4" - 24" Butterfly Valves, Style 4500
Overview
The Clow Style 4500 butterfly valve is rugged and dependable. It will work easily any time you need it. Because if this ruggedness and reliability – plus positive 100% shut-off – you achieve a more efficient, trouble-free distribution system.
Sine the Clow Style 4500 butterfly valve does not “freeze” shut or stick, it is always readily operable. Should inexperienced workmen attempt to over tighten it, the tough 450 pounds torque rating of the operator at ends of travel protects stem and operating parts against damage. This torque rating is unparalleled in standard valves for this application. When it is considered that conventional water main valves have torque limitations as low as 150 foot pounds, the margin of safety provided by this exclusive Clow design is an important factor in long, trouble-free valve life.
With the Clow butterfly valve, you get a positive 100% shut-off. Rubber vane-seat and stainless steel valve-seat construction provides a permanent uninterrupted 360-degree bottle-tight closure. Underground operator and end cover are permanently sealed against ground water infiltration.
Clow butterfly valves are compact, lightweight, and easy to install. They have standardized components which offer you lowest initial cost and off-the-shelf availability. Expensive accessories are not required. No by-passes or special gearing.
Permanent lubrication provides a maintenance-free product. No packing adjustment, no periodic exercising, and no stem replacement is required. The closing action of the vane is self-cleaning and there are no pockets in which sediment or sludge formations can deposit, resulting in longer lifetime service. For Style 4500 butterfly valves, all component parts are 100% interchangeable between valves of the same size. If necessary, operators can be interchanged in the plant, shop, or warehouse.
Clow butterfly valves provide a highly effective method of throttling and control. The vane is held solidly, without chatter, in any desired control position.
The cylinder, crank, handwheel, square nut, electric motor and hand-lever operators are available on all pipe-end connections, in sizes 4” and larger. The hand-lever model has several latched vane position from full-open to full-closed.
Floor stands, extensions stems, chain wheels, solenoid valves, speed control valves, valve positioners, limit switches and electric motor operators are available.
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Class 250 available upon request