Position Indicator New position indicator is com pact and simple in design and pro vides a continuous meter reading up to 10 feet of mechanical travel on fluid level. High and low con tacts m a y be incorporated within the probe to operate remote warn ing devices. Equipped with a float traveler, the unit is ideal for exact measurement of fluid levels. Prices for the indicator range from $130 to $450. Dept. IEC, Gems Co., Inc., Sheppard Lane, Farmington, Conn. 1-2
JACKETED PIPE and FITTINGS H & B s t a n d a r d jacketed equipment gives complete jacketing of t h e prod uct line. Special jigs enable H & B t o insure uniformity of t h e j a c k e t area. Fittings and valves are available in cast or welded construction in all alloys including stainless steel. All H & B jacketed equipment is hydrostatically tested to 450 p.s.i. H & B welded steel jacketed fittings are ideally suited for process piping with pressures reaching 300 p.s.i. a n d t e m p e r a t u r e s u p t o 750 °F. . . . For more information send for bulletin J-57. HETHERINGTON
& BERNER
INC.
701 KENTUCKY AVE. INDIANAPOLIS 7. IND.
A Wholly Owned Subsidiary of American Hoist & Derrick ι
Circle No. 18 on Readers' Service Card
SAFE
A N D ECONOMICAL ELECTROLYTIC PLANT for the
UWIJPJVJJM)
PRODUCTION
OF HYDROGEN
99.5-0/0 PURE
Air or Gas Flow Monitor Fully compensated for tempera ture and rate of change of tempera ture, new flow monitor for air or gas streams has electrical output suit able for remote indication, control, or recording of mass flow rates. I n strument is a center reading flowIllustration shows plant recently installed in Spain and consists of 256 18,000 ampere cells producing 2,7 00 cu. meters per hour.
Knowlcs Electrolytic plant produces hydrogen of a constant high standard of purity, together with oxygen 99.8% pure. The plant is uniquely simple and safe and requires no highly skilled labour. Plants of all sizes up to a single installation absorbing 25,000 kW are in operation in all parts of the world. THE
INTERNATIONAL
SANDYCROFT U . S. A . A g e n t s : 94 A
ELECTROLYTIC CHESTER
PLANT
CO.
A I R P R O D U C T S , I N C . , P. O . B o x N o . 5 3 8 , A l l e n t o w n , Pa. Circle No. 19 on Readers' Service Card
INDUSTRIAL A N D ENGINEERING CHEMISTRY
LTD.
ENGLAND H O 43
