Spirax Sarco Spirax Sarco LCV1 Bronze Lift Check Valve

Spirax Sarco Spirax Sarco LCV1 bronze lift check valves are installed in horizontal piping to prevent backflow.

(an official) standard

This product fully complies with the requirements of the EU Pressurized Equipment Directive / UK Pressurized Equipment (Safety) Regulations.

accreditation

This product is available with certification to EN 10204 2.2.
Note: All certification/inspection requirements must be stated at the time of order.

Dimensions and pipe connections

1/2", 3/4", 1", 1 1/4", 1 1/2" and 2". Threaded connections are BSP or NPT.

makings

Item	Part	makings
1	valve body	Bronze EN 1982 CC491K
2	valve	Brass BS 2874 CZ 114
3	bonnets	Brass EN 12165 CW617N
4 (not shown)	sprung	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 working pressure (PMO) for saturated steam service: 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.
  Designed for a maximum cold hydraulic test pressure of 28 bar g (406 psi g).

Kv value

sizes	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 relationships:

• Cv (UK) = Kv × 0.963
• Cv (USA) = Kv × 1.156

Cracking pressure (mbar/psi g)

When there is no spring:

sizes	1/2"	3/4"	1"	1 1/4"	1 1/2"	2"
stresses	7.4 (0.103)	6.5 (0.090)	6.2 (0.107)	7.1 (0.094)	7.1 (0.103)	6.9 (0.10)

With the spring installed, the opening pressure is the same as the spring strength.

Weight (approx.)

sizes	weights
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

Security information, installation and maintenance

See the Installation and Maintenance Instructions (IM-P029-06) supplied with the product for complete details.
Installation Note: Always install the LCV1 horizontally, with the flow direction in the same direction as indicated on the valve body.

take care of

This product is recyclable. Disposal of this product is not expected to be ecologically hazardous as long as it is handled properly.

Spare Parts

There are no spare parts available for this product.

How to order

Example: 1 Spirax Sarco 1 1/4" LCV1 lift check valve with BSP threaded connection.