How to check fit and access
Verify that the drain can be operated and that the screen can be withdrawn along the actual service path.
See inspection and acceptance checks →Steam & hot water
Y-strainer insulation covers with blowdown access
Keep the drain and screen withdrawal path clear for maintenance.
Strainers upstream of control valves, steam traps and process heat exchangers.
Product views and construction details
Compare alternate views and see how the jacket opens, fits or fastens.
Design and specifications
A separate branch section can free the screen cap while keeping the main-body jacket in place where the design permits.
- Shape and construction
- Shaped body and branch jacket with removable branch section
- Facing, core and hot face
- Coated glass-fibre outer face and fibrous core; review splash or washdown separately.
- Nominal core thickness
- 25 / 40 mm nominal core options; confirm space at the cap and branch before adding build-up.
- Installation and closure
- Rated snaps or straps placed away from the drain and screen path.
- Dimensions to confirm
- Body OD and length, branch angle and OD, cap envelope, screen withdrawal length and blowdown direction.
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.
Compare the product views above ↑
Industry construction reference →
What to verify before approving a quote
Ask for a drawing showing access to the blowdown fitting and the full clearance needed to withdraw the screen.
Request the facing, core and liner data sheets, the proposed core thickness and the operating conditions used for any surface-temperature estimate. The Thermaxx hot-jacket data sheet is a third-party example of how these conditions are stated.
Operating temperature and expected result
Compare insulation coverage on the body and branch while retaining drain and strainer maintenance access.
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 branch angle, cap dimensions, full screen withdrawal length and blowdown orientation.
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.