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Agilent Varian HS-20 Vacuum Diffusion Pump, 20 in. ASA, 27.5 in. OD, Std. Cold Cap, 17,500 l/s, 240V


These Agilent Varian High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-20 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanisms. The Agilent Varian HS-20 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pumps used in the same vacuum range. The full fractionating design allows vaporized fluid to be fractionated in the boiler and jet assembly. Contamination and decomposition products are pumped away and only the purest vapor reaches the top jet, assuring highest speed and lowest backstreaming. The vacuum fluid heater is mounted at the bottom of the pump body. The HS pumps have a fill and drain assembly for easy maintenance of pump fluid and continuous monitoring with thermal protection switches. Finned boilers increase the surface area which prolongs fluid life. The inlet is at the top, and the exhaust is through the foreline.

Condition: New



Product Number: P106875



Price: $22,000.00



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Agilent Varian HS-20 Vacuum Diffusion Pump, 20 in. ASA, 27.5 in. OD, Halo Baffle, 17,500 l/s, 240V


These Agilent Varian High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-20 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanisms. The Agilent Varian HS-20 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pumps used in the same vacuum range. The full fractionating design allows vaporized fluid to be fractionated in the boiler and jet assembly. Contamination and decomposition products are pumped away and only the purest vapor reaches the top jet, assuring highest speed and lowest backstreaming. The vacuum fluid heater is mounted at the bottom of the pump body. The HS pumps have a fill and drain assembly for easy maintenance of pump fluid and continuous monitoring with thermal protection switches. Finned boilers increase the surface area which prolongs fluid life. The inlet is at the top, and the exhaust is through the foreline.

Condition: New



Product Number: P106876



Price: $22,691.00



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Agilent Varian HS-20 Vacuum Diffusion Pump, 20 in. ASA, 27.5 in. OD, Std. Cold Cap, 17,500 l/s, 415V


These Agilent Varian High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-20 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanisms. The Agilent Varian HS-20 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pumps used in the same vacuum range. The full fractionating design allows vaporized fluid to be fractionated in the boiler and jet assembly. Contamination and decomposition products are pumped away and only the purest vapor reaches the top jet, assuring highest speed and lowest backstreaming. The vacuum fluid heater is mounted at the bottom of the pump body. The HS pumps have a fill and drain assembly for easy maintenance of pump fluid and continuous monitoring with thermal protection switches. Finned boilers increase the surface area which prolongs fluid life. The inlet is at the top, and the exhaust is through the foreline.

Condition: New



Product Number: P106877



Price: $20,905.00



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Agilent Varian HS-20 Vacuum Diffusion Pump, 20 in. ASA, 27.5 in. OD, Halo Baffle, 17,500 l/s, 415V


These Agilent Varian High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-20 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanisms. The Agilent Varian HS-20 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pumps used in the same vacuum range. The full fractionating design allows vaporized fluid to be fractionated in the boiler and jet assembly. Contamination and decomposition products are pumped away and only the purest vapor reaches the top jet, assuring highest speed and lowest backstreaming. The vacuum fluid heater is mounted at the bottom of the pump body. The HS pumps have a fill and drain assembly for easy maintenance of pump fluid and continuous monitoring with thermal protection switches. Finned boilers increase the surface area which prolongs fluid life. The inlet is at the top, and the exhaust is through the foreline.

Condition: New



Product Number: P106878



Price: $22,691.00



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Agilent Varian HS-20 Vacuum Diffusion Pump, 20 in. ASA, 27.5 in. OD, Std. Cold Cap, 17,500 l/s, 480V


These Agilent Varian High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-20 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanisms. The Agilent Varian HS-20 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pumps used in the same vacuum range. The full fractionating design allows vaporized fluid to be fractionated in the boiler and jet assembly. Contamination and decomposition products are pumped away and only the purest vapor reaches the top jet, assuring highest speed and lowest backstreaming. The vacuum fluid heater is mounted at the bottom of the pump body. The HS pumps have a fill and drain assembly for easy maintenance of pump fluid and continuous monitoring with thermal protection switches. Finned boilers increase the surface area which prolongs fluid life. The inlet is at the top, and the exhaust is through the foreline.

Condition: New



Product Number: P106145



Price: $21,536.00



 product photo

Agilent Varian HS-20 Vacuum Diffusion Pump, 20 in. ASA, 27.5 in. OD, Halo Baffle, 17,500 l/s, 480V


These Agilent Varian High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-20 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanisms. The Agilent Varian HS-20 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pumps used in the same vacuum range. The full fractionating design allows vaporized fluid to be fractionated in the boiler and jet assembly. Contamination and decomposition products are pumped away and only the purest vapor reaches the top jet, assuring highest speed and lowest backstreaming. The vacuum fluid heater is mounted at the bottom of the pump body. The HS pumps have a fill and drain assembly for easy maintenance of pump fluid and continuous monitoring with thermal protection switches. Finned boilers increase the surface area which prolongs fluid life. The inlet is at the top, and the exhaust is through the foreline.

