Direct answer · Updated 26 October 2026
How do I RFQ a WCB Class 150 gate valve?
Send NPS, quantity, trim, flexible/solid wedge, gear if needed, and IBR yes/no. Supreme Valves manufactures API 600 OS&Y ASTM A216 WCB Class 150 RF gates with API 598 testing — a core pattern on India and export RFQs.
Request a quotation · +91 97732 78770 · info@supremevalves.in
RFQ: WCB Gate Valve Class 150 OS&Y
The standard flanged cast steel isolation gate on process and utility BOQs.
Why this page exists (19 similar lines in our RFQ archive)
Class 150 WCB OS&Y gates are the baseline isolation valve on EPC line lists before Class 300/600 upgrades.
Across 952 recent quotation / BOQ lines synced into our RFQ system, this type–material–class pattern appears repeatedly. Pages like this match how EPC and trading houses write enquiries — not brochure marketing copy.
Real BOQ wording we see
- BOLTED BONNET GATE VALVE. SIZE 80 MM. CLASS 150. ENDS BUTT WELD. BODY ASTM A216 GR. WCB. TRIM ASTM A182 GR. F6A. RISING STEM OS&Y. STEAM SERVICE. IBR CERTIFICATION. FACE-TO-FACE / ENDS ASME B16.9 / B16.10 PRACTICE AS APP
- FLEXIBLE WEDGE GATE VALVE. SIZE 250 MM. RATING ASME CLASS 150. BODY ASTM A216 GR. WCB. TRIM 13CR / SS410. ENDS FLANGED ASME B16.5 CLASS 150. GEAR OPERATED WITH HANDWHEEL. OS&Y BOLTED BONNET PRACTICE. TESTING API 598. EN
- FLEXIBLE WEDGE GATE VALVE. SIZE 300 MM. RATING ASME CLASS 150. BODY ASTM A216 GR. WCB. TRIM 13CR / SS410. ENDS FLANGED ASME B16.5 CLASS 150. GEAR OPERATED WITH HANDWHEEL. OS&Y BOLTED BONNET PRACTICE. TESTING API 598. EN
Paste your full line list — we return a techno-commercial offer with MTC and test scope.
What we supply against this RFQ pattern
What to send with your enquiry
- NPS + qty
- Trim / Stellite
- Gear operator?
- IBR?
Send the line list or datasheet to info@supremevalves.in or use the quote builder. Technical clarifications and a priced offer follow within one working day for standard items.
Related products and guides
WCB gate manufacturer
Full range.
WCB Class 600 gate RFQ
Higher pressure.
A105 Class 800 gate RFQ
Forged small bore.
IBR gate manufacturer
Boiler stamped.
Frequently asked questions
Flexible or solid wedge?
Flexible for thermal cycling (steam); solid for general service.
When to add gear?
Usually NPS 8 and above, or where handwheel torque is high.
About this page: Written by the Supreme Valves India engineering team, Ahmedabad (supplying industrial valves since 1986). Last reviewed 26 October 2026. Figures are typical values for selection; the governing values are those in the referenced standard and on the approved datasheet for each order. Entity facts: Supreme Valves brand facts.
Send your WCB Class 150 gate BOQ
Send size, pressure rating, material, end connection and service. Engineering response within one working day.