Utility Steam Safety valve solution from LESER India

Type 237

Compact Performance Series

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Utility Steam Applications Typical application requirements include: - Small to medium capacities - Compact and efficient valve design- Corrosion resistance - Short delivery times ex stock Originally steam technology has been the key invention to enable industrial development and has been enhanced and improved over decades. Even today it is still one of the main mediums to transport energy and heat in process plants and facilities for industries such as:

Chemicals Food and Beverages Power and Steel Pharmaceuticals

Petrochemicals Steel Production Sugar Textiles

As all steam systems are working under pressure, they need to be protected against undesired overpressure situations to ensure the safety of employees, equipment and environment. In India steam applications are regulated by the Indian Boiler Regulation (IBR) and the most common solution is to install a reliable safety valve. The applications can typically be categorized into a high pressure, high temperature primary cycle and a lower pressure secondary cycle of utility steam.

The two drawings below show typical installations of safety valves in utility steam applications:

Primary cycle Secondry cycle

Utility Steam Applications

Utility steam is either generated from a dedicated small capacity boiler (with less than 1000 kg/hr steam capacity) or derived from an already available high capacity boiler and reduced to utility steam through a pressure reducing station. For the low capacity boilers, often referred to also as “baby boilers” Type 237 can be sufficient as a primary protection device on the boiler drum. Where larger capacity boilers are used the application of Type 237 is after the pressure reducing station to protect the utility steam lines or the steam consuming equipments.

Typical utility steam applications:

Applications

Jacketing Steam:In chemical and pharma-ceutical processes the reactor/process vessels are provided with steam jacketing to maintain the required process tempe-rature.

Textile production:In the dying and pro-duction processes for cloth various chemicals are used that have to be activated and distributed under heat which is indu-ced by steam.

Other processes:Where steam is used as a medium for maintaining elevated temperatures:In various processes like block board and plywood manufacturing, paper recycling, Tyre chord ma-nufacturing and moulding utility steam is used as a standard medium.

• Long lifetime and reliable function - Based on German proven design with more than 15 years track record in the field

- High grade standard materials (Full stainless steel)

- IBR certification

- Full traceability in materials sourcing and certification

• Short delivery times - Standardized configurations for utility steam available of the shelf

- Completely produced in house in India

• Competitive pricing - Economic and streamlined design for small size and few components

- Possibility of standardized regular agreements

Benefits :

Sizes For utility steam processes commonly defined requirements and utilized safety valve configurations have been established across industries. These requirements can be met with standard configuration LESER Type 237

Sizes: 3/4” x 1” ; 1” x 1” (Inlet x Outlet)

Connections: Threaded (BSP, NPT, BSPT)

Set pressures: 3.5 bar-g; 7.5 bar-g

Also various other sizes, threading types and set pressures are possible. For full technical specification and options please refer to the FL237 product catalogue.

Body / Inlet Body Outlet Body Disc Spring

AISI 316A 351 Gr.

CF8MAISI 316

Stainless SteelAlloy Steel

References

Dalal Engineering Pvt. Ltd. Mylan Pharmaceuticals Private Limited Indo German Pharma Engineers

Pharmalab India Pvt. Ltd. Machin Fabrik Industries Pvt. Ltd.

Approvals:

• Designed and tested by TUV in acordance with the rules of DIN EN ISO 4126 and ASME Section VIII Div. 1

• IBR Certificate Form III C (without attachment 11)

• Third party inspections possible

Materials

Type 237 Steam applications

Edition June 2015

How to contact LESER India

Head office in Mumbai 136/137, Sanjay Bldg. No. 3, Mittal EstateMarol, Andheri Kurla Road,Andheri (E), Mumbai - 400 059IndiaTelephone: +91 22 28532200E-mail: info@leser.co.in

Manufacturing facility in PaithanD-3, M.I.D.C. Paithan,Dist. Aurangabad,Maharashtra - 431 148IndiaE-mail: sales@leser.co.inwww.leser.co.in

LESER India factory in Paithan

Assembly of safety valves

Cap H2

Adjusting screw with bushing

Lock nut

Upper spring plate

Spring

Spindle

Outlet body

Lower spring plate

Roll pin for disc

Ball

Lifting aid

Disc

Inlet body

Seal wire

Lead seal

Knob

Securing ring

Roll pin

Lever cover

Parallel pin

Spindle cap /

coupling

O-ring

Seal wire

Lead seal

Technical Details Valve Type 237

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