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.

ITEM	DESCRIPTION	PART NO.
1	Standard Cold Cap Assembly - Includes 10-32 SST Rd Hd screw & 10-32 SST Hex nut	84358301
1	Water-Cooled Halo Baffle	K1855320
2	Cold Cap Water Connection: Cold Cap Gasket/Grommet (Kit of 4) L8839301 Cold Cap Nut & Followers Kit L8840301
3	Jet Assembly	84350301
4	Jet Coupling	L6367301
5	Foreline Baffle Assembly	84889301
6	Sight Glass Service Kit for Pumps Built Before 1995: 3 Glass Tubes F1755008 2 Brass Union 1/4 OD x 1/4 MPT 622568108 2 Brass Elbow 69FL 6x4, 169VL6-4 623451012 8 O-ring, Viton, Parker No. 2-011 660892011 8 O-ring, Viton, Parker No. 2-111 660892111 3 O-ring, Viton, Parker No. 2-221 660892221 3 O-ring, Viton, Parker No. 2-213 660892213	F6097301
6	Sight Glass Service Kit for Pumps Built After 1995	L9223001
6	Sight Glass Assembly for Pumps Built Before 1995: Seal Valve Glass Tube Removable Bracket Cover for Sight Glass Assembly Fittings	F1755301
7	Threaded Plug, Fill & Drain	77261001
8	Upper Thermal Switch, Temperature Setting 185°F	K9050001
9	Lower Thermal Switch, Temperature Setting 390°F	K9050002
10	Heater Nickel Wire 80 Inches, 14 AWG (2 per heater required)	X3900-68006
10	Dalton Heater Wire 120 inches, 10 AWG (2 per heater required)	X3900-68000
10b	Heater Wiring Connection Box
	Nickel Lug for No. 14 AWG	648056329
11	Heaters (six heaters required per pump) 200 V / 2000 watt Heater Element With Leads 647320025 240 V or 415V / 2000 watt Heater Element With Leads 647320020 240 V or 415V / 2000 watt Heater Element No Leads for pumps built before May '90 647320060 400 V / 2000 watt Heater Element With Leads 647320035 430 V / 2000 watt Heater Element With Leads 647320040 440 V / 2000 watt Heater Element With Leads 647320045 480 V / 2000 watt Heater Element With Leads 647320030 480 V / 2000 watt Heater Element No Leads for pumps built before May '90 647320070
12	Heater Crush Plate, replace with each heater	K7108001
13	Heater Clamping Plate	K7107001
14	Heaters Insulation, Cerablanket 0.50" Thick	L6514001
15	Heater Cover Plate	84497001
	O-Ring Kit includes: 1 Butyl O-ring for ASA Inlet Flange 84349002 1 O-ring for Foreline Flange 660893432 8 Fill and Drain O-rings, Viton Parker 2-213 660892213 4 O-rings, Viton Parker 2-221 660892221 1 Sight Glass O-ring 660892240 1 Graphite Sight glass Gasket L9228001	K0377165
16	Butly Centering Ring for ASA Inlet Flange	84349002
17	Centering Ring for ASA Foreline Flange	660893432
17	Centering Ring for ISO Foreline Flange, 160K	IC160SV
	Included with ASA pumps: 16 One O-ring for ASA Inlet Flange 84349002 17 One O-ring for ASA Foreline Flange 660893432 18 Two Water Coupling for Cold Cap 622445026 Two 1/2" Hose 3/8 Pipe Barbed Connectors 624301111 Four 3/8" Hose 3/8 Pipe Barbed Connectors 624301110 Installation and Operation Manual 699901140
	DC-702 diffusion pump fluid, one gallon	695472008
	DC-704 diffusion pump fluid, one gallon	695474008
	DC-705 diffusion pump fluid, one gallon	695475008