Ductile Iron Body
(Series 050/051)
![](https://www.deltatvalves.com/wp-content/uploads/2015/07/050-0511.png)
ABS, Coast Guard, NSF – Approvals
Description:
- Iron Body Butterfly Valve; sizes 1-1/2” – 48”
- Wafer and Lugged Body Styles Available
- Manual Valves with handle or gear operator available
- ISO 5211 mounting patterns for ease of actuation
-
ABS Type Approval, Certificate Pending
-
Coast Guard, NSF – Approvals
Literature:
Data Sheets:
Engineering Drawings:
Exploded View
(1-1/2” – 12” Sizes)
![](https://www.deltatvalves.com/wp-content/uploads/2016/08/050-4IN-EXPLODED-VIEW-e1472590256696.png)
(14-48” Sizes)
![](https://www.deltatvalves.com/wp-content/uploads/2016/08/051-14in-exploded-view-e1472590520864.png)
Disc Materials
(Details, Recommend Applications, Not Recommended For)
![](https://www.deltatvalves.com/wp-content/uploads/2013/06/DI-NP-3.png)
DI-NP
Nickel Plated Ductile Iron Ductile iron disc for strength, coated with Nickel Plating for corrosion resistance and increased abrasion resistance.
Recommend Applications: Air, Kerosene, Oils, Ketones, Hydrocarbons, Solvents, Detergents, Salts, Concentrated Organic Acids
Not Recommended For: Inorganic Acids, Diluted Organic Acids
![](https://www.deltatvalves.com/wp-content/uploads/2013/06/SS-Seat-1.png)
CF8M
316 Stainless Steel Stainless steel disc is inherently strong for industrial use and corrosion resistant for a wide range of chemical and environmental applications.
Recommended Applications: Acetic Acids, Air, Automotive Oils & Fuels, Beer, Freon, Gasoline, Ketones, Oils, Oxygen, Steam, Sea Water, Potable Water
Not Recommended For: Acids
![](https://www.deltatvalves.com/wp-content/uploads/2013/06/AL-AB.png)
AL-BZ
Aluminum Bronze Strength similar to carbon steel, but with an aluminum oxide layer on the surface for excellent corrosion resistance.
Recommended Applications: Sea water, brine, detergents, gasoline, alcohols, esters, ketones, potable water
Not Recommended For: Acids
![](https://www.deltatvalves.com/wp-content/uploads/2013/06/SS-polished-Seat.png)
Polished
Polished 316 Stainless Steel All the benefits of stainless steel strength and corrosion resistance, plus a highly polished surface for sanitary applications.
Recommended Applications: Sanitary Applications, Potable Water
Not Recommended For: Acids
![](https://www.deltatvalves.com/wp-content/uploads/2013/06/NY11.png)
NY11
Nylon 11 Coated Ductile Iron Ductile iron disc for strength, coated with Nylon 11 for corrosion resistance and excellent abrasion resistance.
Recommended Applications: Inorganic salts, alkalis, most solvents, most organic acids, hydrocarbons, oils, kerosene, ketones, esters, detergents, sea water, abrasives
Not Recommended For: Inorganic acids, phenols, chlorinated solvents
![](https://www.deltatvalves.com/wp-content/uploads/2013/06/PTFE-2.png)
PTFE
PTFE Coated 316 Stainless Steel
Recommended Applications: Acids, Alcohols, Solvents, Oils, Potable Water
Not Recommended For: Fluorine
Seat Material Guide
(General Applications, Temperature Range at Full Rated Pressure, Not Recommended For)