• Glass-filled nylon baffle plug
• High strength 7/16" socket head bolts
• Body and cover constructed of ductile iron for extra strength. Epoxy coated inside and out for corrosion protection
• Brass check valve body has a special high pressure valve core and is threaded to fit standard dry nitrogen filling equipment
• Heavy duty Buna-N diaphragm is suitable for us with detergents and water to 140 degrees F (60 degrees C)