Document nkLbZkpZOjXDjp1Mxo6EyBO0z

Jas. P. Marsh & Company Specialties, Heating MARSH SYSTEM UNIT- RADIATOR VALVES Description Patterns and Sizes The Marsh System Unit Radiator Valve combines beauty with mechanical per fection. Now, radiator fit tings as well as radiators themselves may be worked Marsh System Unit Radi ator Valves are made in three series: No. 100 series oval wheel packless; No. 101 Series oval wheel graduated and into interior design and be in No. 102 series lever handle keeping with the furnishings. This New Marsh Radi ator Valve is modern in de sign. The sim plicity of--its lines, the two- tone polished .. and satin * chrome or nickel body finish, crowned by a control finest of Ho. lOt Series (Lever Handle Graduated) graduated. All three series are made in sizes A in., % in 1 in._, IA in., \A in. and 2 in. in the fol lowing pat terns: angle, right hand corner, left hand corner, globe and back offset. Exten No. 100 Series (Oval Wheel Packless) No. 101 Strict (Owi Wheel Graduated) sions and other valve accessories On next wheel or lever of bakelite of distinctive proportions, page. places this heating necessity abreast of modern trend. Construction The Marsh System Unit Radi ator Valve is truly packless. Its packless feature "is not subject to deterioration, wear or cracking. We have confidence in the prin ciples upon which it has been designed. These principles have proven as sound as they are new. In the Marsh System Unit Graduated Type Packless Radi ator Valve a means is provided whereby the total capacity of the valve is adjusted in proportion to the size of the radiator, operating the valve so as to limit the flow through the valve in graded quanti ties. The flexcone valve disc, together with the valve seat, form an orifice arrangement which as the flexcone valve disc is raised and lowered modulate the area through which the steam or liquid can flow and in that way graduate the capacity of the valve. An indicator and dial act to guide the operator of the valve as to the proper setting for the desired flow. Laboratory tests of Marsh Sys tem Unit Valves calculated defi nitely to prove the efficiency and perfection of the unique construc tion, have subjected these units to service many times that of normal operation. The body of the valve (1) is a steam bronze casting accurately machined and tested to 125 pounds pressure.- The valve seat (2) is built integrally into the valve body and in combination with the Flexcone valve disc (5) permits a large, full capacity flow through the valve. The lift thread in which the thrust screw (7) operates is cut integrally into the main body casting, allowing a large deep thread and adding strength to the body casting. The patented Flexcone valve (5) is a drawn monel metal spring cup permanently riveted to the thrust screw. Integrally in corporated in the valve stem is a perfectly machined stem collar (4) which in conjunction with the Metalflex sealing discs (3) serve to make the valve perfectly packless. These sealing discs consist of two sets of thin metal diaphragms. The valve bonnet (9) is screwed onto the valve body around the valve stem (6), lining up the latter and at the same ..time compressing the upper set of Metalflex discs against the lower set, forming a perfect seal. The valve wheel (8) is made of bakelite.' 812 . P. Marsh & Company Specialties;\Heating MARSH TYPE G 150 STEAM RADIATOR VALVE Government Pattern The Marsh Type G 150 radiator valve is a heavy 150 lb. construction steam radi ator valve. As shown by the illustration this valve is of rugged construction.. The body and bonnet castings are of steam bronze and wall thicknesses throughout are much heavier than usually found in valves of this type. The stem is of large diameter and the operating thread is perfectly machined and is of design to give lasting, smooth operation. The pack ing gland, follower and nut are of ample proportion and make provision for a last ing joint for service on pressures or vacuu m. When the valve is screwed full open a tight joint is formed between the top of the disc holder and the inside surface of the valve bonnet, permitting repacking of the valve under pressure or vacuum without leakage. This also prevents any possibility of the valve jamming or sticking in the open position. The Marsh Type G 150 steam radiator valve is standard in angle pattern only, and in 1 in., 1)4 in., ^A in. and 2 in- sizes, but can be manufactured in other patterns. We also manufacture a complete line of standard low pressure steam and hot water radiator valves and union ells. RADIATOR VALVE ACCESSORIES No. tOS Chain Extension Type 813