STOPCOCKS & VALVES
334
HI-VAC® Valves
HI-VAC® Straight Valve with PTFE Plug This straight high-vacuum valve is for use in vacuum applications up to 5 x 10-7 Torr. • Designed with a precision external thread for fine control • Can be used as a bleed up to 1/2 turn • Full open position is at 1-1/2 turns • Primary seal is made with a FKM o-ring on a tapered seat • Non-rotating PTFE shaft can be used continuously at system temperatures of 230 °C or intermittently at 275 °C • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
HI-VAC® Straight Valves with Tip O-Rings and PTFE Plug This straight high-vacuum valve is for use in vacuum applications up to 5 x 10-7 Torr.
•
Designed with a precision external thread for fine control Can be used as a bleed up to 1/2 turn
• •
Full open position is at 1-1/2 turns
• Primary seal is made with a FKM o-ring on a tapered seat • Non-rotating PTFE shaft can be used continuously at system temperatures of 230 °C or intermittently at 275 °C • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
Part Number Stem OD (mm)
Bore Range (mm)
Case Qty
Part Number Stem OD (mm)
Bore Range (mm)
Case Qty
826530-0004 826530-0008 826530-0012
9
0-4 0-8
1 1 1
13 16
826500-0004 826500-0008 826500-0012 826300-0020
9
0-4 0-8
1 1 1 1
0-12
13 16 22
0-12 0-20
Replacement Parts
Replacement Parts
Part Number 826501-0004 826501-0008 826501-0012 826502-0004 826502-0008
Description
Case Qty
Size 4 Valve Plug, PTFE Size 8 Valve Plug, PTFE Size 12 Valve Plug, PTFE Size 4 Valve without Plug Size 8 Valve without Plug
1 1 1 1 1
Part Number 826501-0004 826501-0008 826501-0012
Description
Case Qty
Size 4 Valve Plug, PTFE Size 8 Valve Plug, PTFE Size 12 Valve Plug, PTFE
1 1 1
HI-VAC® Straight Valves with Tip O-Rings and CTFE Plug This straight high-vacuum valve is for use in vacuum applications up to 5 x 10-7 Torr. • Designed with a precision external thread for fine control • Can be used as a bleed up to 1/2 turn • Full open position is at 1-1/2 turns • Primary seal is made with a FKM o-ring on a tapered seat • Non-rotating CTFE shaft provides for improved outgassing at system temperatures up to 200 °C
HI-VAC® Low Hold-Up with PTFE Plug and No Tip O-Ring The sidearms of this high-vacuum valve are bent to minimize liquid holdup that would occur in conventional valves.
•
PTFE shaft seals protect the FKM o-rings from contact with the system
•
Seal design reduces outgassing
• Designed with a precision external thread for fine control • Can be used as a bleed up to 1/2 turn • Full open position is at 1-1/2 turns • Primary seal is made with a FKM o-ring on a tapered seat • Non-rotating PTFE shaft • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
•
Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements Part Number Stem OD (mm)
Bore Range (mm)
Case Qty
826505-0004 826505-0008 826505-0012
9
0-4 0-8
1 1 1
13 16
Part Number 826620-0004 826620-0008
Stem OD (mm)
Bore Range (mm)
Case Qty
0-12
9
0-4 0-8
1 1
13
Replacement Parts
Part Number 826506-0004 826502-0004 826502-0008
Description
Case Qty
Replacement Parts
Size 4 Valve Plug, CTFE Size 4 Valve without Plug Size 8 Valve without Plug
1 1 1
Part Number 826601-0004 826601-0008
Description
Case Qty
Size 4 PTFE Valve Plug Size 8 PTFE Valve Plug
1 1
Size 4 HI-VAC® Low Hold-Up Valve without PTFE Plug Size 8 HI-VAC® Low Hold-Up Valve with Extended Tip and No Plug
826622-0004
1
826422-0008
1
Powered by FlippingBook