Table 1-1. Characteristics and Reference Data

TM 55-1905-223-24-7

ab. Check Valves. Two check valves (FIGURE 1-7) are installed on inlet lines to the brine manifold to protect

watermaker components from backflow out of the manifold. Check valves are fabricated of molded plastic.

1-9.

Equipment Data. Characteristics and reference data for the watermaker are given in Table 1-1. Also see the

equipment data in the operator's manual TM 551905-223-10.

Table 1-1. Characteristics and Reference Data

Characteristic

Reference Data

Reverse Osmosis Watermaker

Model PW800

Product Water Production

600-800 gallons per day at 770F (250C)

Product Water Quality

500 parts per million total

dissolved solids or less

RO Permeators

Spiral wound, thin-film composite

elements (2 each) each producing

400 gallons per day 15%

Salt rejection

98.6%

Water Recovery

20% (approximately)

Power Requirements

220 Vac/60Hz, three phase

Operating Current (at 220 Vac)

13.0 amperes

Operating Pressure

800-1,000 psi

Filtration

Cartridge prefilter (5 micron)

Operating Weight

400 lb (185.7 kg)

Operating Temperatures

320F (0C) to 1130F (450C)

pH range

pH3 to pH11

Pump

Model D105516

Maximum pressure

1,000 psi

Maximum capacity

10 gallons per minute

Maximum speed

1,725 rpm

Weight

40 lb (18.1 kg)

Lube oil reservoir capacity

1 quart (.946 liter)

Shaft rotation

Reversible

1-15