Is this strainer approved for IBR applications in India?

Yes, the Fig 34 strainer fully complies with Indian Boiler Regulations, 1950. IBR certification and manufacturer's Typical Test Report are available — these must be specified at the time of order placement.

What screen perforation size should I select for my steam system?

For general steam applications protecting steam traps and valves, the standard 0.8 mm perforation (DN15-DN80) or 1.6 mm (DN100-DN200) is recommended. For finer filtration requirements, Mesh 100 or Mesh 200 screens are available.

Can this strainer handle superheated steam?

Yes, the ASME Class 300 variant is rated for temperatures up to 398.8°C at 34.8 bar g, making it suitable for superheated steam applications within these limits.

How should the strainer be oriented during installation?

For steam or gas applications, install with the strainer pocket in the horizontal plane. For liquid systems, the pocket should point downwards to facilitate debris collection and drainage.

What spare parts are available for this strainer?

Strainer screens (specify material, perforation/mesh size, and strainer size) and cap gasket sets (packet of 3) are available as spare parts. Regular screen cleaning or replacement is recommended during scheduled maintenance.

SPIRAX SARCO · STRAINERS

Spirax Sarco Fig 34 Carbon Steel Y-Type Strainer - IBR Certified ASTM Material

Name: Spirax Sarco Fig 34 Carbon Steel Y-Type Strainer - IBR Certified ASTM Material
Brand: Spirax Sarco

Spirax Sarco Fig 34 carbon steel Y-type strainer for steam & industrial pipelines. IBR certified, ASME flanged, DN15-DN200. Buy from PC Engineering India.

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Spirax Sarco Fig 34 Carbon Steel Strainer

Overview

The Spirax Sarco Fig 34 is an integrally flanged Y-type strainer designed to remove rust, scale, and other debris from steam and process pipelines. Manufactured from carbon steel to ASTM standards, this strainer is suitable for demanding industrial environments where pipeline protection is critical.

The Fig 34 features a standard stainless steel screen with 0.8 mm perforations for DN15 to DN80 sizes and 1.6 mm perforations for DN100 to DN200 sizes. The Y-type configuration allows for easy inline installation and convenient maintenance access without removing the strainer from the pipeline.

This strainer fully complies with Indian Boiler Regulations (IBR), 1950, making it suitable for boiler and steam system applications across Indian manufacturing facilities. A low temperature carbon steel variant is available on request for specialized applications.

Key Features

IBR Certified: Fully compliant with Indian Boiler Regulations, 1950
ASTM Grade Materials: Body in ASTM A216 WCB carbon steel for high-pressure service
Wide Size Range: Available from DN15 to DN200
Dual Pressure Classes: ASME Class 150 and ASME Class 300 flanged connections
Stainless Steel Screen: Standard SS 316L screen resists corrosion
Optional Screen Materials: Monel screens available for corrosive media
Multiple Perforation Options: 0.8 mm, 1.6 mm, 3.0 mm perforations and Mesh 40, 100, 200
Blowdown/Drain Provision: Cap can be drilled for blowdown or drain valve connection

Specifications

Parameter	ASME Class 300	ASME Class 150
Maximum Allowable Pressure (PMA)	50 bar g @ 37.7°C	19.6 bar g @ 38°C
Maximum Allowable Temperature (TMA)	398.8°C @ 34.8 bar g	400°C @ 6.5 bar g
Minimum Allowable Temperature	-29°C	-29°C
Maximum Operating Pressure (PMO)	34.8 bar g @ 398.8°C	6.5 bar g @ 400°C
Maximum Operating Temperature (TMO)	398.8°C @ 34.8 bar g	400°C @ 6.5 bar g
Max Cold Hydraulic Test Pressure	75 bar g	29 bar g
Component	Material
Body	Carbon Steel ASTM A216 WCB
Cap (DN15-DN50)	Forged Steel A105N
Cap (DN65-DN200)	Carbon Steel ASTM A216 WCB
Cap Gasket	Reinforced Exfoliated Graphite
Strainer Screen	Stainless Steel ASTM A240 316L
Bolts	Carbon Steel ASTM A193 B7

Applications

The Spirax Sarco Fig 34 Y-type strainer is used in:

- Steam Systems: Protecting steam traps, control valves, and pressure reducing valves - Boiler Plants: Pre-filtration in boiler feed lines and condensate return systems - Process Industries: Pharmaceutical, chemical, textile, and food processing plants - Power Generation: Thermal power plants and co-generation facilities - Refineries & Petrochemical: Upstream protection of critical equipment - HVAC Systems: Industrial heating and cooling installations

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