Condition: New



Product Number: P106879



Price: $23,145.00



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Agilent Varian HS-20 Standard Cold Cap Baffle Replacement, Diffusion Vacuum Pump Parts, 84358301


These Agilent Varian HS-20 diffusion pump standard cold cap are a replacement part that can be installed at the customer's location. There are two types of cold caps, standard and Halo Baffle. The type of cold cap used will influence factors, such as, oil backstreaming and final pumping speed of the diffusion pump. For example, the standard cold cap is an option that fits inside the HS-20 pumps in place of the standard cold cap. The cold cap stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed. Residual backstreaming is so low that it cannot be measured by the American Vacuum Society’s standard collection method. For location of the cold cap please see item #1 on diagram exploded view & parts illustration shown below. For removal installation procedures of cold cap see page 38 of instruction manual PDF below. These cold caps are OEM original Agilent Varian replacement parts with part number K1855320.

Condition: New



Product Number: P106900



Price: $1,783.14



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Agilent Varian HS-20 Water Cooled Halo Baffle Replacement, Diffusion Vacuum Pump Parts, K1855320


These Agilent Varian HS-20 diffusion pump water cooled halo baffle are a replacement part that can be installed at the customer's location. There are two types of cold caps, standard and Halo Baffle. The type of cold cap used will influence factors, such as, oil backstreaming and final pumping speed of the diffusion pump. For example, the Halo Baffle Cold Cap is an option that fits inside the HS-20 pumps in place of the standard cold cap. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed. Residual backstreaming is so low that it cannot be measured by the American Vacuum Society’s standard collection method. For location of the cold cap please see item #1 on diagram exploded view & parts illustration shown below. For removal installation procedures of cold cap see page 38 of instruction manual PDF below. These halo baffles are OEM original Agilent Varian replacement parts with part number K1855320.

Condition: New



Product Number: P106898



Price: $3,457.11



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Agilent Varian HS-20 Foreline Baffle Assembly, Diffusion Pump Replacement Parts PN 84889301


These Agilent Varian HS-20 diffusion pump replacement foreline baffle assemblies are OEM Agilent Varian replacement parts with part number 84889301. The foreline baffle is located in the roughing line exhaust arm of the diffusion pump. They are designed to help prevent diffusion pump oil from being transported to the roughing pump under high throughput conditions. See the HS-20 diffusion pump roughing line arm noted by balloon #5 in the illustration below.

Condition: New



Product Number: P106899



Price: $706.80



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Agilent Varian HS-20 Jet Assembly Diffusion Pump Replacement Parts, PN 84350301


These Agilent Varian HS-20 diffusion pump jet assembly are OEM Agilent Varian replacement parts for the HS-20 diffusion vacuum pumps. This kit includes the complete jet assembly components, see the jet assembly referenced on page 40 in instruction manual PDF below. These are original OEM Agilent Varian replacement parts for the HS-20 diffusion pump having part number PN 84350301, see item #3 in the diagram exploded view & parts illustration below.

Condition: New



Product Number: P107115



Price: $10,932.01



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Agilent Varian HS-20 Jet Sprint Coupling Diffusion Pump Replacement Parts, PN L6367301


These Agilent Varian HS-20 diffusion pump Jet Sprint Coupling part, is part of the jet assembly and is a OEM Agilent Varian replacement part for the HS-20 diffusion vacuum pump. See referenced on Page 40 in instruction manual PDF below. These are original OEM Agilent Varian replacement parts for the HS-20 diffusion pump having part number L6367301, see item #4 in the diagram exploded view & parts illustration below.

Condition: New



Product Number: P106902



Price: $389.95



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Agilent Varian HS-20 Diffusion Pump, ASA O-Ring Kit, PN K0377165


Condition: New



Product Number: P106893



Price: $360.56



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Agilent Varian HS-20 Oil Sight Glass, Diffusion Vacuum Pump Replacement Parts, PN L9223001


This is a replacement Oil Sight Glass Service Kit. Fits the Agilent Varian HS-20 Diffusion Pump. For location of the sight glass kit see item #6 on (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P106895



Price: $302.88



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Agilent Varian HS-20 Oil Sight Glass Serv. Kit, Diffusion Vacuum Pump Replacement Parts, PN F6097301


This is a replacement Oil Sight Glass Service Kit. Fits the Agilent Varian HS-20 Diffusion Pump. For location of the sight glass kit see item #6 on (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P106896



Price: $374.33



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Agilent Varian HS-20 Cold cap and nut follower (2 each) Diffusion Pump Replacement Part, PN L8840301


These Agilent Varian HS-20 diffusion pump cold cap and nut follower (2 each), is part of the jet assembly and is a OEM Agilent Varian replacement part for the HS-20 diffusion vacuum pump. These are original OEM Agilent Varian replacement parts for the HS-20 diffusion pump having part number L8839301, see item #2 in the diagram exploded view & parts illustration below.

