Class 1500 Closed Die Forged PSB Globe Valve

Valve Type Globe Valve (Stop-Check Optional)
Bonnet Type Self-Sealing Bonnet (Pressure Seal Design)
Design Standard ASME B16.34, API 623
Size Range (NPS) 2″ to 24″
Pressure Class ASME 1500 LB
Temperature Range -29°C to 593°C (-20°F to 1100°F)
End Connections • Butt Weld (ASME B16.25)
• Flanged (ASME B16.5 Class 1500)
Face-to-Face ASME B16.10 Class 1500
Body Material Forged Steel (ASTM A182)

Description

Class 1500 Die-Forged PSB Globe Valve (ASME B16.34)

GENERAL SPECIFICATIONS

Parameter	Technical Requirement
Valve Type	Globe Valve (Stop-Check Optional)
Bonnet Type	Self-Sealing Bonnet (Pressure Seal Design)
Design Standard	ASME B16.34, API 623
Size Range (NPS)	2″ to 24″
Pressure Class	ASME 1500 LB
Temperature Range	-29°C to 593°C (-20°F to 1100°F)
End Connections	• Butt Weld (ASME B16.25) • Flanged (ASME B16.5 Class 1500)
Face-to-Face	ASME B16.10 Class 1500
Body Material	Forged Steel (ASTM A182)

CONSTRUCTION MATERIALS

Component	Material Standard	Grade/Details
Body & Bonnet	ASTM A182	F22 / F91 / F316 (Forged)
Bonnet Seal	Self-Energizing Seal	Inconel Pressure Seal Ring
Stem	ASTM A182	F6a (13Cr) or F316
Seat & Disc	Stellite Overlay	#6 or #21 Alloy

III. SELF-SEALING BONNET MECHANISM

Feature	Technical Principle
Sealing Method	Pressure-Actuated Self-Energizing • System pressure compresses seal ring against bonnet groove • Sealing force ↑ as pressure ↑ (Zero leakage >600 PSI)
Seal Ring	Inconel 600/625 (Conical Section)
Gasket	Not Required (Seal ring replaces gasket)
Advantage	Eliminates bolt re-torquing in high-temperature service

PERFORMANCE DATA

Feature	Specification
Bonnet Leakage	ASME B16.34 Class A (Zero detectable leak)
Seat Leakage Class	Class IV (Standard), Class VI (Optional)
Fire-Safe Rating	API 607 Certified

APPLICATIONS

► High-Pressure Systems (>100 bar) where thermal cycling causes bolt relaxation
► Power plant steam headers & turbine inlets
► Refinery hydrocracker units

TECHNICAL HIGHLIGHTS

SELF-SEALING BONNET: Pressure-energized seal ensures zero leakage at 593°C/1100°F without bolt re-tightening
NO GASKET FAILURE RISK: Metallic seal ring replaces conventional gaskets
AUTOMATIC SEALING FORCE: Sealing pressure increases proportionally with system pressure

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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