ISO Modular Piping
- Recommended for vacuum to 10-7 torr, temperatures to 200°c
- For systems requiring frequent disassembly
- Use a hinged clamp and centering ring for every connection
INLET AND EXHAUST CONNECTORS
- For adding an exhaust line for DIRECTORR and DUOSEAL 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, 8905, GEM (8890), 8803, 8804 | 7/16 | 1393J $44.60 |
NW 16 | 1.12 |
1393F $48.60 |
| 1402, 1405, 1380, 1376, 8907, 8912, 8917, 8920, 8925 | 13/16 | 1393K $74.70 |
NW 25 | 1.2 |
1393G $86.00 |
| 1374, 1375, 1397 | 1-5/8 | 1393L $95.90 |
NW 40 | 1.4 |
1393H $115.00 |
| 1402, 1405 | 7/16 | 1393J $44.60 |
NW 25 | 1.2 |
1393G $86.00 |
- All models except GEM (8890), 8803 and 8804.
HINGED CLAMPS
- Aluminum
- Closure by wing nut and bolt
| ISO | A | B | CLAMP WIDTH | CAT. NO. |
|---|---|---|---|---|
| NW 16 | 2.612 | 1.625 | 0.612 |
302201 $23.30 |
| NW 25 | 2.965 | 1.950 | 0.612 |
302202 $26.40 |
| NW 40 | 3.735 | 2.600 | 0.625 |
302203 $34.80 |
CENTERING RING ASSEMBLIES/REPLACEMENT O-RINGS
- Stainless steel centering ring with o-ring
- Replaceable Fluoroelastomer o-ring seal
- Use to 150 degrees C
| ISO | CENTERING RING ASSEMBLY | REPLACEMENT O-RING | |||
|---|---|---|---|---|---|
| A | CAT. NO. | B | C | CAT. NO. | |
| NW 16 | 0.630 | 303101 $17.10 |
0.210 | 0.725 |
304801 $8.30 |
| NW 25 | 0.984 | 303102 $26.30 |
0.210 | 1.100 |
304802 $9.30 |
| NW 40 | 1.575 | 303103 $34.70 |
0.210 | 1.600 |
304803 $11.40 |
- 1. Adapts NW 10 to NW 16.
BLANK-OFF FLANGES
- Stainless steel
- To close off unused ports
| ISO | B | CAT. NO. |
|---|---|---|
| NW 16 | 0.20 |
388101 $21.70 |
| NW 25 | 0.20 |
388102 $21.70 |
90° ELBOWS
- Stainless steel
- Same size flange on both ports
| ISO | A | CAT. NO. |
|---|---|---|
| NW 16 | 1.50 |
383101 $118.70 |
| NW 25 | 2.04 |
383102 $126.30 |
TEES
- Stainless steel
- Same size flange on all ports
| ISO | A | CAT. NO. |
|---|---|---|
| NW 16 | 1.50 |
384101 $171.50 |
| NW 25 | 2.04 | 384102 $213.00 |
REDUCERS
- Mates differing sizes of ISO flanges
- Stainless steel
| ISO | A | CAT. NO. | |
|---|---|---|---|
| F1 | F2 | ||
| NW 25 | NW 16 | 0.555 |
387121 $101.60 |
| NW 40 | NW 16 | 0.555 | |
| NW 40 | NW 25 | 0.900 | 387132 $115.60 |
MALE PIPE ADAPTERS
- Male stubs have 1/8 in. to 3/4 in. NPT
- Hex shank
- Stainless steel
| ISO | NPT | A | B | CAT. NO. |
|---|---|---|---|---|
| NW 16 | 1/4 | 0.281 | 1.6 |
505121 $139.10 |
| NW 25 | 1/8 | 0.188 | 1.6 | |
| NW 25 | 1/4 | 0.281 | 1.6 | |
| NW 25 | 1/2 | 0.496 | 1.6 | |
| NW25 | 3/4 | 1.6 |
FEMALE PIPE ADAPTERS
- Female stubs have 1/8 in. to 3/4 in. NPT
- Stainless steel
- Can be used with many gauge probes including Welch No. 1515A and 1516A
- Can be used with brass hose barbs
| ISO | NPT | A | B | CAT. NO. |
|---|---|---|---|---|
| NW 16 | 1/8 | 0.62 | 0.50 | |
| NW 16 | 1/4 | 0.62 | 0.50 |
506121 $51.60 |
| NW 25 | 1/8 | 0.88 | 0.50 | |
| NW 25 | 1/4 | 0.88 | 0.50 |
506122 $76.90 |
| NW 25 | 1/2 | 0.88 | 0.50 |
506142 $83.80 |
