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| Lansdale Brass Extension Nipples |
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Designed to be used to correct sprinkler head elevation without removing or re-cutting sprinkler drop.
THIS PRODUCT IS COVERED BY ADDITIONAL DISCLAIMERS REGARDING SUITABILITY AND USE. PURCHASER AND USER TAKE FULL RESPONSIBILITY FOR THE USE OF THIS PRODUCT. LONG ISLAND PIPE SUPPLY WILL NOT BE HELD LIABLE FOR PRODUCT FAILURE OR DAMAGE CAUSED BY USE.
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| Model |
Size |
| 900-00040 |
1/2" x 1/2" IPS Br. Spr. Ext |
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| Brass Adapters, Extensions and Nipples |
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| Model |
Size |
| 900-01370 |
1-1/2" NST Rack Nipple, brass |
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| Eliminator Adjustable Drop Nipples |
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Models 'M' & 'F'
Merit Eliminator Adjustable Drop Nipples eliminate the need to cut drop nipples for positioning sprinkler assemblies flush to the finished ceiling.
Available in two models, female or male thread inlet, with three standard lengths with adjustment up to 3 inches (7.62 cm).
UL Listed, FM Approved, and BSA-NYC approved for installation to NFPA Bulletin 13 requirements. Vds Approved for the European market.
Cold formed from steel conforming to ASTM A-53, grades E or F.
Inner nipples employ two (2) "O-Rings" to provide added assurance of sealing.
The "F" Model is designed to keep "O-Rings" from impinging upon the one inch (1") inlet threads when fully retracted.
The bore of the outer nipple is precision formed to a tolerance of +/-.001" while held to a microfinish of 50 to provide for positive sealing of the "O Rings."
Each unit is hydrostatically tested to insure "O-Ring" integrity prior to shipment.
Each unit is marked with a lot number to insure full traceability.
Qualifying tests on all models are performed at 1500 PSI, while the various models are rated for 300 PSI operation.
Threads are cut to be better than or equal to the requirements of ANSI B1.20.1, NPT. BSP or DIN 2999 threads also available.
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| Model |
Inlet
NPT/ISO |
Outlet
NPT/NPT |
Min. Length
Inch/mm |
Max. Length
Inch/mm |
Max. Adjust
Inch/mm |
| M1.150* |
1" Male |
1/2" Female |
4.125 |
5.125 |
1.00 |
| M3.150 |
1" Male |
1/2" Female |
6.125 |
9.125 |
3.00 |
| ME3.150* |
1" Male |
1/2" Female |
7.875 |
10.875 |
3.00 |
| F1.150 |
1" Female |
1/2" Female |
3.5 |
4.5 |
1.00 |
| F2.150* |
1" Female |
1/2" Female |
4.5 |
6.5 |
2.00 |
| F3.150 |
1" Female |
1/2" Female |
5.5 |
8.5 |
3.00 |
| F3.175 |
1" Female |
3/4" Female |
6.820 |
10.000 |
3.00 |
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