Greening Project.pdf

RIO PIEDRAS, P. R. OO925

TEL. (787) 763-5190 / 751-9374

1111 HUMACAO ST., SANTA RITA

JORGE A. TORRES SCANDALI

MECHANICAL ENGINEER, LIC. 10906

MECHANICAL ENGINEER, LIC. 4951

CONSULTING ENGINEERS

JORGE TORRES LOPEZ

1111 HUMACAO ST., SANTA RITA

JORGE A. TORRES SCANDALI

MECHANICAL ENGINEER, LIC. 10906

MECHANICAL ENGINEER, LIC. 4951

1111 HUMACAO ST., SANTA RITA

JORGE A. TORRES SCANDALI

MECHANICAL ENGINEER, LIC. 10906

MECHANICAL ENGINEER, LIC. 4951

4'-4"

2,400 GALLONS

ABOVEGROUND PLASTIC

TANK

2,400 GALLONS

ABOVEGROUND PLASTIC

TANK

SCALE: 1/2"=1'-0"

12'-6"

7'-6"

RIO PIEDRAS, P. R. OO925

TEL. (787) 763-5190 / 751-9374

1111 HUMACAO ST., SANTA RITA

JORGE A. TORRES SCANDALI

MECHANICAL ENGINEER, LIC. 10906

MECHANICAL ENGINEER, LIC. 4951

CONSULTING ENGINEERS

JORGE TORRES LOPEZ

64"

77 12"

1,000 GALLONS

ABOVEGROUND

PLASTIC TANK

1,000 GALLONS

ABOVEGROUND PLASTIC

TANK

SCALE: 1/2"=1'-0"

SPECIFICATIONS:

Furnish and install a knockdown field erected one-pump water pressure booster system. The system shall be capable of automatically providing system pressure of 40 psig while supplying a flow rate from 0 to 13 GPM. The system shall also provide complete pump shut down during low flow periods while maintaining constant system pressure.

PUMPS

The pumps shall be Aurora constant speed vertical multi-stage diffuser pumps with stainless steel shafts, stainless steel impellers, and a tungsten carbide mechanical seal. Pump shall be model ( ) rated 13 GPM at 93 ft. TDH driven by a 3/4 H.P., 115/230 volts, 60 hertz, 1 phase, 3500 RPM, open drip proof vertical solid shaft motor. Each motor shall meet NEMA standards and operate within the nameplate horsepower at any point on the pump capacity head curve.

PUMP SEQUENCING

000 to 13 GPMéééééééééééé..Pumps No 1 only shall run

The pumps shall be sequenced On and Off by factory set, direct sensing pressure switches.

LEAD PUMP SHUTDOWN CONTROLS

Provide a precharge tank of 20 gallon 125 psig rated. Construction features shall include a durable interior air cell fully replaceable and constructed of heavy gauge polyethylene and a fiberglass-wound and epoxy resin-sealed outer shell. The tank shall be bottom fed and capable of 100% draw down.

In addition, provide a spring loaded, non-slam silent check valve on each pump discharge line with full size feedline pipeline, isolation valves and a flow control and check valve. The tank shall be located with the pumps and the feedline connections from the tank shall be taken from the system manifold to assure constant system pressure and prevent leaks back to suction.

POWER AND CONTROL PANEL

Furnish a NEMA 4X single enclosure power and control panel. Enclosure shall be made of high quality fiberglass adequate for outdoor installation. It shall house all control components and include control power switch, indicating lights, audio visual alarm system, low level and high level relays and other necessary controls. Include for each pump a motor circuit protector, a magnetic starter with 3-leg overload protection, a running light, and multiple position selector switch.

INSTRUMENTATION AND EMERGENCY CONTROLS

Include individual pressure gauges for indicating each pump, system and tank pressure. Provide antivibration pads for each pump.

GUARANTEE

The system shall be guaranteed for a period of one year from date of shipment against defects in design, materials, or construction, subject that proper maintenance is provided.

START UP SERVICE

The service of a representative shall be made available on the job-site to check installation and start-up and instruct operating personnel.

ACCESSORIES

ONE

(1)Roberts direct acting bronze float valve. Valve size shall match the make up line size.THREE

(3)MDI Normally Open float switch with counterweight.ONE

(1)Strataflo 1ò non-slam check valveSET OF:Pressure switches, antivibration pads, pressure gauges, flow control and check valve.