WHEATLEY Series 500 Check valve

Features​

• 316 stainless steel trim is compatible with a broad range​ of media and operating conditions​
• Full-open, through-conduit design for low pressure drop and less turbulence (allowing valves to easily pass pigs and spheres)​
• 90-durometer, peroxide-cured seals are compatible with a​ broad range of media and operating conditions​
• Seals provide a bubble-tight shutoff​
• Suitable for vertical flow up or horizontal installation​
• All materials conform to NACE MR0175/ISO 15156​
• Cast on flanges provide greater valve body integrity and​ fewer leak points​
• API 6D Monogram (510/511 only)​
• Designed in accordance with ASME B16.34 (510/511​ only)​
• Valve is fire-tested to API 6FD requirements, except for 1”​ (25 mm) valve​
• Flanges are back-faced, an extra manufacturing step that​ provides smoother bolting surfaces and even bolt loading​
• Bolted top entry, complete with 1/2” (12.7 mm) NPT​ cover tap for gauges and accessories, except for 1”​ (25 mm) size​
• In-line repairable​
• Through-pin clapper shaft makes clapper removal easier,​ and extends valve life by transferring wear and tear to an​ inexpensive replaceable part