The Bolted Bonnet Lift Check Valve Factory produces high-quality API 602 forged check valves designed for reliability and low emissions. These valves feature a robust ASTM A105N carbon steel body, ensuring durability and strength in demanding industrial applications. The 1-1/2 inch size and Class 300 LB rating make them suitable for handling higher pressures. Equipped with RF flanged ends, these valves provide secure and leak-free connections. The bolted bonnet design facilitates easy maintenance and inspection.
Product Name: Bolted Bonnet Lift Check Valve
Type: Lift Check Valve
Design Standard: API 602
Body Material: ASTM A105N
Size: 1-1/2 Inch, DN40
Pressure: Class 300 LB, PN50
End Connection: RF Flanged
Face to Face Standard: ASME B16.10, MFG
Test & Inspection Standard: API 598
Certificates: TA-Luft, ISO 15848-1, API 622, ect
Product Range
Body Materials: ASTM A105, A105N, A182 F304, F316, F11, etc.
Gasket & Packing Material: Graphite/PTFE
Size Range: 1/2-2 Inch, DN15-DN50
Pressure Range: Class 150-2500 LB, PN16-PN420
End Connection: BW, Flanged (RF, RTJ)
Temperature Range: -29°C to 429°C
Medium: Water, Oil & Gas
The packing used in forged 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.



Type Test Report for 2-Inch Gate Valve
According to ISO 15848-1 at 400°C

Type Test Report for 1-Inch Globe Valve
According to ISO 15848-1 at 400°C


Type Test Report for 3/4-Inch Gate Valve
According to ISO 15848-1 at 400°C

The 0.5-inch forged steel gate valve in accordance with API 602 is tested for an ISO 15848-2 Class A leakage rate below 50 PPMV, using the M600 model low emission packing.
The 1-inch forged steel gate valve, in accordance with API 602, is tested for an ISO 15848-2 Class A leakage rate of less than 50 PPMV, using the M600 model low-emission packing.
The 1.5-inch forged steel globe valve, in accordance with API 602, is tested for an ISO 15848-2 Class A leakage rate of less than 50 PPMV, using the M800 model low-emission packing.
The API 624 test for a 2-inch forged steel gate valve in accordance with API 602 uses the M600 model low-emission packing.