Document ppoEw0Vqn1xkD9xwpB7mLV0Lj

Valves The Dole Valve Company 1923-1933 Carroll Avenue Chicago, 111. Manufacturers of a Complete Line of High Grade Packless Radiator Valves and Automatic Air Valves Packless Radiator Valves Dole Packless Radiator Valves are made in a large variety of suitable pat terns to meet all requirements of any kind of Steam or Hot Water Heating System. All patterns embody same con struction, the design only being changed to conform to the required pattern. Wood knob handle, finely finished; no metal to come into contact with hand. Stem in one piece; shoulder under packless disc is part of stem, and shoul der above disc is part of bonnet. Stem does not rise or lower; seat disc holder only rising and lowering on double spiral thread when stem rotates, its free work ing permitting coming to a positive seat when closed. This feature also prevents grease and dirt being carried through. Spring is case tempered and carries tension of 75 to 100 pounds when com pressed in valve. Spring rests on top of bonnet shoulder, held in place by lock nut on top of ball bearing feature. This continually pulls seat on stem against packless disc, which, together with small seating lip on upper and lower shoulders that imbeds itself in packless disc, in sures tightness, preventing leakage of air, steam or water. Spring casing of high grade brass finely machined. Ball bearing feature, consisting of iron steel balls set between specially hardened bronze, allows high ten sion in spring while per mitting valve to operate freely--an exclusive Dole feature. Packless disc is. of special composition; made expressly for this valve. Owing to valve construc tion there is practically no wear on disc, as is proved by discs which have been in operation for 16 years with no apparent wear or de terioration. Dole Angle Valve With Union All Patterns of Dole. Packless Valves Are Constructed on this Basic Principle. Discs are specially made according to different formulas for steam or hot water so that it is necessary to specify type of system when ordering. Bonnet is extra heavy metal with very strong hexagon, allowing plenty of metal where wrench is used. General construction comprises high est grade brass and bronze metals. Every valve seated and tested on 80 to 90 pounds steam pressure. Roughing-in dimensions as nearly standard as com patible with present variations of dif ferent manufacturers. Packless disc, spring and ball bearing features are standard on all patterns and inter changeable. Right and Left Hand Corner Valve With Union Vs".... ........... $3.45 154"................$6,95 H"............... 4 25 154"................ 8.95 1"...... ........... 5.15 2"............... ....14.25 Graduated or Modulating Valve With Union Vs".... ..... ..... $4.15 V4".... ........... 4.80 1"...... .......... 5.75 154"............ ....$7.40 154"........... .... 9.10 2"............... ...14.10 Wood Wheel Straight-Way Gate Valve With Union Vs".... ...........$3.40 D4".... ....$6.75 .......... 4.05 154"..:........ ... 8.25 i"....... ........... 5.30 2"................ ,...11.90 Angle Valve With Union Vs".............. $3.15 154"............ ...$6.25 ........... 3.90 154"............ ... 8.15 l"....... ........... 4.70 2"................ ...13.00 Globe Valve With Union Vs"... ........... $3.15 154"............ ...$6.25 44"-. ........... 3.90 154"............ ... 8.15 1".... :.. ........... 4.70 2"................ ...13.00 Wood Wheel Gate Valve With Union 44"- ........... $4.45 154"............ ...$7.40 r....... ........... 5.80 154"............ ... 9.00 2"............ ....$13.00 Lock Shield Valve With Union Same list as Wood Wheel Valves, but add 5% to net prices. Keys, 30 cents each, net. Graduated Lock Shield Valve With Union 54"............... $4.15 y4"...:......... 4.80 1"................. 5.75 l'A"................$7.40 154"................ 9.10 2"....................14.10 Keys, 30c each, net. 332 The Dole Valve Company Valves Shure-Vent Air Valves List Price, Each $2.00 2--Seating Screw projects down into the chamber of valve far enough to form a guard which prevents dirt and flake working into the valve seat. 3--Seating Pin extends well up in the The Dole ShureVent Air Valve is an efficient automatic air valve in which has been overcome screw which forms a guide that insures a positive closing seat. 4--The Float made of light but strong annealed brass--rising when water en ters the valve and positively prevents the possibility of in terrupted action through accumula tion of dirt, rust and corrosion, or the oc casional annoying flood. 5--Inner Chamber of float contains exactly the proper amount of expansion liquid which expands and forms a gas the instant steam comes in contact with it--float rises and valve is closed tightly. stoppage known as 6--Finely Drawn Brass Shell, closely water-logging. corrugated to form free passage of air and give natural drain for water. Float contains a specified amount of 7--Expansion Diaphragm is made of what is commonly known as expansion special spring bronze. Its convex shape liquid. When air is expelled and steam permits the float to drop the exact dis approaches the heat vaporizes liquid. tance necessary for free expulsion of air This expansion presses down diaphragm from the system while cold. The instant in bottom of float and closes valve. the air is expelled steam strikes the float. Water flooding into valve raises the The heat then converts the liquid into a float and also closes valve. The cooling gas that expands this diaphragm forcing of liquid reduces pressure on diaphragm the pin at the top against the seat thus and opens valve. Similiarly, the drain positively sealing the outlet against the ing of water also opens valve. This escape of steapi- thermostatic and mechanical action is 8--Float Rest of drawn brass, shaped simple, positive and thoroughly auto and soldered into the base to form a matic. perfect rest for the float yet giving free passage for draining water back into Water-logging, caused by a vacuum radiator--the bottom being aligned with _^at top of valve holding water in valve, inlet to the valve insuring complete is overcome by the Dole emergency push drainage of the valve. button. Pressing down this button, and 9--Heavy Drawn Brass Base threaded releasing immediately, will break the on the inside to which the outer shell vacuum and drain the water. No re is screwed and soldered. This arrange moval or adjustment of valve or parts ment makes a positive non-leakable con necessary. nection of the utmost durability. 10--Push Button threaded and brazed Every valve properly sealed, adjusted to seat stem of the hand vent--impos and tested before leaving factory and sible to remove or get out of adjustment. each valve is guaranteed for the life of 11--The Hand Vent. Should water the healing system. logging ever occur with a Dole Valve the owner or tenant merely pushes the The Twelve Super button--and adjusts his own complaint, ior Features of has abundant heat and is always satis Shure-Vent .Air fied. The vent seat is held firmly in Valves place by a bronze spring of permanent tension precluding all possibility of leak 1--Double Cap ar age. This hand vent feature- alone is rangement which sufficient reason for using the Dole forces downward all Shure-Vent Valve. air escaping from 12---Heavy Brass Nipple of Inlet se inner cap. This ar curely brazed to the base and threaded rangement overcomes with true cut standard one-eighth inch, the reasons for the iron pipe thread which conforms to the usual dust streak on established standard tap on all makes Sectional View wall above. of radiators. 333