Vacuum Hose & Connectors
Hose Nipple Connection
Hose to ISO Connections
- Recommended for vacuum to 10-3 Torr
- Use a hose clamp on every hose ending
- Use hose to ISO connections for frequent detachment/reattachment
RED VACUUM HOSE/HOSE CLAMPS
- Very thick walled hose for vacuum or pressure applications
- Quick-acting clamp tightened by a thumbscrew actuated worm screw
| HOSE1 | CLAMPS (PKG OF 10) | ||||
|---|---|---|---|---|---|
| I.D. | WALL THICKNESS | O.D. | LENGTH | CAT. NO.1. | CAT. NO. |
| 3/16 | 5/16 | 3/4 | 5' | 331020-5 $47.63 |
|
| 10' | 331020-10 $95.48 |
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| 7/16 | 5/16 | 1-1/16 | 5' |
331040-5 $45.24 |
305340 $29.27 |
| 10' | 331040-10 $91.14 |
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| 5/8 | 3/8 | 1-3/8 | 5' |
331050-5 $88.36 |
305350 $31.27 |
| 10' | 331050-10 $130.42 |
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| 25' | |||||
| 13/16 | 3/8 | 1-9/16 | 5' |
331060-5 $88.92 |
305360 $40.62 |
| 10' | 331060-10 $182.28 |
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| 15' | 331060-15 $262.74 |
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| 1 5/8 | 11/16 | 3 | 5' | 331080-5 $209.35 |
305380 $57.53 |
| 10' | 331080-10 $387.17 |
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- Hose is supplied in 5 ft (1.5 m) increments, please specify length with the catalog number. Example: 331020-5 is 5 ft of 1/4in. I.D. hose, 331050-10 is 10 ft of 5/8 in. I.D. hose. If no length is specified, a 5 ft length will be supplied.
RUBBER HOSE ADAPTERS
- ISO NW to rubber vacuum hose
- Aluminum
| ISO | HOSE I.D. | A | B | CAT. NO. |
|---|---|---|---|---|
| NW 16 | 7/16 | 0.625 | 1.65 |
501241 $28.82 |
| NW 16 | 5/8 | 0.750 | 1.65 |
501251 $28.82 |
| NW 25 | 13/16 | 0.875 | 1.73 |
501262 $32.27 |
| NW 40 | 1-5/8 | 1.63 | 2.17 |
501283 $36.50 |
INLET AND EXHAUST CONNECTORS
- For adding an exhaust line for Welch Direct Drive and DUOSEAL Belt Drive pumps
- Connectors for vacuum hose and ISO NW
- Also fit pump inlet ports1.
- For vacuum pumps produced in 1994 and later (Consult your owners manual for earlier models)
| PUMP MODELS | HOSE CONNECTOR | ISO CONNECTOR | |||
|---|---|---|---|---|---|
| HOSE I.D. | CAT. NO. | ISO NW | A | CAT. NO. | |
| 1399, 1400, 1405, 8905, 8910, GEM (8890), 8803, 8804 | 7/16 | 1393J $39.17 |
NW 16 | 1.12 |
1393F $42.50 |
| 1402, 1380, 1373, 1376, 8915, 8920, 8920S, 8925,8917,1405 | 13/16 | 1393K $65.10 |
NW 25 | 1.2 |
1393G $75.67 |
| 1374, 1397 | 1-5/8 | 1393L $84.35 |
NW 40 | 1.4 |
1393H $102.26 |
| 1402,1405 | 7/16 | 1393M $91.14 |
NW25 | 1.2 |
1393G $75.67 |
- All models except GEM (8890), 8803 and 8804.
HOSE ADAPTER KITS/HOSE ADAPTERS/HOSE VALVES
1420H-01
- Kits ensure proper sized tubing, adapters, and clamps for vacuum tight connections
- Kits include at least 5 ft of thick walled rubber vacuum hose
- Adapters and valves are made of chemical resistant plastics
| ADAPTER KITS FOR PUMP MODELS | PUMP INLET O.D. | APPLIANCE CONNECTOR O.D. | CAT. NO. |
|---|---|---|---|
| GEM (8890), 8803, 8804 | 3/8 | 7/16 and 1/2 |
1420H-01 $155.01 |
| 1400, 1405, 1399, 8905, 8910 | 7/16 | 1/4 and 3/8 |
1420H-01 $155.01 |
| 1402, 1380, 8915, 8920, 8920S, 8925 | 13/16 | 1/4 and 3/8 |
1420H-02 $155.01 |
| 1402, 1380, 8915, 8920, 8920S, 8925 | 13/16 | 13/16 | |
| REDUCER/ADAPTERS. FOR PUMP MODELS | HOSE I.D. PUMP SIDE | HOSE I.D. APPLIANCE SIDE | CAT. NO. |
| 1400, 1405, 1399, GEM (8890), 8803, 8804, 8905, 8910 | 1/4, 3/8, and 7/16 | 1/4, 3/8, and 7/16 |
357220 $12.80 |
| 1402, 1380, 8915, 8920, 8920S, 8925 | 13/16 | 3/8 |
357630 $12.80 |
