The IMI Calypso 15mm TRV is a high-quality thermostatic radiator valve designed for precise temperature control in two-pipe central heating systems. Featuring bi-directional flow capability, it can be installed on either the flow or return, in both horizontal and vertical positions, offering maximum flexibility on site.
Stepless precision pre-setting allows accurate hydraulic balancing, improving system efficiency, reducing energy consumption and delivering consistent room comfort.
Manufactured from durable brass with a nickel-plated finish, the valve incorporates EPDM O-rings and a stainless steel return spring for long-term reliability. Suitable for operating temperatures from -10°C to 120°C and rated to PN 10, it is ideal for domestic and light commercial heating installation.
The internal flow-limiting device can be pre-set to 1-8, the correct setting can be found by using the Hytools App