Click to Purchase and Download this Standard or Test Method
Updated On: October 22, 2013
This standard covers rubber-seated butterfly valves, 3 in. (75 mm) through 72 in. (1,800 mm) in diameter, with various body and end types, for fresh water having a pH range from 6 to 10 and a temperature range from 33 to 125F (0.6 to 52C). This standard covers rubber-seated butterfly valves suitable for a maximum steady-state fluid working pressure of 150 psig (1,034 kPa [gauge]), a maximum steady-state differential pressure of 150 psi (1,034 kPa), and a maximum velocity of 16 ft/s (4.9 m/s). 1.1.1 Body types, classes, and sizes. Valves covered by this standard are furnished in four body types and in classes as follows: 22.214.171.124 Wafer valves. Class 150B, in sizes 3-20 in. (75-500 mm); 126.96.36.199 Short-body flanged valves. All classes, in sizes 3-72 in. (75-1,800 mm). 188.8.131.52 Long-body flanged valves. Class 75A, class 75B, class 150A, and class 150B, in sizes 3-72 in. (75-1,800 mm); and 184.108.40.206 Mechanical-joint-end valves. Class 150B, in sizes 3-24 in. (75-600 mm), and all classes in sizes 30-48 in. (750-1,200 mm). 1.1.2 Definition of classification. In each case, the numeric designation represents the pressure rating (the maximum steady-state fluid working pressure, in pounds-per-square-inch gauge) and also the maximum steady-state differential pressure, in pounds per square inch, for which the valve is designed. The designations "A" and "B" define the flow-rate capabilities with the valve in the fully open position. "A" valves are rated for a maximum velocity of 8 ft/s (2.4 m/s), and "B" valves are rated for a maximum velocity of 16 ft/s (4.9 m/s) in the piping section upstream of the valve.
Schmidt Improves Portable Blasters
Schmidt's VBS System reduces blowdown intensity, prevents exhaust from damaging floor while using no screens or filters.
Reduces sound; Increasing safety. Call 1-800-231-2085
MiniARM automates surface prep
NLB’s Mini ARM lets an operator control high-pressure water jets remotely, with fast tool changes for different jobs. It maximizes protection and productivity.
Built for Tough Jobs
From Epoxies to Urethanes to other high solid coatings, the new Binks Airless 75 delivers a great finish using an ergonomic design. Visit binks.com for more information.
NO FLASH RUST - NO CONTAMINANTS
Our HoldTight®102 salt remover & flash rust preventer prevents flash rust by removing surface contaminants. It has no equal; only wannabees. Contact us for your
nearest distributor. (800) 319.8802 firstname.lastname@example.org