What is NBR seat butterfly valve?

What is NBR seat butterfly valve?

Due to its rubber lined body materials, NBR Rubber seated butterfly valve is usually used in low pressure lines. NBR Rubber seated butterfly valve is installed between two flanges. The butterfly valve is kept in place by using bolts or studs and nuts from flange to flange.

What type of material is NBR?

synthetic rubber
NBR Rubber – Nitrile Gasket Material NBR is the abbreviation for nitrile butadiene rubber. This is a synthetic rubber that was developed during the 1930s. It is fabricated through the co-polymerization of acrylonitrile (ACN) (polar building block) and 1.3-butadine (nonpolar building block).

What is a Buna seat?

BUNA-N is the commonly used name for Nitrile synthetic rubber. Nitrile is a copolymer of acrylonitrile and butadiene. BUNA-N is sometimes referred to as NBR, Nitrile, or Hycar. BUNA-N is an excellent general purpose seat material which is particularly suitable for hydrocarbon service.

What is EPDM seat material?

EPDM is the abbreviated name for Ethylene Propylene Diene Monomer. In general industry, one may see other abbreviations or trade names used in lieu of EPDM such as EPT, Nordel, ECD, or EPR. All of these are the same materials as EPDM. EPDM is a standard seat material offered in Bray resilient-seated butterfly valves.

Is NBR UV resistant?

NBR and natural rubber even share the same resistant properties to UV rays, ozone and excessive heat. However, NBR rubber has one edge over natural rubber. The defining feature of NBR is its resistance to oils, grease and other fuels.

Is NBR a silicone?

Acrylonitrile-butadiene, commonly known as nitrile or NBR, has excellent chemical resistance, similar to silicone….Silicone vs Nitrile.

What is a Viton seat?

Viton™ is a fluoropolymer elastomer and synthetic rubber compound, trademarked by DuPont under this brand name. It’s a fluorinated hydrocarbon rubber product with amazing capabilities, designed to withstand even the most challenging of environments.

What is the difference between EPDM and Buna N?

EPDM (Ethylene Propylene Diene Terpolymer) stretches the upper and lower boundaries for temperature when compared to Buna. EPDM is excellent for hot water and steam service up to 275°F (135°C). EPDM also keeps its flexibility in freezing temperatures (down to -55°F).

What is the difference between NBR and EPDM?

NBR and EPDM are two types of rubber materials. NBR stands for Nitrile Butadiene Rubber while EPDM stands for Ethylene Propylene Diene Monomer Rubber. The key difference between NBR and EPDM is that NBR is a non-aromatic polymer compound, whereas EPDM is an aromatic polymer.