Zenith B Spécifications télécharger pdf (Page 2)

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Zenith

®

Thoroughly read and understand this entire manual

before installation and operation of pump.

Benefits

Specifications

In 1926, Zenith Pumps was approached

by the synthetic fiber industry to design

a pump that would provide precise,

pulseless and repeatable flow while

ensuring ultimate product quality. The

options then were the same as those in

the chemical process industry today—

diaphragm, lobe, coarse gear, piston,

plunger and screw pumps. Each has

problems with pulsation, flow inaccura-

cies, multiple seal areas and slip, which

require constant calibration, high main-

tenance and extended downtimes.

Zenith Pumps met the challenge

and designed a rotary external gear

pump of unique precision and simplicity.

Manufacturing techniques were devel-

oped to hold tolerances to ±.00005",

minimizing internal clearances and

assuring accurate and precise metering.

The pump’s simplistic design of only

three moving parts – two metering gears

and a drive shaft – provided long life

and reduced maintenance.

For years, engineers have relied on

Zenith to provide precision fluid han-

dling solutions for their most difficult

pumping applications. Zenith gear

pumps can be found wherever precise,

pulseless, and repeatable metering of

fluids is required.

High Accuracy — Stable, repeatable

flows are assured even under varying

conditions of temperature, viscosity and

pressure.

Precision Construction — Ground and

lapped components allow for operating

clearances to .00015" and provide high

volumetric efficiency.

Minimum Pulsation — Unique design

offers virtually pulseless flow without

valves or flexible elements to hinder

performance.

Active Flowmeter Concept —

Unparalleled mechanical precision,

combined with the closed loop set point

accuracy, ensures an exact volume

per revolution without expensive flow

meters.

Low Cost of Ownership — With only

three moving parts and 400 series

stainless steel construction, the pump

provides excellent corrosion resistance

for most chemical processes, and is

through-hardened to 54 R

c

or better for

maximum life.

Experience — Zenith has over 74

years of application experience with

engineers available 24 hours a day to

support your precision fluid metering

needs.

Capacities (cc/rev): 0.05, 0.3, 0.6, 1.2,

2.4, 4.5, 9.0, 15, 30, 45, 90

Recommended Speed:

.05 to 30 cc/rev, up to 500 RPM

45 & 90 cc/rev, up to 300 RPM

Flow Range:

up to 27,000 cc/Minute, (7 GPM)

Inlet Pressure: 300 psi (20 Bar) Max.

Outlet Pressure: 1000 psi (70 Bar) Max.

Differential Pressure:

20 to 1000 psi. (viscosity dependent)

Temperature:

0° F (-18° C) Minimum

400° F (205° C) Maximum (with magnetic

coupling seal)

645° F (340° C) Maximum (dependant on

shaft seal materials)

Seals:

Single Mechanical, Double Lip,

Packed or Magnetic

Rotation:

Clockwise (CW) facing drive shaft

Port Connections:

Metric thread or SAE 61 Standard

Optional Port Adapters:

M12 X 1/4" NPT . . . . . . . . . 0.05 – 2.4 cc/rev

1/2" SAE X 1/2" NPT

. . . . . . 4.5 – 9.0 cc/rev

3/4" SAE X 3/4" NPT

. . . . . . . 15 – 30 cc/rev

1-1/4" SAE X 1-1/4" NPT. . . 45 – 90 cc/rev

Optional Band heaters:

150 Watt, 115 VAC . . . . 0.05 – 2.4 cc/rev

325 Watt, 115 VAC . . . . 4.5 – 9.0 cc/rev

650 Watt, 230 VAC . . . . . 15 – 30 cc/rev

1500 Watt, 230 VAC . . . 45 – 90 cc/rev

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