How to check fit and access
Move the lever through its full sweep and check whether the handle or stop contacts the jacket.
See inspection and acceptance checks →Steam & hot water
Removable ball valve insulation jackets
Leave room to operate the full lever sweep and read the valve position.
Quarter-turn isolation points in hot-water and process utility lines.
Product views and construction details
Compare alternate views and see how the jacket opens, fits or fastens.
Design and specifications
A low-profile opening keeps the valve position readable and avoids catching the lever on a raised seam.
- Shape and construction
- Low-profile split jacket with a quarter-turn lever cutout
- Facing, core and hot face
- Silicone-coated glass-fibre facing with enclosed flexible glass-fibre core for dry hot-water duty.
- Nominal core thickness
- 25 mm nominal baseline; compare 40 mm only where the lever and pipe clearance permit.
- Installation and closure
- Two short removable straps; position hardware outside the lever sweep.
- Dimensions to confirm
- Body length and OD, stem offset, lever sweep from fully open to closed, and nearby obstructions.
These are options for a custom quotation. Confirm the assembled materials, dimensions, service limits and finish in writing.
Review the construction detail
coated textile, enclosed core and detachable fastening.
Operating temperature and expected result
Compare the temperature at the covered body and around the stem opening; leave the lever uninsulated.
Agree the conditions, measurement points and target for the proposed cover before quoting. Record the complete assembly’s approved service limits separately from the target outside-face temperature.
Compare thickness, surface temperature and heat loss →Dry steam and hot-water reference
Calculated outside-face temperature for Shannon LT450SS at 21.1 °C ambient, flat-surface model. The manufacturer lists a maximum service temperature of 232 °C for this model. The columns show its nominal insulation thicknesses in millimeters and the manufacturer’s approximate inch equivalents.
| Operating temperature | 25 mm (1 in) | 40 mm (1½ in) | 50 mm (2 in) |
|---|---|---|---|
| 121 °C | 37.9 °C | 33.3 °C | 30.8 °C |
| 177 °C | 47.3 °C | 40.3 °C | 36.3 °C |
| 232 °C | 57.2 °C | 47.8 °C | 42.3 °C |
These figures describe the cited manufacturer’s model. Shape, airflow, compression, gaps and closures affect the installed result. A lower outside-face temperature still needs to be checked against your site’s contact and inspection requirements.
Read the manufacturer’s data →What to send us
Send open and closed lever positions, mounting clearances and connection dimensions.
Include a drawing or scaled photos, quantity and delivery location. Once the key measurements are available, we can review a CAD drawing or annotated design together.