Technical Datasheet -- Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI

Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI

Continuous Modulating Condensate Drainage for Process Steam Systems

Document No.SV-DS-STE-002

RevisionRev A

DateMay 2026

ManufacturerSupreme Valves India, Ahmedabad, Gujarat, India

This datasheet covers ball float steam traps in carbon steel for continuous modulating condensate drainage from process heat exchangers, steam mains, and tracing lines rated to 600 PSI.

Technical Specifications

Parameter	Specification
Trap Size Range	DN15 to DN50 (1/2" to 2")
Pressure Rating	PN25 / PN40 / Class 300 / 600 PSI max operating
Body Material	WCB carbon steel or CF8M (SS316)
Float Material	SS304 thin-walled float with leak-test certification
Valve / Seat Material	SS316 with Stellite 6 or 13Cr hard-faced seat
Air Vent	Thermostatic bimetallic air vent or balanced-pressure thermostatic capsule
Maximum Operating Pressure	42 bar g (600 PSI)
Maximum Operating Temperature	+425°C (saturated steam)
Capacity	300 kg/h to 3,000 kg/h depending on size and differential pressure
End Connections	Screwed NPT / BSPT, socket weld, flanged
Discharge	Modulating continuous discharge proportional to condensate load
Back Pressure Tolerance	Up to 80% of inlet pressure

Materials of Construction

Component	Material
Body	WCB carbon steel, sand cast or investment cast, machined seat and float chamber
Cover	WCB bolted cover with spiral-wound gasket
Float	SS304 thin-walled welded float, 100% helium leak tested before assembly
Valve Plug	SS316 with Stellite 6 overlay, guided by upper and lower bearings
Seat	Integral SS316 with Stellite 6; replaceable seat ring on high-pressure models
Air Vent	Bimetallic strip or balanced-pressure capsule in SS316 housing
Gasket	Spiral-wound SS316 + graphite for body/cover joint

Testing & Inspection

Test	Requirement
Test Standard	ISO 7842 / EN 26948 cold water test
Certification	CE, ISO 9001, IBR

Applicable Standards

Standard	Description
Design Standard	ISO 6552 / EN 26704

Notes

Float traps are sensitive to water hammer; install with adequate drip leg volume and avoid direct discharge from high-velocity steam into trap.
Back pressure must not exceed 80% of inlet pressure; higher back pressure causes float to remain depressed and trap to flood.
Bimetallic air vent opens on cold start-up and closes at ~100°C; for systems with high non-condensable gas load, specify balanced-pressure capsule vent.
For superheated steam above 350°C, specify SS316 body and Inconel float with extended bonnet to protect vent from radiant heat.
Trap must be installed with float chamber vertical and flow direction as marked; horizontal installation requires special float guide and must be specified.

Frequently Asked Questions

Which standards does the Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI comply with?

The Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI is designed, manufactured, and tested in accordance with applicable API / ASME / BS / ISO international standards. Compliance documentation and Material Test Certificates (EN 10204 3.1) are provided with every order.

What materials of construction are available for the Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI?

Standard construction is carbon steel, stainless steel (CF8 / CF8M), and special alloy grades. Alternative and upgraded grades -- Duplex, Super Duplex, Inconel, Monel, Hastelloy, and NACE MR0175 trims for sour service -- are available on request.

What sizes and pressure ratings does the Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI cover?

It is offered in a range of sizes as per the technical specification with standard ANSI / ASME pressure classes (PN ratings on request). End connections include flanged (RF / RTJ), butt-weld, socket-weld, and screwed ends as per specification.

Can Supreme Valves supply the Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI for export to Saudi Arabia and the Middle East?

Yes. Supreme Valves India is an established exporter of industrial valves to Saudi Arabia (KSA), the UAE, Qatar, Kuwait, Oman, Bahrain, and across the Gulf. We provide sea-worthy export packing, EN 10204 3.1 / 3.2 certification, certificate of origin, and support for SABER / SASO conformity on KSA shipments.

What testing and certification is provided with the Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI?

Every valve undergoes hydrostatic shell and seat testing per API 598 / ISO 5208. Documentation includes EN 10204 3.1 MTC (3.2 on request), NDT reports, and fire-safe (API 607) or NACE MR0175 certification where applicable. Third-party inspection by TÜV, SGS, Bureau Veritas, or Lloyd's Register can be arranged.

What is the minimum order quantity and lead time for the Float Steam Trap -- Ball Float Type Carbon Steel 600 PSI?

Order quantities are flexible -- from single units for stocked items to bulk volumes for project requirements. Lead time depends on size, material, and quantity; please contact our team with your specification for a firm delivery schedule and quotation.

Supreme Valves India