Our ASTM A351 CF8M Check Valve Factory produces high-performance check valves with cast stainless steel bodies, ensuring durability and corrosion resistance. These valves feature a swing disc design and have a size of 1 inch (DN25) with a pressure rating of 200 WOG (PN16). Equipped with threaded ends for easy installation, they are designed to minimize leakage and provide reliable operation.
Product Name: ASTM A351 CF8M Swing Check Valve
Body Material: ASTM A351 CF8M
Size: 1 Inch, DN25
Pressure: 200 WOG, PN16
End: Threaded
Features: Investment Casting, Swing Type Disc, Precision Grinding
Product Range
Size: DN8-DN80
Working Pressure: 200 WOG (PN16)
Working Temperature: -20°C to 180°C
Body Material: ASTM A216 WCB, A351 CF8, CF8M
Thread End: ASME B1.20.1 (NPT), DIN 259/DIN 2999, BS21, ISO 288-1, ISO 7-1
Socket Weld End: ASME B16.11
Applications: The product is suitable for industries such as petroleum, chemical, natural gas, biochemical, pharmaceutical, environmental protection, and new energy.
The packing used in cast steel valves is the M800 series graphite packing,
with a graphite carbon content exceeding 99% and a sulfur content below 50 PPM.
The dynamic leakage rate, as tested according to API 622, is less than 12 PPM.
The static leakage rate is below 6 PPM.
All the gaskets used are low-emission gaskets certified by TÜV Rheinland TA-LUFT
ISO 15848-1 Valve Tested Case Example: NPS4 Class 300 Valve
4-inch 300 LB Globe Valve: ISO 15848-1 Test at Ambient Temperature for 205 Cycles, High Leakage Rate of 1.8×10−7, Maximum Body Leakage at 11.6 PPMV
API 624 Valve Test Case 1: 12-inch 150 LB Gate Valve
12-inch 150 LB Gate Valve
API 624 Test
Maximum Packing Leakage: 46.7 PPMv
API 624 Valve Test Case 2: 12-inch 600 LB Gate Valve
12-inch 600 LB Gate Valve
API 624 Testing
Maximum packing leakage: 32 ppmv
Fire Test Certification of Valve Packing
Fire Test Report and Certification for 4-inch Gate Valve with M800 Packing
ISO 15848-1 Valve Tested Case Example: NPS12 Class 300 Valve
12-inch 300 LB Gate Valve
ISO 15848-1 Test at Ambient Temperature for 205 Cycles
High Leakage Rate: 1.6×10−6
Maximum Body Leakage: 7.7 PPMV
The API 624 test for the API 600 WCB 12-inch 150 LB gate valve utilized an M600 low-emission graphite packing set.
The ISO 15848-2 Type A test for the API 600 WCB 2-inch 150 LB gate valve, which requires emissions below 50 PPMV, was conducted using an M600 low-emission graphite packing set.