Condition: New



Product Number: P106897



Price: $290.87



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Agilent Varian HS-20 Cold Cap Gasket Grommet (kit of 4) Diffusion Pump Replacement Part, PN L8839301


These Agilent Varian HS-20 diffusion pump cold cap gasket grommet (kit of 4), is part of the jet assembly and is a OEM Agilent Varian replacement part for the HS-20 diffusion vacuum pump. These are original OEM Agilent Varian replacement parts for the HS-20 diffusion pump having part number L8839301, see item #2 in the diagram exploded view & parts illustration below.

Condition: New



Product Number: P107116



Price: $109.06



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Agilent Varian HS 20/32, NHS-35 Diffusion Pump Cold Cap Female Coupling 622445026


This Agilent Varian HS-20/32, NHS-35 diffusion pump cold cap female coupling, is part of the cold cap assembly and is an OEM Agilent Varian replacement part for the HS-20/32 and NHS-35 diffusion vacuum pump. This is an original OEM Agilent Varian replacement part for the HS-20/32 and NHS-35 diffusion pump having part number 622445026, see item #18 in the diagram exploded view & parts illustration below.

Condition: New



Product Number: P108405



Price: $78.80



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Agilent Varian HS-20 Dalton Heater Wire 10 AWG, Diffusion Vacuum Pump Replacement Parts, X3900-68000


This is a replacement heater nickle wire, 10 AWG, 120 inches long. Fits the Agilent Varian HS-20 Diffusion Pump. For location of the heater wire see figure #10 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P106882



Price: $327.00



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Agilent Varian HS-20 Heater Nickel Wire 14 AWG, Diffusion Vacuum Pump Replacement Parts, X3900-68006


This is a replacement heater nickle wire, 14 AWG, 80 inches long. Fits the Agilent Varian HS-20 Diffusion Pump. For location of the heater wire see figure #10 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P106881



Price: $135.66



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Agilent Varian HS-20 Upper Thermal Switch, Diffusion Vacuum Pump Replacement Parts, PN K9050001


This is a replacement upper thermal (water) switch. Fits the Agilent Varian HS-20 Diffusion Pump. Set at 185º F, 85º C. For location of the upper thermal switch see figure #8 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P107084



Price: $194.74



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Agilent Varian HS-20 Lower Thermal Switch, Diffusion Vacuum Pump Replacement Parts, PN K9050002


This is a replacement lower thermal (boiler) switch. Fits the Agilent Varian HS-20 Diffusion Pump. Set at 390º F, 199º C. For location of the upper thermal switch see figure #9 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P107085



Price: $194.74



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Agilent Varian HS-20 Diffusion Pump, Heater Insulation Blanket, 3 Pieces, L6514001


This is a replacement heater insulation blanket. Fits the Agilent Varian HS-20 Diffusion Pump. 3 pieces Cerablanket, 0.50 inch thick. For location of the insulation blanket see item #14 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P106901



Price: $244.84



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Agilent Varian HS-20 Lower and Upper Thermal Switch KIT, Diffusion Vacuum Pump Parts, PN L8841301


This is replacement thermal switches for the Lower (boiler) and Upper (water) switches. Fits the Agilent Varian HS-20 Diffusion Pump. Lower Switch Set at 390º F, 199º C. Upper Switch Set at 185º F, 85º C. For location of the upper and lower thermal switches see figure #9 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P107086



Price: $432.91



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Agilent Varian HS-20 Diffusion Pump, Replacement Clamping Plate, K7107001


Condition: New



Product Number: P106891



Price: $147.50



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Agilent Varian HS-20 Diffusion Pump, Heater Cover Plate, PN 84497001


This is a replacement heater cover plate. Fits the Agilent Varian HS-20 diffusion vacuum pump. For location of the heater cover plate see item #15 (diagram exploded view & parts illustration) below.

Condition: New



Product Number: P106892



Price: $249.51



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Albuquerque, NM 87109-5805

Phone: (505) 872-0037
Fax: (505) 872-9001
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