Butterfly valve pdf

All sizes of butterfly valves (2˝ through 12˝) shall be pressure-rated for 1PSI at 70°F non-shock. All butterfly valves shall carry a two-year warranty, and shall be manufactured by Hayward Flow Control products in the USA. These valves satisfy a wide range of industrial applications and are available in carbon steel or stainless steel, as well as lug and wafer body styles.

DynaCentric high-performance butterfly valves offer the high performance of ball and gate valves with the low-cost, lightweight benefits of a butterfly valve design. Keystone Figure 9and 9resilient seated ButterFly ValVes METRIC DATA notes 1.

H” dimension refers to flat on stem. DN and DN valve assemblies with stainless steel body are furnished with integral 10-position throttling plate. KITZ DJ Series Butterfly Valves KITZ DJ Series Butterfly Valves Thorough pursuit of functions required for butterfly valves Variety of product ranges to comply with customers’ requirements Design Features Moulded-in (bonded) seat structure Replaceable seat structure Polyacetal stem bearing NBR (Buna-N) or EPDM O-ring NBR (Buna-N) or EPDM or. Butterfly valves have a greater potential for water hammer than globe valves.

The body of a butterfly valves (see Figure 1) consists of a circular casting with lugs (A) and a neck (B). However, instead of a ball mounted in the valve body a circular disc (called a butterfly because the two half circles around the vertical shaft appear like wings). Again the orientation of the butterfly determines the flowrate.

Butterfly Valves make an excellent choice by combining the balance of an economical valve with the performance you expect in a Commercial, HVAC and an industrial butterfly valve. Flowseal high performance butterfly valves are available in sizes from - in ASME pressure classes 15 30 and 6and are available with a diverse range of actuation options. Call Us Today For Ordering Info! This standard is a purchase specification for butterfly valves designed for installation between flanges specified in ASME B16. Between managing and reviewing projects, along with balancing and commissioning systems.

What you are looking for are devices that perform as specified and are easy to test, adjust, and balance. Versatility, Economy, Selection. To make your selection easier, NIBCO offers specification and submittal assistance. OPW, TO-DO, Dixon, and Arta are. This unique and improved design provides operating torques that are lower than the original design.

Butterfly Valve (TOSV) is the only design of its kind that has a field replaceable seal and seat ring. This allows the reuse of existing actuation when replacing legacy butterfly valves in most cases. Preface Control valves are an increasingly vital component of modern manufacturing around the world.

A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve , which allows for quick shut off.

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