These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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.

These Varian Agilent High Throughput models include the series HS-16, HS-20, HS-32 and NHS-35. This is the HS-32 diffusion high throughput vacuum pump. They are the primary industrial standard for high vacuum pumping mechanism. The Agilent Varian HS-32 diffusion pumps have a high pumping speed for all gases and low cost per unit pumping speed when compared with other types of pump 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. The Halo Baffle stops backstreaming as effectively as an optically dense baffle, yet it retains 60% of the pump’s speed.

These Agilent Varian HS-32 diffusion pump standard cold caps 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-32 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 standard cold caps are OEM original Agilent Varian replacement parts with part number 77252801.

These Agilent Varian HS-32 diffusion pump jet assembly are OEM Agilent Varian replacement parts for the HS-32 diffusion vacuum pumps. This kit includes the complete jet assembly components and cold cap, see the jet assembly referenced on page 40 in instruction manual PDF below. These are original OEM Agilent Varian replacement parts for the HS-32 diffusion pump having part number PN 76511301, see item #3 in the diagram exploded view & parts illustration below.

This is the Agilent Varian NHS32, NHS-32 in. (ASA 35 in.) Diffusion Pump O-Ring Kit. O-Ring Kit Contains: 1 Butyl inlet flange O-ring, ASA 32 inch 1 Foreline flange O-ring, ASA 6 inch 8 Viton fill and drain O-rings 4 Viton O-rings 1 Sight glass O-ring 1 Graphite sight glass gasket

These Agilent Varian HS-32 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-32 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 K1856332.

This is the Agilent Varian HS-32 Diffusion Pump, ISO 200K Outlet Foreline O-Ring.

This is a replacement Oil Drain Plug. Fits the Agilent Varian HS-32 Diffusion Pump. For location of the oil drain plug see figure #7 (diagram exploded view & parts illustration) below.

This is a replacement Oil Sight Glass Service Kit. Fits the Agilent Varian HS-32 Diffusion Pump. For location of the sight glass kit see item #6 on (diagram exploded view & parts illustration) below. For pumps built before OCT. 1995.

This is a replacement Oil Sight Glass. Fits the Agilent Varian NHS-32 Diffusion Pump. For location of the sight glass kit see item #7 on (diagram exploded view & parts illustration) below. For pumps built after OCT. 1995.

This is an Agilent Varian replacement graphite gasket for the oil sight glass on HS-20, HS-32, and HS35 diffusion pumps. For location of the sight glass on the pump see item #7 on (diagram exploded view & parts illustration) below. For pumps built after OCT. 1995.

This is the Agilent Varian HS-32 Diffusion Pump, ISO 800F Inlet O-Ring.

This is a replacement heater nickle wire, 10 AWG, 196 inches long. Fits the Agilent Varian HS-32 Diffusion Pump. For location of the heater wire see figure #11 (diagram exploded view & parts illustration) below.

This is a replacement clamping plate. (1 each) Fits the Agilent Varian HS-32 Diffusion Pump. 6 required per pump. For location of the clamping plate see item #14 (diagram exploded view & parts illustration) below.

This is a replacement crush plate.(1 each) Fits the Agilent Varian HS-32 Diffusion Pump. Should be replaced when heater is replaced. For location of the crush plate see item #13 (diagram exploded view & parts illustration) below.

This is a replacement heater insulation blanket. Fits the Agilent Varian HS-32 Diffusion Pump. 1 Cerablanket, 0.50 inch thick. For location of the insulation blanket see item #13 (diagram exploded view & parts illustration) below.

This is a replacement lower thermal (boiler) switch. Fits the Agilent Varian HS-32 Diffusion Pump. Set at 550º F, 288º C. For location of the lower thermal switch see figure #9 (diagram exploded view & parts illustration) below.

This is a replacement lower thermal switch. Fits the Agilent Varian HS-32 Diffusion Pump. Set at 220º F, 104º C. For location of the lower thermal switch see figure #9 (diagram exploded view & parts illustration) below.

This is a replacement heater cover plate. Fits the Agilent Varian HS-32 Diffusion Pump. For location of the heater cover plate see item #16 (diagram exploded view & parts illustration) below.

This is a replacement thermal switch block made of brass. Fits the Agilent Varian HS-32 Diffusion Pump. See illustration #10 below for location.

This is a replacement diffusion pump heater element with leads, 4000W, 200V, for HS-32 Diffusion Pumps.

This is a replacement diffusion pump heater element with leads, 4000W, 240V/415V/480V, for HS-32 Diffusion Pumps.

This is the HS-32 Diffusion Pump 240/400/440 VAC Heater Retrofit Kit. Fits the Agilent Varian HS-32 Diffusion Pump. (for pumps built before May 1990) Clamping plates not included.

This is the HS-32 Diffusion Pump 415 VAC Heater Retrofit Kit. Fits the Agilent Varian HS-32 Diffusion Pump. (for pumps built before May 1990) Clamping plates not included.

This is the HS-32 Diffusion Pump 480 VAC Heater Retrofit Kit. Fits the Agilent Varian HS-32 Diffusion Pump. (for pumps built before May 1990) Clamping plates not included.

This is a replacement diffusion pump heater element no leads, for HS32 Diffusion Pump, 4000W, 240V/415V/480V, used on pumps built before May '90 (six heaters required per pump) One heater consists of 2-120V heaters, right and left.

These are bolts to attach ASA Gate Valves to ASA Diffusion pumps, ASA sizes 6, 8 and 10 inch. One each, size 3/4-10 1-1/4" Length Hex Bolt - Course Thread.