Barber-Coleman
Bendix-Westinghouse Hotochamber
Fisher Governor
Conollow
Foxboro Reversible Stabiflo
General Controls Hydramotor
Grinnell Piston
Hammel-Dahl Close-Coupled
GRINNELLSAUNDERS DIAPHRAGM VALVES with famous name Grinnell Air Motor, Grinnell Air Motor, Double-Acting Spring Loaded
Hammel-Dahl Preloaded
Kieley & Mueller
POWER OPERATORS
Mason-Neilan
Minneapolis-Honeywell
/ ^ R I N N E L L - S A U N D E R S D i a p h r a g m Valves are easily ^""^ equipped for power operation — by combining any of numerous power operators, a sliding stem bonnet assembly, and a valve body. The sliding stem bonnet can be modified to accommodate any make of power operator, pneumatic or electric. Grinnell-Saunders Diaphragm Valves are unsurpassed for handling materials as diversified as corrosive fluids, gases, beverages, foods . . . in lines where corrosion, abrasion, contamination, clogging, leakage and maintenance are costly factors. T h e operating principal of the Grinnell-Saunders Diaphragm Valve is simple. The resilient, flexible diaphragm is lifted high when the compressor is raised and pressed tight against the body weir when the compressor is lowered. Grinnell valves are available with body, lining, and diaphragm materials to meet different service conditions. For further information, write Grinnell Company, Inc., 249 West Exchange St., Providence, R. I. Grlnnell Company, Inc., Providence, Rhode Island
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Philadelphia Gear Limitorque
Taylor Motosteel
-stem This sliding stem bonnet is specially designed adapter for p o w e r o p e r a t i o n . bonnet T h e power operator is compressor pin attached to the adapter compressor b o n n e t and to the finger plate threaded end of its free- diaphragm sliding stem. Thus, the •operating force is app l i e d directly. The stem, in turn, is directly connected to the compressor which opens and closes the valve when power is applied. This sliding stem bonnet is interchangeable with other bonnet designs.
GRINNELL WHENEVER PIPING IS INVOLVED
Coast-to-Coast Network of Branch Warehouses and Distributors
pipe and tube finings · welding fittings · engineered pipe hangers qnd supports · Thermolier unit heaters · valves Grinnell-Saunders diaphragm valves • pipe · prefabricated piping · plumbing and heating specialties · water works supplies industrial supplies • Grinnell automatic sprinkler fire protection systems · Amco air conditioning systems For further information, circle number 125 A on Readers' Service Card, page 129 A
VOL. 49, NO. 4
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APRIL 1957
125 A
