(API 624 Additional High Temperature Version)
Key Specifications / Features
The China ASTM A352 LCB Gate Valve is a high-performance valve designed for reliable flow control in industrial applications. Manufactured to API 600 and ASME B16.34 standards, it features a 20-inch size (DN500), Class 300 LB pressure rating, and PN50. With a bolted bonnet, Outside Screw and Yoke (OS&Y) design, and low leakage performance, this valve ensures secure sealing and smooth operation. Ideal for systems requiring durable, leak-tight performance, it provides optimal reliability in demanding environments.
- Model no.: MV-20250409-CSGTV-01
- Hits: 1
- Categories: Cast Steel Gate Valve
- Tags: API 600 Gate Valve, ASTM A352 LCB Gate Valve, 20 Inch Gate Valve
Detail Information
Product Name: ASTM A352 LCB Gate Valve, Bolted Bonnet
Design Standard: API 600
Body Material: ASTM A352 LCB
Size: 20 Inch, DN500
Pressure: Class 300 LB, PN50
End: RF Flanged
Operation: Gearbox
Standard
Flange Standard: ASME B16.5
Face to Face Standard: ASME B16.10
Testing Standard: API 6D, API 598
Fire Safe Standard: API 6FA, API 607
Working Temperature: -20°C to 180°C
Product Range
Material: ASTM A216 WCB, A352 LCB/LCC, A351 CF8, CF8M
Size: 1/2-28 Inch, DN15–DN700
Working Pressure: Class 150-600 LB, PN20-PN100
End Connection: RF, FF, RTJ, BW
Industries: Water, Petroleum, Chemical, Natural Gas, ect
Features
Bolted Bonnet or Pressure Seal Bonnet
Flexible Wedge
Full Port
Outside Screw and Yoke (OS&Y), Rising Stem
Extended Bonnet for Cryogenic Services
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.
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