6 7/8" Tubing | McMaster-Carr

Spiral reinforcement on the outside of the hose acts as a wear strip to protect against damage caused by dragging. Hose is designed for vacuum applications such as removing accumulated water from pits, loading docks, and other flooded areas.

							Per Ft.
ID	OD	Bend Radius	Max. Pressure	Max. Vacuum	Max. Continuous Lg., ft.		1-99	100-Up
Black EPDM Rubber Hose with Gray Spiral
6"	6 7/8"	27"	35 psi @ 72° F	20" of Hg @ 72° F	50	0000000	000000	000000

High-Vacuum Hose with Claw-Clamp Fittings

More flexible than rigid stainless steel tubing, this hose allows you to link high-vacuum components that are misaligned. Also known as bellows. The ribbed design absorbs vibration so it doesn't transfer from one component to the next. Equipped with a claw-clamp (ISO-K) fitting on each end, this hose connects to large components with fittings starting at trade number 63. Each fitting on the hose requires four claw clamps and a ring (both sold separately) to connect. Not for use in pressure applications.

Double-claw clamps attach to the grooves on the fittings.

Single-claw clamps have a clamp on one end and an exposed bolt on the other. Thread the bolt-end directly into the body of pumps, valves, or other high-vacuum components.

Hose

Temperature Range: Not Rated
Material:
6" Lengths: 321 Stainless Steel
Other Lengths: 304 Stainless Steel
Fitting Material: 304 Stainless Steel

6" Lg.
For Tube OD	Flange OD	High-Vacuum Flange Size	ID	OD	Wall Thickness	Bend Radius	High Vacuum Connection Type	Max. Vacuum		Each
6"	7.09"	160	6"	6 7/8"	0.01"	5 1/4"	ISO-K	10 ^-8 torr @ 72° F	0000000	0000000

Clamps

Double-Claw Clamp

Single-Claw Clamp

Double Claw
For Tube OD	For Flange OD	For High-Vacuum Flange Size	High Vacuum Connection Type	Material	Max. Vacuum		Each
6"	7.09"	160	ISO-K	Aluminum	10 ^-8 torr @ 72° F	0000000	00000
Single Claw
6"	7.09"	160	ISO-K	Aluminum	10 ^-8 torr @ 72° F	0000000	0000

Rings

				Material
For Tube OD	For Flange OD	For High-Vacuum Flange Size	High Vacuum Connection Type	O-Ring	Inner Ring	Max. Vacuum	Max. Temp., °F		Each
6"	7.09"	160	ISO-K	Viton® Fluoroelastomer Rubber	304 Stainless Steel	10 ^-8 torr @ 72° F	400°	0000000	000000

High-Pressure Duct Hose for Metal Chips and Shavings

Flexible
Compatible Clamps: Worm-Drive and Twin-Ring Clamps
Color: Blue
Temperature Range: 0° to 158° F

A polyurethane liner gives this hose extra strength to handle high pressure and vacuum applications. It has a smooth interior for unrestricted flow.

Warning: Hose should not be used for applications that generate a static charge.

									Spiral
ID	OD	Bend Radius	Compresses To	Maximum Vacuum	Maximum Pressure	Lining Material	Material Thickness	Interior Surface Texture	Direction	Material	Max. Continuous Lg., ft.		Per Ft.
Per Foot
PVC
6"	6 7/8"	25"	75%	25 in. of Hg @ 72° F	23 psi @ 72° F	Polyurethane	0.18"	Smooth	Right Hand	Plastic	50	0000000	000000
													Each
Full Coil
PVC
6"	6 7/8"	25"	75%	25 in. of Hg @ 72° F	23 psi @ 72° F	Polyurethane	0.18"	Smooth	Right Hand	Plastic	50	00000000	00000000

Flexible Rubber Foam Pipe Insulation

Soft and easy to install, this insulation restricts absorption of water, air, and gas. It is often used on cold and hot water lines and refrigeration lines. Seal with contact adhesive (sold separately). To use outdoors, coat in acrylic paint.

Unslit Tubes

Unslit Tube

Temperature Range: See Table
Heat Flow Rate: See Table
Density: See Table
Color: See Table
Specifications Met: See Table

									1/2" Wall Thick.
ID	For Pipe Size	Lg., ft.	Temp. Range, °F	Heat Flow Rate	Density	Color	Flexibility	Specifications Met	R Value		Each
Buna-N/PVC Foam
5 3/4"	5	6	-40° to 220°	0.25 Btu @ 75° F	4.5 lbs./cu. ft.	Black	Flexible	ASTM E84 25/50 for Flame and Smoke, ASTM C534	2	00000000	000000

Contact Adhesive (16-fl. oz. Brush-Top Can)	00000000	Each	000000
White Acrylic Coating (1-qt. Can)	00000000	Each	00000

Mineral Wool Pipe Insulation

These insulation tubes and sheets meet ASTM E84 standards for flame and smoke. They are typically used in process piping and mechanical systems and perform best at temperatures up to 600° F. To use outdoors, add metal jacketing.

Tubes

Temperature Range: 0° to 1200° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 8 lbs./cu. ft.
Color: Yellow
Specifications Met: See table

					2" Wall Thick.
ID	For Pipe Size	Lg., ft.	Flexibility	Specifications Met	R Value		Each
2 7/8"	2 1/2	3 1/4	Rigid	ASTM E84 0/0 for Flame and Smoke, ASTM C547	8.7	00000000	000000

Fiberglass Pipe Insulation

This common insulation material is typically used on hot and cold water lines and in process piping. To use outdoors, add metal jacketing.

Tubes, elbows, and tees are formed to provide the best fit on pipe and are the easiest to install. If your pipe is larger than the sizes we offer, choose a sheet/strip.

Tubes have an all-service jacket (ASJ) made of kraft paper with an adhesive strip closure. Seal with reinforced insulation tape (sold separately).

Tubes with Kraft Paper Jacketing

Tube

Temperature Range: 0° to 850° F
Jacket Temperature Range: -20° to 150° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 4.5 lbs./cu. ft.
Color: Yellow
Jacket Color: White
Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C547, ASTM C585

				2" Wall Thick.
ID	For Pipe Size	Lg., ft.	Flexibility	R Value		Each
2 7/8"	2 1/2	3	Rigid	8.7	0000000	000000

Reinforced Insulation Tape (3" × 30 ft.)

00000000

Each

000000

90° Elbows

Elbow

Temperature Range: 0° to 1000° F
Heat Flow Rate: 0.23 Btu @ 75° F
Density: 5 lbs./cu. ft.
Color: Brown
Specifications Met: ASTM E84 25/50 for Flame and Smoke, ASTM C585

			2" Wall Thick.
ID	For Pipe Size	Flexibility	R Value		Each
2 7/8"	2 1/2	Rigid	8.7	00000000	000000

Ultra-Insulating Low-Temperature Polyisocyanurate Foam Pipe Insulation

This very rigid insulation offers the lowest heat-flow rate of our pipe insulation and restricts absorption of water, air, and gas. It is typically used in process piping and chiller plants and performs best in applications below 50° F. To use outdoors, add metal jacketing.

Tubes have a kraft paper all-service jacket (ASJ) that resists mold and mildew by allowing moisture to evaporate. They have an adhesive strip closure.