Wafer Type
Description
The LCV1 is a bronze lift check valve which is installed in horizontal lines to prevent reverse flow.
Standards and Certification
- Standards: This product fully complies with the requirements of the EU Pressure Equipment Directive/UK Pressure Equipment (Safety) Regulations
- Certification: This product is available with certification to EN 10204 2.2
- Note: All certification/inspection requirements must be stated at the time of order placement.
Sizes and Pipe Connections
- Screwed BSP or NPT:
- ½", ¾", 1", 1¼", 1½" and 2"
Pressure/Temperature Limits
| Parameter | Value |
|---|---|
| Body design conditions | PN16 |
| PMA - Maximum allowable pressure | 16 bar g @ 180°C |
| TMA - Maximum allowable temperature | 250°C @ 8 bar g |
| Minimum allowable temperature | -29°C |
| PMO - Maximum operating pressure for saturated steam service | 14 bar g |
| TMO - Maximum operating temperature | 250°C @ 8 bar g |
| Minimum operating temperature | 0°C |
Note: For lower operating temperatures consult Spirax Sarco.
Designed for a maximum cold hydraulic test pressure of: 28 bar g
Important
The product must not be used in the shaded region of the chart.
Kv Values
| Size | ½" | ¾" | 1" | 1¼" | 1½" | 2" |
|---|---|---|---|---|---|---|
| Kv | 1.9 | 4.3 | 8.5 | 11.9 | 18.8 | 30.8 |
For conversion: Cv (UK) = Kv × 0.963 | Cv (US) = Kv × 1.156
Opening Pressures (Without Springs)
| Size | ½" | ¾" | 1" | 1¼" | 1½" | 2" |
|---|---|---|---|---|---|---|
| mbar | 6.2 | 7.4 | 6.5 | 7.1 | 7.1 | 6.9 |
With springs fitted the opening pressure is the same as the spring strength.
Materials
| No. | Part | Material |
|---|---|---|
| 1 | Body | Bronze EN 1982 CC491K |
| 2 | Cone | Brass BS 2874 CZ 114 |
| 3 | Cap | Brass EN 12165 CW617N |
| 4 (Not illustrated) | Spring | Stainless steel BS 2056 302 S26 |
Dimensions and Weights (Approximate) in mm and kg
| Size | A | B | D | Weight |
|---|---|---|---|---|
| ½" | 52 | 46 | 36 | 0.2 |
| ¾" | 71 | 58 | 41 | 0.5 |
| 1" | 86 | 71 | 56 | 0.8 |
| 1¼" | 108 | 71 | 56 | 0.8 |
| 1½" | 106 | 91 | 71 | 1.9 |
| 2" | 131 | 104 | 86 | 2.7 |
Safety Information, Installation and Maintenance
For full details see the Installation and Maintenance Instructions (IM-P029-06) supplied with the product.
Installation note: Always install the LCV1 horizontally with the flow in the direction indicated on the body.
Disposal
This product is recyclable. No ecological hazard is anticipated with the disposal of this product, providing due care is taken.
Spare Parts
There are no spare parts available for this product.
How to Order
Example: 1 off Spirax Sarco 1¼" LCV1 lift check valve having screwed BSP connections.
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