| Function | Pilot-operated pressure reduction |
|---|---|
| Body | Nodular cast iron |
| Pressure class | PN25 |

Marine Pressure Reducing Valves
Find pressure-reducing valve references for the required medium and pressure-control duty.
Serial numbers require manual identification. Send the serial number and a nameplate photo to our team; this is not an online serial-number lookup.
Brands
Brand references relate to this product category, not confirmed supply agreements. Availability and compatibility require confirmation. Send the exact equipment, model and part details through the enquiry form.
Models
| Brand | Model / Reference | Equipment | Action |
|---|---|---|---|
| Spirax Sarco | Series | Marine Pressure Reducing Valves | |
| Spirax Sarco | Series | Marine Pressure Reducing Valves | |
| Cla-Val | Seawater pressure-reducing valve |
Technical Data
Product references Reference data for this product category. Confirm the exact model, configuration and availability when enquiring.
DP27S / DP27SY / DP27ES
Marine Pressure Reducing Valves| Brand | Spirax Sarco |
|---|---|
| Series | DP27 |
| Series / Range | DP27S / DP27SY / DP27ES |
| Equipment type | Marine Pressure Reducing Valves |
| Function | Pilot-operated pressure reduction |
| Body | Nodular cast iron |
| Pressure class | PN25 |
| Service | Steam; options vary by suffix |
| Reference document | TI-3.271 |
| Applications | Marine/Oil & Gas /Power Plant/Chemical Plant/Industrial Maintenance |
Use the suffix-specific technical sheet for downstream pressure range and capacity.
Configuration & Matching
| Equipment / product | Marine Pressure Reducing Valves |
|---|---|
| Applications | Marine/Oil & Gas /Power Plant/Chemical Plant/Industrial Maintenance |
| Matching basis | Model, serial number and installation drawing |
Spare Parts
Only DP27S and DP27SY in this source. DP27ES portion of the combined catalog record remains pending; do not apply these spares automatically to ES. Specify valve size/type.Provide the equipment model, a nameplate photo or an existing part number. We will help identify the required parts.
| Component | Enquiry |
|---|---|
| Main diaphragms (pair) | |
| Pilot diaphragms (pair) | |
| Pilot valve assembly | |
| Pilot filter element and gasket | |
| Main valve assembly | |
| Internal strainer screen | |
| Main valve return spring | |
| Control pipe assembly | |
| Internal downstream pressure-balance pipe | |
| Body gaskets (set of three) | |
| Pushrod and main diaphragm plate assembly |

