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The
Handy Roll-Up Manometer With Laboratory Accuracy
Simply unroll the Dwyer Slack-TubeŽ Manometer and set up to read static pressure, vacuum, or differential pressure. Magnetic clips hold it firmly to any steel surface or hang it on a nail. Turn connectors one revolution to open. When the pressure is imposed, add the number of inches one column travels up to the number of inches the other column travels down. When reading is completed turn connectors to seal columns, roll up manometer into compact coil and tuck it away in its circular metal case or a tool box. No fluid lost. No loose caps or inserts to lose. Dwyer Slack-TubeŽ Manometers cover a wide range of pressure readings - from 4-0-4 inches up to 60-0-60 inches. Use them in determining velocity and static pressures, for leakage, fan and blower tests, calibrating control devices, checking gas pressure and many other applications. All models have flexible vinyl-plastic columns and flexible spring steel scale calibrated in inches of water using water; and inches of mercury using mercury. Scale is center-mounted between columns to eliminate parallax error and has a full 2" sliding zero adjustment. All Dwyer Slack-TubeŽ Manometers feature exclusive molded nylon tubing connector assemblies with rapid shutoff design in an acrylic plastic top (see Fig. 5-3) One turn counter clockwise and the instrument is ready for use. Another turn seals the tubes completely. Molded all-nylon construction makes this assembly corrosion-proof, leakproof and practically unbreakable. Tubing connectors extend horizontally allowing 360° freedom. Tubes won't bend or pinch off. All models have over pressure safety traps in the top of both columns to prevent loss of fluid due to over range pressures or surges in pressure. See Fig. 7-3. Slack-TubeŽ Manometers are suitable for intermittent total pressure to 50 psi and vacuum not exceeding 20" Hg. Avoid temperatures above 130°F and continuous high total pressure. Not for use with red gage oil; use only water or mercury.
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OPERATING
RANGES
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STANDARD
ACCESSORIES are metal carrying case, magnetic mounting clips, two
rapid shutoff type molded nylon rubber tubing connectors and one bottle
of fluorescein green color concentrate with wetting agent. Mercury is
not included but will be furnished at added cost when specified. OPTIONAL ACCESSORIES are available in a wide choice and are listed in Accessory Bulletin No. S-101. |
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No. 1212 Gas Pressure Kit For Servicing Gas Appliances |
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A handy, complete kit containing a 16" Slack-TubeŽ Manometer, necessary tubing and connection fittings for checking gas pressures in virtually all gas appliances such as water heaters, furnaces, stoves and dryers. Different range manometers may be specified at corresponding prices. Compared to the cost of purchasing items separately the assembly of component parts into kit form represents substantial savings. | |||||||||||||||||||||||||||||||||||||||||||||
| What
the kit consists of: 1 - #1211-16 Slack-TubeŽ Manometer, reads pressure to 16" water* 1 - Carrying case, plastic, 8 ˝" x 7" x 3 1/8" 1 - ž oz. Bottle Fluorescein green color concentrate with wetting agent 1 - 1/8" pipe thread rubber tubing adapters - See Accessory Bulletin S-101 1 - 1/8" to ź" pipe thread bushing 1 - 3 ft. length 3/16" rubber tubing 1 - Rubber tubing adapter to fit standard 7/16" diameter spud. *Other ranges available |
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