The ASTM A351 CF8 Swing Check Valve Factory produces high-performance valves tailored for industrial applications. These valves are manufactured in accordance with the API 6D standard, ensuring they meet rigorous quality and safety requirements. Constructed from cast stainless steel, they offer excellent corrosion resistance and durability. With an 8-inch size and a DN200 diameter, these valves are rated at Class 600 LB and PN100, making them suitable for high-pressure environments. They feature raised face (RF) flanged ends for secure and leak-free connections, and a bolted bonnet design for easy maintenance and inspection.
Product Name: ASTM A351 CF8 Swing Check Valve
Type: Swing Check Valve
Design Standard: API 6D
Body Material: ASTM A351 CF8
Size: 8 Inch, DN200
Pressure: Class 600 LB, PN100
End Connection: RF Flanged to ASME B16.5
Face to Face Standard: ASME B16.10
Test & Inspection Standard: API 598
Certificates: TA-Luft, ISO 15848-1, API 622, ect
Product Range
Body Materials: ASTM A216 WCB, A351 CF3, A351 CF8
Gasket & Packing Material: Graphite/PTFE
Size Range: 2-24 Inch, DN50-DN600
Pressure Range: Class 150-2500 LB, PN16-PN420
End Connection: Flanged, Welded
Temperature Range: -20°C to 425°C
Medium: Water, Steam, Oil & Gas, etc.
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.