Description
Spirax Sarco LCV1 bronze lift check valve is installed in horizontal pipelines to prevent reverse flow.
Standards
This product fully complies with the requirements of the European Union Pressure Equipment Directive / UK Pressure Equipment (Safety) Regulations.
Certification
Certification in accordance with EN 10204 2.2 is available for this product.
Note: All certification and inspection requirements must be specified when ordering.
Sizes and Pipe Connections
1/2”, 3/4”, 1”, 1 1/4”, 1 1/2” and 2”. Threaded connections are available in BSP or NPT.
Materials
| No. | Component | Material |
|---|---|---|
| 1 | Body | Bronze EN 1982 CC491K |
| 2 | Disc | Brass BS 2874 CZ 114 |
| 3 | Bonnet | Brass EN 12165 CW617N |
| 4 (not shown) | Spring | Stainless steel BS 2056 302 S26 |
Pressure/Temperature Limits
-
Maximum allowable pressure (PMA): 16 bar g (at 180°C); 232 psi g (at 356°F)
-
Maximum allowable temperature (TMA): 250°C (at 8 bar g); 482°F (at 116 psi g)
-
Minimum allowable temperature: -29°C (-20.2°F)
-
Maximum operating pressure for saturated steam service (PMO): 14 bar g (203 psi g)
-
Maximum operating temperature (TMO): 250°C (at 8 bar g); 482°F (at 116 psi g)
-
Minimum operating temperature: 0°C (32°F)
Note: For lower operating temperatures, consult Spirax Sarco.
The maximum cold hydraulic test pressure is 28 bar g (406 psi g).
Kv Values
| Size | 1/2” | 3/4” | 1” | 1 1/4” | 1 1/2” | 2” |
|---|---|---|---|---|---|---|
| Kv | 1.9 | 4.3 | 8.5 | 11.9 | 18.8 | 30.8 |
Conversion factors:
-
Cv (UK) = Kv × 0.963
-
Cv (US) = Kv × 1.156
Opening Pressure (mbar/psi g)
Without spring:
| Size | 1/2” | 3/4” | 1” | 1 1/4” | 1 1/2” | 2” |
|---|---|---|---|---|---|---|
| Pressure | 7.4 (0.103) | 6.5 (0.090) | 6.2 (0.107) | 7.1 (0.094) | 7.1 (0.103) | 6.9 (0.10) |
After the spring is installed, the opening pressure is equal to the spring strength.
Weight (Approximate)
| Size | Weight |
|---|---|
| 1/2” | (0.44) 0.2 kg |
| 3/4” | (1.1) 0.5 kg |
| 1” | 0.8 kg |
| 1 1/4” | (1.8) kg |
| 1 1/2” | (4.2) 1.9 kg |
| 2” | (6.0) 2.7 kg |
Safety Information, Installation and Maintenance
For complete details, refer to the Installation and Maintenance Instructions (IM-P029-06) supplied with the product.
Installation note: Always install LCV1 horizontally, with the flow direction matching the direction indicated on the valve body.
Disposal
This product is recyclable. When disposed of properly, this product is not expected to present an ecological hazard.
Spare Parts
No spare parts are available for this product.
How to Order
Example: 1 Spirax Sarco 1 1/4” LCV1 lift check valve with BSP threaded connections.