Amico NFPA Triplex RVL Modular Stack Mount - Manual (Page 16)

Amico Source Equipment
Oil-Less Rotary Vane:
1. Provide completely dry pumps equipped with self-lubricating carbon/graphite vanes. Bearings shall
be lubricated and sealed. No oil is permitted in the pump. Each pump is completely air-cooled
and has \absolutely no water requirement. Each pump is fitted with a 5micron inlet filter and
is equipped with a vacuum relief valve, check valve to prevent backflow through off-cycle units,
flexible connector, isolation valve, and vibration isolators at each mounting location. Pumps
are provided by Amico or pre-approved equal.
Water-Sealed Liquid Ring
1. Provide oil-free, single-stage positive displacement, and non-pulsating liquid ring type pumps. The
pump will be fitted with mechanical seals. Each pump will be of all iron construction with a bronze
or stainless rotor and carbon steel shaft. Maintenance intervals are calendar based and no
hours based maintenance are required. Under normal operation, system shall minimize usage of
fresh seal water. The system shall include a minimum of 50% water re-circulation. System is
self contained. Pumps are provided by Amico or pre-approved equal.
APPLICABLE TO ALL PUMPS
2. Each pump shall have a built-in anti-suck-back valve mounted at the pump inlet. Each pump
shall be equipped with one pump isolation ball valve, one inlet check valve and one inlet stainless
steel flex connector. (Option: One bacterial removal inlet filter. The bacterial filter shall meet the
requirements of the D.H.S.S. for infectious disease units with complete bacterial removal to
0.0001% penetration.)
3. Each vacuum pump shall be direct-driven through a shaft coupling by a NEMA C-face motor, TEFC,
NFPA approved electric motor wired for operation on a ____ volt, ____ hertz, 3 phase power supply.
Belt drives shall not be permitted.
B. Receiver
The receiver is to be made of ferrous and/or non-ferrous materials, be capable of withstanding a gauge pressure
of 200 psi and 29.9” gauge HgV. The receiver shall be epoxy-lined sized in accordance with the requirements of the
medical vacuum system and in compliance with all the requirements with Section VIII, unfired pressure vessels of the
ASME Boiler and Pressure Vessel Code. The receiver shall also include:
1. The inside of the receiver consists of a two-part epoxy coating providing rust
protection equal or better than that achieved by galvanizing.
2. Manual drain valves.
3. Liquid level indicator.
4. Source shut off valve.
5. Equipped with a means for bypassing the receiver to allow repair and maintenance.
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