Why use Spirax Sarco Pressure Reducing Valve?
Spirax Sarco Pressure Reducing Valve is a self-acting pressure control valve designed to reduce and maintain downstream pressure in steam, air, and compatible industrial gas systems. It can control downstream pressure despite variations in upstream pressure or system load, subject to proper sizing and operating conditions.
The valve operates without electrical power, making it a practical solution for industrial pressure reduction applications. Its compact design, serviceable components, fatigue-tested diaphragm, and replaceable pilot filter help support reliable operation and maintenance.
- Brand: Spirax Sarco
- Model: DP27
- Application: Steam Line
- Maximum Outlet Pressure: 17.2 bar
- Country/Origin Reference: UK
- User-Provided Size: 40mm
Note: The detailed 1/2-inch threaded specifications provided below may refer to a specific DP27 configuration. Size, connection, pressure range, and material should be confirmed against the exact model supplied.
Product Key Features
- Brand: Spirax Sarco
- Product Type: Pressure Reducing Valve
- Model: DP27 Series
- Self-Acting Operation
- No Electrical Power Required
- Suitable for Steam, Air & Industrial Gases
- Helps Maintain Stable Downstream Pressure
- Compact & Versatile Design
- Suitable for Process Applications
- Fatigue-Tested Diaphragm
- Easily Replaceable Pilot Filter
- Easy to Service & Maintain
- Easy Retrofit Installation
- One Control Spring for 0.2–17 bar pressure range*
*Depending on the specific model and configuration.
Specification Table
| Specification | Details |
|---|---|
| Product Name | – |
| Model | DP27 |
| Brand | Spirax Sarco |
| Product Type | Pressure Reducing Valve |
| User-Provided Size | 40mm |
| Application | Steam Line |
| Body Material | SG Iron |
| Operation | Self-Acting |
| Electrical Supply | Not Required |
| Inlet Connection | Threaded* |
| Outlet Connection | Threaded* |
| Thread Standard | BSP* |
| Port Gender | Female* |
| Detailed Port Size | 1/2 inch* |
| Minimum Operating Temperature | 0°C |
| Maximum Operating Temperature | 232°C |
| Minimum Outlet Pressure | 0.2 bar |
| Maximum Outlet Pressure | 17.2 bar |
| Control Spring Range | 0.2–17 bar* |
| Suitable Media | Steam, Air & Industrial Gases |
| Origin Reference | UK |
*These specifications may apply to a particular DP27 configuration and should be verified against the exact 40mm valve model.
The DP27 Pressure Reducing Valve automatically controls downstream pressure without requiring electricity.
Working Process
- High-pressure steam enters the valve.
- The valve senses downstream pressure.
- The internal diaphragm and control mechanism respond to pressure changes.
- The valve adjusts its opening to maintain the required downstream pressure.
- Changes in upstream pressure or steam demand are automatically compensated for within the valve’s operating design.
This helps provide a more stable and controlled pressure supply to downstream equipment.
Product Applications
The Spirax Sarco DP27 Pressure Reducing Valve is suitable for compatible applications such as:
- Steam distribution systems
- Industrial steam lines
- Process heating systems
- HVAC systems
- Textile industries
- Food processing plants
- Chemical processing
- Industrial air systems
- Industrial gas applications
- Manufacturing and process plants
Q&A:
১. Spirax Sarco DP27 কী?
উত্তর: এটি একটি Pressure Reducing Valve, যা steam বা অন্যান্য compatible media-এর downstream pressure কমানো ও নিয়ন্ত্রণ করার জন্য ব্যবহৃত হয়।
২. এই Valve-এর Brand কী?
উত্তর: এর Brand হলো Spirax Sarco।
৩. এটি কি Steam Line-এর জন্য ব্যবহার করা যায়?
উত্তর: হ্যাঁ, DP27 series industrial steam application-এর জন্য উপযুক্তভাবে ব্যবহৃত হয়।
৪. এটি কি বিদ্যুৎ ছাড়া কাজ করে?
উত্তর: হ্যাঁ, এটি একটি self-acting valve, তাই operation-এর জন্য আলাদা electrical supply প্রয়োজন হয় না।
৫. এটি কত Pressure Range নিয়ন্ত্রণ করতে পারে?
উত্তর: প্রদত্ত তথ্য অনুযায়ী একটি control spring configuration 0.2 bar থেকে 17 bar পর্যন্ত range cover করতে পারে। Exact range model অনুযায়ী যাচাই করা উচিত।
৬. সর্বোচ্চ Outlet Pressure কত?
উত্তর: প্রদত্ত specification অনুযায়ী সর্বোচ্চ outlet pressure 17.2 bar।
৭. সর্বোচ্চ Operating Temperature কত?
উত্তর: প্রদত্ত specification অনুযায়ী সর্বোচ্চ operating temperature 232°C।
৮. Valve Body Material কী?
উত্তর: প্রদত্ত specification অনুযায়ী valve body SG Iron।
৯. এটি কোন কোন Media-এর জন্য ব্যবহার করা যায়?
উত্তর: নির্দিষ্ট configuration অনুযায়ী steam, air এবং industrial gases-এর জন্য ব্যবহার করা যেতে পারে।
১০. কেন Spirax Sarco DP27 ব্যবহার করবেন?
উত্তর: Stable downstream pressure control, self-acting operation, compact design, serviceable components এবং industrial application suitability-এর কারণে এটি একটি কার্যকর pressure reduction solution।

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