Instruction manual

High Throughput Diffusion Pumps

DRAFT 12/23/04

Table 19 NHS-35 Replacement Parts

Part Number Description

81437301 Cold cap assembly (includes No.10-32 SST Rd Hd screw and No. 10-32 hex nut) SST

660811494 Cold cap gasket

F2622001 Cold cap follower (brass)

75786001 Cold cap nut

622445026 Cold cap female coupling, 1/2" OD tube x 3/8" FPT, Imperial Flexfitting No. 66-FL

F1971302 Jet assembly

F1744301 Foreline baffle assembly

F6097301 Sight glass service kit (includes glass tube, O-rings, and fittings; valves not included)

For pumps built prior to October 1995)

77261001 Threaded plug, fill and drain

K9050005 Upper thermal switch, Temperature setting: 200 °F

K9050006 Lower thermal switch, Temperature setting: 600 °F

647335010 Heater element with leads (4000 W, 240 V, 415 V, 480 V)

L6383010 Heater element with leads (4000 W, 400 V)

L6383011 Heater element with leads (4000 W, 440 V)

F1749001 Clamping plate (no crushplate in NHS-35)

L6514001 Insulation for heaters – Cerablanket 0.50" thick

L9223001 Sight glass (for pumps built after October 1995)

K0377169 O-ring kit; includes: 1 Butyl O-ring for ASA inlet flange (78536001

❑ 1 Butyl O-ring foreline flange (2-267)

❑ 8 Viton O-rings fill and drain (2-213)

❑ 1 Sight glass O-ring (2-240)

❑ 1 Graphite sight glass gasket (L9228001)

❑ 4 Viton O-rings (2-221)

695472008 DC-702 diffusion pump fluid, one-gallon

695474008 DC-704 diffusion pump fluid, one-gallon

695475008 DC-705 diffusion pump fluid, one-gallon

78536002 O-ring for ISO inlet flange