What is the difference between BPC32 and BPC32Y models?

The BPC32 has an integral flat strainer screen, while the BPC32Y incorporates a cylindrical Y-type strainer offering larger filtration area. Both function identically otherwise—select based on debris load in your system.

When should I specify the check valve variant (BPC32CV/BPC32YCV)?

Use check valve models when condensate discharges into common return lines with fluctuating or intermittent backpressure. The integral check valve prevents reverse flow that could cause waterlogging or trap malfunction.

How do I choose between STD, SUB, and NTS capsule fills?

STD (12°C subcooling) suits most applications. Use SUB (24°C subcooling) where maximum heat recovery is needed or longer condensate retention is acceptable. NTS (6°C subcooling) is preferred when rapid condensate discharge is critical and minimal subcooling is tolerable.

Is certification documentation available for critical applications?

Yes, EN 10204 3.1 certification is available. All certification and inspection requirements must be stated at the time of order placement.

SPIRAX SARCO · STEAM TRAPS

Spirax Sarco BPC32 & BPC32Y Carbon Steel Balanced Pressure Thermostatic Steam Traps

Name: Spirax Sarco BPC32 & BPC32Y Carbon Steel Balanced Pressure Thermostatic Steam Traps
Brand: Spirax Sarco

Spirax Sarco BPC32/BPC32Y carbon steel thermostatic steam traps for industrial condensate drainage. DN15-DN25, PN40 rated. Available at PC Engineering

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Overview

The Spirax Sarco BPC32 and BPC32Y are carbon steel maintainable balanced pressure thermostatic steam traps designed for efficient condensate removal in industrial steam systems. These traps utilize a temperature-sensitive capsule that responds to the difference between steam and condensate temperatures, ensuring live steam is retained while condensate is discharged effectively.

The BPC32 features an integral flat strainer screen, while the BPC32Y incorporates a cylindrical Y-type strainer for enhanced debris filtration. Both models are fully maintainable, waterhammer-resistant, and suitable for installation in any orientation—horizontal or vertical. Variants with integrated check valves (BPC32CV and BPC32YCV) are available for applications with fluctuating backpressure.

Three capsule fill options allow precise temperature control: Standard (STD) operates approximately 12°C below saturation, Sub-cooled (SUB) at 24°C below, and Near-to-Steam (NTS) at 6°C below saturation temperature—enabling selection based on specific process requirements.

Key Features

Carbon steel construction — Body and flanges in DIN 17243 C22.8 / ASTM A105N for durability in demanding environments
Balanced pressure thermostatic operation — Reliable condensate discharge without live steam loss
Integral strainer — Flat screen (BPC32) or Y-type cylindrical (BPC32Y) protects internals from debris
Waterhammer resistant — Robust design withstands hydraulic shock in steam lines
Multiple capsule fills available — STD, SUB, or NTS for application-specific subcooling
Check valve variants — BPC32CV and BPC32YCV prevent reverse flow in backpressure conditions
Full vacuum rated — Verified safe for vacuum service on screwed, socket weld, butt weld, and flanged connections
PED 2014/68/EU compliant — Meets European Pressure Equipment Directive requirements

Specifications

Parameter	Value
Sizes	DN15, DN20, DN25 (½", ¾", 1")
Body Material	Carbon Steel DIN 17243 C22.8 / ASTM A105N
Capsule & Internals	Stainless Steel
Pressure Rating	PN40
Max. Allowable Pressure (PMA)	50 bar g @ 50°C (725 psi g @ 122°F)
Max. Operating Pressure (PMO)	32 bar g @ 281°C (464 psi g @ 537°F)
Max. Allowable Temperature (TMA)	400°C @ 35 bar g (752°F @ 508 psi g)
Min. Operating Temperature	0°C (32°F); down to -60°C (-76°F) allowable
Cold Hydraulic Test Pressure	75 bar g (1088 psi g)
End Connections	Screwed BSP/NPT, Socket Weld (BS 3799), Butt Weld (EN 12627), Flanged (EN 1092 PN40, ASME B16.5 Class 150/300, JIS/KS 10K/20K)
Certification	EN 10204 3.1 available on request
Standards	PED 2014/68/EU, AD-Merkblatt WO/TRD100
Weight (DN15 Screwed)	1.4 kg (3.1 lbs)
Weight (DN15 Flanged)	2.9 kg (6.4 lbs)

Applications

Spirax Sarco BPC32 and BPC32Y thermostatic steam traps are suited for a wide range of industrial condensate drainage applications:

- Process heating equipment — Heat exchangers, jacketed vessels, coils - Tracing lines — Steam tracing on pipelines for temperature maintenance - HVAC systems — Unit heaters, air handling units, radiators - Low-capacity drip legs — Removal of condensate from steam mains and branch lines - Instrument and control systems — Where compact, reliable steam trapping is required

Industries served include pharmaceuticals, chemicals, food & beverage, textiles, refineries, and general manufacturing plants across India.

Frequently Asked Questions

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Contact PC Engineering for pricing, availability, and technical support for Spirax Sarco BPC32 & BPC32Y Carbon Steel Balanced Pressure Thermostatic Steam Traps.

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