12″ * 10″-600LB Open Die Forged Choke Valve

Valve Type Needle / Choke Type Throttling Valve (Globe pattern or Angle pattern)
End Connection Flanged, Raised Face (RF)
Body Manufacturing Process Open Die Forging (Free Forging)
Nominal Size NPS 12 × 10 (DN300 × DN250)
Port Reduction Inlet 12″, Internal seat bore reduced to 10″
Pressure Class Class 600 (ASME B16.5)
Body Material A105 (Carbon Steel)
Service Medium Water / Oil / Gas / Steam (as per process)

Description

TECHNICAL DATA SHEET

Free Forged Throttling Valve / Choke Valve

Project / Equipment: High Pressure Throttling Valve

BASIC VALVE INFORMATION

Item	Specification
Valve Type	Needle / Choke Type Throttling Valve (Globe pattern or Angle pattern)
End Connection	Flanged, Raised Face (RF)
Body Manufacturing Process	Open Die Forging (Free Forging)
Nominal Size	NPS 12 × 10 (DN300 × DN250)
Port Reduction	Inlet 12″, Internal seat bore reduced to 10″
Pressure Class	Class 600 (ASME B16.5)
Body Material	A105 (Carbon Steel)
Service Medium	Water / Oil / Gas / Steam (as per process)

APPLICABLE CODES & STANDARDS

Standard	Description
API 6A	Specification for Wellhead and Christmas Tree Equipment (if applicable to choke design)
API 6D	Specification for Pipeline and Piping Valves
ASME B16.34	Valve Flange, Threaded, and Welding End Dimensions
ASME B16.5	Pipe Flanges and Flanged Fittings (Class 600 RF)
ASME B16.10	Face-to-Face and End-to-End Dimensions of Valves
API 598 / ISO 5208	Valve Inspection and Testing
ASTM A105 / ASME SA-105	Forgings, Carbon Steel, for Piping Components

MATERIALS OF CONSTRUCTION

Component	Material	Standard / Remarks
Body	A105	Open die forged, normalized
Bonnet / Cover	A105	Forged, bolted bonnet design
Disc / Plug / Needle	A105 + Hardfacing	Stellite 6 / 13Cr – erosion resistant
Seat Ring	A105 + Hardfacing	Integral or renewable, hardfaced sealing surface
Stem	A182 F6a (13Cr)	Stainless steel, anti-galling
Packing	Flexible Graphite	With Inconel wire reinforcement
Gasket	Spiral Wound	304SS + Graphite
Stud Bolts	A193 B7	High strength alloy steel
Nuts	A194 2H	Carbon steel

DESIGN & PERFORMANCE CHARACTERISTICS

Parameter	Specification
Pressure Class	Class 600
Max. Allowable Working Pressure	Per ASME B16.34, A105 @ 38°C: ~ 1480 psi (102 bar)
Design Temperature Range	-29°C to +425°C (-20°F to +800°F)
Flow Characteristic	Linear / Equal Percentage
Seat Leakage Rate	Class IV or Class V per FCI 70-2 / IEC 60534
Operation	Handwheel / Gearbox / Actuator ready
Flow Direction	Flow over seat (preferred) or Flow under seat

DIMENSIONS & CONNECTIONS

Item	Dimension (inch / mm)
Inlet Flange	12″ Class 600 RF per ASME B16.5
Outlet Flange	12″ Class 600 RF per ASME B16.5
Face-to-Face Length	Per API 6D / ASME B16.10 or manufacturer standard
Reduced Bore Diameter	Corresponding to NPS 10 (approx. 10″ seat bore)
Handwheel Diameter	As per manufacturer
Approx. Weight	As per manufacturer

SPECIAL REQUIREMENTS & REMARKS

Free Forging Process
Valve body shall be manufactured from open die forging using ingot or large billet.
Machining from bar stock or casting is NOT acceptable.
Reduced Port Design
Flange size: NPS 12
Internal seat bore and throttling area: Equivalent to NPS 10
Designed for precise pressure and flow control.
Hardfacing & Wear Resistance
Seat and disc contact surfaces shall be hardfaced with Stellite 6 or equivalent.
Minimum hardness after welding: 350–450 HB.
Nondestructive Examination (NDE)
Body forging to be ultrasonically tested per ASTM A388.
Critical areas (seat, bore, welds) to be MT or PT examined.
Compliance
Valve design, materials, and testing to fully comply with API 6A (if choke valve) and API 6D (pipeline valve) requirements.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.

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