1/2 in.	Face Seal (Metal Gasket) Female VCR

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LV-DFBW6-P-C	316L VAR	3/8 in.	Tube Butt Weld	3/8 in.	Tube Butt Weld

6LV-DFBW8-P-C	316L VAR	1/2 in.	Tube Butt Weld	1/2 in.	Tube Butt Weld

6LV-DFHFR4-P-O	316L VAR	1/4 in.	Face Seal (Metal Gasket) Female HVCR	1/4 in.	Face Seal (Metal Gasket) Female HVCR

6LV-DFMR8-P-C	316L VAR	1/2 in.	Face Seal (Metal Gasket) W/male Nut	1/2 in.	Face Seal (Metal Gasket) W/male Nut

6LV-DFFR8-P-C	316L VAR	1/2 in.	Face Seal (Metal Gasket) Female VCR	1/2 in.	Face Seal (Metal Gasket) Female VCR

6LV-DFHFR4-P-C	316L VAR	1/4 in.	Face Seal (Metal Gasket) Female HVCR	1/4 in.	Face Seal (Metal Gasket) Female HVCR

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LVV-DPHBW4-P	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPHFR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPHVR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPHVVR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LVV-DPHFR4-P1-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPHFR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPHS4-C	316L VIM-VAR	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

6LVV-DPHS4-O	316L VIM-VAR	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

6LVV-DPHS6M-C	316L VIM-VAR	6 mm	Swagelok® Tube Fitting	6 mm	Swagelok® Tube Fitting

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
A-DP-K1-C	-	-	-	-	-

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LVV-MSM-DP-2-P-C	316L VIM-VAR	-	-	-	-

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6LVV-DPA111P-C	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPBW4-P-C	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPFR4-P-O	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPFR4-P1-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPHVR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPMR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male Rotatable VCR Thread	1/4 in.	Face Seal (Metal Gasket) Male Rotatable VCR Thread

6LVV-DPS4-C	316L VIM-VAR	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

6LVV-DPS6M-C	316L VIM-VAR	6 mm	Swagelok® Tube Fitting	6 mm	Swagelok® Tube Fitting

6LVV-DPVR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPFR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPVR4-P1-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPL11P-C	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPC111P-C	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPS4-O	316L VIM-VAR	1/4 in.	Swagelok® Tube Fitting	1/4 in.	Swagelok® Tube Fitting

6LVV-DPTVR4-P	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

6LVV-DPVFR4-P-C	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPBW4-P1-C	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPR11P-C	316L VIM-VAR	1/4 in.	Tube Butt Weld	1/4 in.	Tube Butt Weld

6LVV-DPFR4-P-CM	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Female VCR	1/4 in.	Face Seal (Metal Gasket) Female VCR

6LVV-DPVR4-P-O	316L VIM-VAR	1/4 in.	Face Seal (Metal Gasket) Male VCR	1/4 in.	Face Seal (Metal Gasket) Male VCR

Additional parts may be available. Select Attributes

Part #	Body Material	Connection 1 Size	Connection 1 Type	Connection 2 Size	Connection 2 Type
6L-3AK-DS-KF	PCTFE	-	-	-	-

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Valves — Diaphragm-Sealed Valves

Diaphragm-Sealed Valves — Spare Parts and Accessories — Diaphragm Kit

Diaphragm-Sealed Valves — Spare Parts and Accessories — Diaphragm and Seal Kit

Diaphragm-Sealed Valves — High-Purity High-Pressure Diaphragm Valves, DL and DS Series — Straight Pattern

Diaphragm-Sealed Valves — Multi-Valve Manifolds — Diaphragm Sealed

Diaphragm-Sealed Valves — Ultrahigh-Purity Shutoff Diaphragm Valves, DP Series — Straight Pattern, Manual Actuation

Diaphragm-Sealed Valves — Ultrahigh-Purity High-Flow Diaphragm Valves, DF Series — Straight Pattern, Manual Actuation

Diaphragm-Sealed Valves — Ultrahigh-Purity High-Flow Diaphragm Valves, DF Series — Straight Pattern, with Actuator

Diaphragm-Sealed Valves — Ultrahigh-Purity High-Pressure Diaphragm Valves, DPH Series — Straight Pattern, Manual Actuation

Diaphragm-Sealed Valves — Ultrahigh-Purity High-Pressure Diaphragm Valves, DPH Series — Straight Pattern, with Actuator

Diaphragm-Sealed Valves — Spare Parts and Accessories — Actuator Kit

Diaphragm-Sealed Valves — Ultrahigh-Purity Shutoff Diaphragm Valves, DP Series — Modular Surface Mount (MSM) with Actuator

Diaphragm-Sealed Valves — Ultrahigh-Purity Shutoff Diaphragm Valves, DP Series — Straight Pattern and Multiport

Diaphragm-Sealed Valves — Spare Parts and Accessories — Stem Kit

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Valves — Diaphragm-Sealed Valves