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LFBV is a manually operated shut-off valve, suitable for liquid, suction and hot gas pipelines of commercial air-conditioning, refrigeration and other equipment. By operating the valve stem, it can open and cut off the internal circulation path. It can be used as a maintenance valve for vacuuming and adding refrigerant during maintenance.
Straight through type, full bore design for minimum pressure drop and low pressure loss.
From fully open to fully closed, only 1/4 turn is needed, easy operation.
The valve body and valve seat adopt a welded structure, no external leakage, high reliability.
Chromium plated ball and high-performance sealing ring can minimize internal leakage rate, 100% leakage testing.
Bi-directional flow, explosion-proof valve stem design, charging valve is available.
The valve body is equipped with bracket mounting holes for easy installation.
General | Value |
Applicable refrigerant | Commonly used HCFC, HFC refrigerants and related oils |
Maxworking pressure | 4.5MPa |
Maxproof pressure | 6.5MPa |
Working temperature range | -40℃+120℃ |
Installation position | Liquid pipe, suction and exhaust ports, hot gas pipeline |

Model | Welding ODF(in) | Dimensions(mm) | Kv value m³/h | ||||||
With charge valve | Without charge valve | L | H | C | h | M thread | OD | ||
LFBV-6-1 | LFBV-6-2 | 1/4 | 134 | 51 | 8 | 22 | M4 | 13 | 0.8 |
LFBV-10-1 | LFBV-10-2 | 3/8 | 134 | 51 | 8 | 22 | M4 | 13 | 3.8 |
LFBV-12-1 | LFBV-12-2 | 1/2 | 156 | 51 | 11.5 | 22 | M4 | 13 | 5.6 |
LFBV-16-1 | LFBV-16-2 | 5/8 | 156 | 51 | 13 | 22 | M4 | 13 | 10.1 |
LFBV-19-1 | LFBV-19-2 | 3/4 | 166 | 60 | 16 | 29.7 | M4 | 19 | 20.4 |
LFBV-22-1 | LFBV-22-2 | 7/8 | 184 | 60 | 20 | 29.7 | M4 | 19 | 28.2 |
LFBV-28-1 | LFBV-28-2 | 1-1/8 | 204 | 79 | 23 | 38 | M4 | 24.5 | 52 |
LFBV-35-1 | LFBV-35-2 | 1-3/8 | 244 | 89 | 25.5 | 48 | M6 | 30 | 80.9 |
LFBV-42-1 | LFBV-42-2 | 1-5/8 | 256 | 110 | 28 | 55 | M6 | 36.5 | 196 |
LFBV-54-1 | LFBV-54-2 | 2-1/8 | 303 | 128 | 35 | 60 | M6 | 50 | 248 |
LFBV-67-1 | LFBV-67-2 | 2-5/8 | 324 | 147 | 36 | 92 | M6 | 60.5 | 252 |
LFBV-79-1 | LFBV-79-2 | 3-1/8 | 371 | 179 | 42 | 112 | M6 | 73 | 279 |