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Products – American Valve

Flanged Ball Valves
PFA Fused Ball

The 4000 and 3700 Series feature a PFA fused ball that is more durable, less susceptible to accumulating buildup and longer lasting than an ordinary unprotected ball. This adds to a long list of advantages over other types of valves.
With the help of Dupont, we developed a process to impregnate PFA .008″ into a solid metal ball. An additional .004″ is added electrostatically for smoothness. Since the PFA becomes part of the metal, it can’t flake, chip, or peel off.

The corrosion and chemical resistance of PFA has been recognized around the world. With the introduction of this valve we present an affordable (same price as most gate valves) ball valve that will outlast any unprotected metal valve in any application.

The lubricity of our PFA ball allows for lower torque ratings in any application, making it easier to turn and require a smaller, less expensive actuator.

We offer a complete line of actuators, gear operators and operating nuts for the 4000 series. Our unique PFA fused ball and lower operating torques make the 4000 series an effective alternative to cast iron gates, carbon steel ball valves and plug valves. The four-bolt actuator mounting pad is ideal for applications requiring automation.

*PFA is an ingredient commonly branded as Teflon

3700 Flanged Ball Valve & 3700V Grooved End Ball Valve
Cast iron ball valves with PFA fused ball

Model 3700 features an epoxy-coated cast iron body and the same PFA fused ball as the 4000 series. It inhibits buildup that accumulates on unprotected ball surfaces and prevents premature valve failure. The same ANSI B16.10 end-to-end dimensions as flanged gate and plug valves makes this one an easy decision.

Model 3700 is ideally suited for backflow prevention devices and potable water applications. All model 3700 valves are rated 200W at 200°F, and are available in full port from sizes 2″ through 8″. With no disc or obstruction in the line, model 3700 easily out-performs any butterfly valve.

Zero lead
Zero flow obstruction in the open position
Zero leak rate in the closed position
Easy to operate

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4000 Flanged Ball Valves
Cast iron flanged ball valve with PFA fused ball

The original.

Replaces any gate valve or eccentric plug valve. Same end-to-end dimensions, but with the convenience of quarter-turn, dramatically lower torque, and the corrosion-resistance of PFA fused .008″ into the solid iron ball. A revolution in ball valve technology

Rating:

125 psi WSP
200 psi WOG
353º F
Specifications:

MSS SP-72
ANSI B16.10
FED. SPEC. WW-V-35AWWA C507-99 Proof of Design Test
100% Lead Free

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4000D Flanged Ball Valves
Ductile Iron flanged ball valve with PFA fused ball

It’s what you’ve been waiting for.

Replaces Carbon Steel Ball Valves, Gate Valves, and Eccentric Plug Valves. With 80,000 psi tensile strength, it’s stronger than steel. Ductile Iron easily out-performs Carbon Steel in water applications. With dramatically lower torque, and the corrosion-resistance of PFA, fused .008″ into the solid stainless steel ball, you’ll understand why thousands of valve buyers have switched to the 4000D

Rating:

150 psi WSP
300 psi WOG
366º F
Specifications:

MSS SP-72
ANSI B16.5 Raised Face
FED. SPEC. WW-V-35
AWWA C507-99 Proof of Design Test
100% Lead Free

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4001 Flanged Ball Valves
316 Stainless Steel flanged ball valve with PFA fused ball

The ultimate in corrosion resistance.

Investment cast 316 Stainless Steel with all Stainless Steel top works–Even the handle. Other 4001 features such as full port, low torque, and the corrosion-resistance of our PFA fused stainless steel ball make this valve a winner

Rating:

150 psi WSP
300 psi WOG
366º F
Specifications:

MSS SP-72
ANSI B16.5 Raised Face
FED. SPEC. WW-V-35
ANSI B16.5 RaisedFace
AWWA C507-99 Proof of Design Test
100% Lead Free

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Automation

American Valve offers a complete package of pneumatic, hydraulic and electric actuators, gear operators and operating nuts for the 4000 series.

Our unique, PFA fused ball and lower operating torques make the 4000 series an effective alternative to cast iron gates, carbon steel ball valves and plug valves. Because lower operating torque allows the use of smaller actuators, it is often possible to purchase an American Valve with an actuator for the same price as a competing brand’s hand-operated valve.
Pneumatic, hydraulic and electric actuators designed specifically for the 4000 series have an unmatched cycle life and are the industry-wide preference for even the most severe applications. These actuators offer adaptability to a variety of process conditions to accommodate your application needs. American Valve provides turn-key automation packages that offer unparalleled reliability with components that are tracable back to one single manufacturer.

