KSB Cast Carbon Steel Globe Valve Class 150/300/600 WCB — Bolted Bonnet, Flanged & Butt Weld

Name: KSB Globe Valve Carbon Steel WCB Class 150, 300, 600
Brand: KSB
Availability: InStock

Specifications

Parameter	Specification
Series	SICCA 150-600 GLC
Body Material	A216 WCB (Cast Carbon Steel)
Pressure Class	Class 150, 300, 600
Size Range	NPS 2–10 (DN 50–DN 250)
Max Temperature	425°C (800°F)
Max Pressure	103 bar (1500 psi)
Design Standard	BS 1873
End Connections	Flanged RF/RTJ, Butt Weld
Bonnet Design	Bolted bonnet, outside screw & yoke
Trim	Trim 8 (Stellite/13% Cr) for Class 150/300/600, Trim 5 (Stellite/Stellite) for Class 600
IBR Certified	Yes

✓ Stellite Hard-Faced Seats✓ IBR Certified✓ BS 1873

Material & Applications

Why Carbon Steel WCB: A216 WCB is the standard carbon steel casting grade for valves, widely available and cost-effective. It covers the majority of industrial applications where temperatures don’t exceed 425°C and the fluid is non-corrosive. Most commonly specified for utility services, steam systems, and general process piping.

Typical applications: General industrial service, refineries, power stations, process engineering, pipelines, tank farms. Suitable for water, steam, oil, gas, condensate, and non-aggressive fluids up to 425°C.

Pressure/Temperature Ratings

Permissible operating pressures per ASME B16.34:

Rating	Permissible Operating Pressure at Temperature
Class 150	-29 to 38°C: 20 bar	204°C: 14 bar	316°C: 10 bar	425°C: 6 bar
Class 300	-29 to 38°C: 51 bar	204°C: 44 bar	316°C: 39 bar	425°C: 28 bar
Class 600	-29 to 38°C: 102 bar	204°C: 87 bar	316°C: 78 bar	425°C: 57 bar

Dimensions & Weights

Class	NPS	Face-to-Face (mm)	Weight (kg)
150	2	350	25/20
150	3	420	40/40
150	4	480	60/55
150	6	575	120/90
150	8	685	145/130
150	10	870	260/240
300	2	360	32/25
300	4	520	75/65
300	6	620	135/120
300	8	840	305/260
300	10	910	375/315
600	2	415	45/40
600	4	570	110/100
600	6	790	215/165
600	8	920	540/500
600	10	1140	790/720

Weights are approximate. Dimensions for flanged ends where applicable. Contact us for butt weld dimensions.

Carbon Steel WCB Globe Valve FAQs

What is a KSB WCB globe valve?

A cast carbon steel globe valve with body material ASTM A216 WCB. “WCB” stands for Weldable Carbon steel grade B — the most common casting grade for industrial valves. KSB manufactures these under the SICCA 150-600 GLC series with bolted bonnet design to BS 1873.

What is the maximum temperature for WCB globe valves?

425°C (800°F). While ASME B16.34 allows WCB up to 538°C, prolonged use above 425°C is not recommended due to graphitization risk. For higher temperatures, specify WC6 (up to 593°C) or stainless steel CF8/CF8M (up to 537°C).

What end connections are available?

KSB SICCA 150-600 GLC globe valves are available with flanged ends (RF or RTJ) to ASME B16.5 and butt weld ends to ASME B16.25. Flanged ends are standard. Schedule 40 for Class 150/300, Schedule 80 for Class 600.

Is this valve IBR certified?

Yes. KSB SICCA 150-600 GLC valves meet the requirements of the Indian Boiler Regulations 1950. IBR certification is essential for boiler feed, main steam, and other statutory applications in Indian power plants and sugar factories.

What sizes are available in Class 600?

Class 600 is available in NPS 2, 3, 4, 6, 8, and 10 (NPS 5 is not available in Class 600). Weights range from 45 kg (NPS 2, flanged) to 790 kg (NPS 10, flanged).

KSB Cast Carbon Steel Globe Valve Class 150/300/600

Specifications

Material & Applications

Pressure/Temperature Ratings

Dimensions & Weights

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