How to check fit and access
Verify gauge visibility, pilot tubing clearance and adjuster access against the approved layout.
See inspection and acceptance checks →Steam & hot water
Steam pressure reducing valve insulation jackets
Cover the hot body and keep pilot tubing, adjusters and gauges available to technicians.
Steam pressure reducing stations upstream of process users and HVAC loads.
Product views and construction details
Compare alternate views and see how the jacket opens, fits or fastens.
Design and specifications
Keeping the pilot and adjusters outside the cover supports servicing and avoids assuming that they share the body temperature limit.
- Shape and construction
- Split body jacket shaped around pilot connections
- Facing, core and hot face
- Coated glass-fibre facing with a fibrous core for dry service; select an alternate construction where the station is exposed to moisture.
- Nominal core thickness
- 25 / 40 / 50 mm nominal body options after pilot-clearance review.
- Installation and closure
- Removable straps located away from gauges and pilot tubing.
- Dimensions to confirm
- Exact valve model, body and flange envelope, pilot and impulse-line locations, vents and adjustment access.
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
Review the hot body separately from pilot and accessory heat exposure. Preserve required ventilation.
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 the exact valve model and marked-up photos showing all tubing, vents and adjusters.
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.