The flexible, modular design of the 4000 series can be used to combine actuators, solenoid valves, limit switches and other accessories in a variety of applications. American Valve can deliver the 4000 series fully automated and factory tested.
Standard 2″ square operating nuts are available to effectively satisfy underground requirements.

Basic Metallurgy and Technical Information

100% pure iron is never used as a cast metal because it is too soft and weak. When carbon is added, hardness and strength appear. When approximately 0.3% carbon is added, the resulting alloy is steel. Steel is a strong but difficult ferrous metal to manufacture from a production standpoint. Adding more carbon (up to about 2%) creates even more production problems. These “semi-steels” are seldom used.

When more carbon is added (between 2% and 3%), white iron is formed. White iron is true cast iron and is easy to produce. The problem with white iron is that it is very brittle because the carbon exists as iron carbide instead of pure carbon. Iron carbide (Fe3C) is a hard and brittle compound sometimes referred to as cementite. If white iron is subjected to a lengthy heat treatment, the Fe3C decomposes into iron and nodules of graphite. The end product is malleable iron.

When approximately 3.5% carbon is added, Fe3C exceeds its solubility in solid iron (the Fe3C is fully absorbed in the iron until there is no room left. The excess Fe3C is dispersed as graphite flakes). The result is grey iron. Grey iron (standard cast iron) delivers only moderate strength with almost no elongation because the excess Fe3C flakes act as stress raisers (they make cast iron easy to crack). Since grey iron is so economical to produce, its use has been widespread for centuries.

Cast Iron with spheroidal graphite (ductile iron) was first produced in 1948. Its chemical composition and percent of carbon is about the same as grey iron. The transformation to ductile iron occurs when molten grey iron is treated with magnesium. The insertion of magnesium into the pouring ladle (the process is called inoculation) transforms the Fe3C flakes into spheroids. These spheroids strengthen the metal by acting as crack arresters instead of crack assistors. Ductile iron is sometimes referred to as spheroidal or nodular iron.

65-45-12 ductile iron is named for its physical properties (65,000 psi tensile strength, 45,000 psi yield, 12% elongation). Ductile iron chemically can be manufactured as Ferritic or Pearlitic. In Ferritic mixes, the graphite spheroids are in a matrix of pure iron. In Pearlitic mixes, the graphite spheroids are in a matrix of pure iron and cementite (Fe3C). The most common grade of ductile is Pearlitic-Ferritic, a combination of the two. American Valve’s 4000D uses a predominately ferritic mix (9:1) to take advantage of its high impact resistance and added tensile strength (80,000 psi).

Except where API 800-degree F fire safe standards are required for petrochemical refineries, ductile iron is generally preferable to a carbon steel because WCB has a tendency to flake, whereas ductile iron powders when subjected to liquid erosion. Ductile iron also possesses 50% higher yield strength properties and is more cost effective. Ductile iron castings have a maximum temperature rating of 650 degrees F. Traditional glass reinforced PFA seats begin to deform at 360 degrees F.

ASTM A536-70 (MIL SPEC D-4512) requires each casting to be marked by its foundry heat number. Each heat is chemically tested prior to magnesium inoculation and also afterwards. Chemical certification by heat number is available upon request.

Standard cast steel (carbon steel) uses the symbol WCB and is defined under ASTM A-216. It contains a maximum of 0.3% carbon.

Stainless steel (ASTM A-351) has carbon levels even lower than WCB (0.08% maximum) making its production more costly. 304 Stainless Steel (CF8) adds 8% nickel, about 20% chromium, and a little more silicon. 316 stainless steel (CF8M) adds 2-3% molybdenum to the above. The addition of chromium, nickel, and molybdenum enhances corrosion resistance, allowing CF8M to be utilized in a wide variety of chemical, petrochemical, and corrosive environments.

Operating Torque

The actual amount of torque required to operate a valve is dependent upon many variables, such as line pressure, temperature, type of fluid, frequency of operation.

The following table is based on average breakaway torque requirements for a valve handling a clean, particle-free liquid such as water. The following charts include a safety allowance for service conditions. The torque figures listed should be further adjusted for special service conditions. For fluids with high solids or abrasive content, consult factory for recommendations.

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American Valve Catalogue in PDF – File Size: 1.2 MB
American Valve Catalogue in PDF – File Size: 1.7 MB

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