NPS 1″ Class 1500 SW Forged Steel Globe Valve – A105 – Bolted Bonnet
Precision NPS 1″ Class 1500 Forged Steel Globe Valve in A105. API 602 / BS 5352 / ASME B16.34 compliant, contoured plug disc for linear throttling, Stellite hardfaced seat, bi-directional zero-leakage shutoff.
Description
The NPS 1″ Class 1500 Forged Steel Globe Valve (A105) is a heavy-duty compact flow control and throttling valve engineered and manufactured by XIAMEN GUTE VALVE MANUFACTURING COMPANY in strict compliance with API 602 / BS 5352 / ASME B16.34. Purpose-built for small-bore high-pressure throttling, continuous bypass regulation, and precision instrumentation sampling lines (NPS 1″ Class 1500 A105), this valve pairs an ultra-dense closed-die forged pressure boundary with an Outside Screw & Yoke (OS&Y) rising stem and an upward-closing plug disc to deliver exceptional throttling linearity and dependable bubble-tight isolation.
Technical Specification Matrix (FGLV-1500-BB-A105-1-SW)
| Nominal Diameter / Size | NPS 1″ |
| Pressure Rating / Class | Class 1500 |
| Design Standard | API 602 / BS 5352 / ASME B16.34 |
| Face-to-Face Sizing | API 602 Compact Face-to-Face Dimensions |
| End Connection Topology | Socket Weld (SW) per ASME B16.11 / Threaded (NPT) per ASME B1.20.1 / Flanged Raised Face (RF) |
| Pressure Boundary Metallurgy | ASTM A105 Forged Carbon Steel (High-density forged pressure boundary engineered for small-bore high-pressure throttling, steam extraction, and hydrocarbon bypass loops up to 425°C) |
| Plug Disc & Seat Trim | Contoured Plug Disc with Stellite® Cobalt-Base Hardfaced Seat Ring |
| Pressure Testing Mandate | API 598 / API 602 High-Pressure Hydrostatic & Pneumatic Shell Test |
| Traceability & Certification | EN 10204 3.1 Mill Test Certificate & PMI XRF Analysis Included |
Quality Assurance, Inspection & NDT Protocols
- 1. 100% Positive Material Identification (PMI): Spectro XRF chemical alloy verification on every A105 forged body, bonnet, and trim component per ASTM E1476.
- 2. Hydrostatic Shell & Throttling Seat Testing: 100% factory pressure tests verifying zero leakage per API 598 / API 602 High-Pressure Hydrostatic & Pneumatic Shell Test (Shell tested at 1.5x CWP).
- 3. Dimensional Metrology & Thread Verification: CMM measurement of end-to-end lengths, socket weld depths, and NPT thread profiles.
- 4. Full Compliance Documentation: Traceable EN 10204 3.1 Mill Test Reports supplied with every shipment.
Frequently Asked Technical Questions (FGLV-1500-BB-A105-1-SW)
A: The conical plug disc incorporates a streamlined hydrodynamic profile that progressively expands the fluid boundary layer. This controls the localized pressure gradient across the seat orifice, effectively mitigating localized vena contracta cavitation and wire-drawing under severe differential pressure drops.
A: Closed-die forging aligns the metallurgical grain flow along the contours of the valve body, completely eliminating internal porosity, shrinkage cavities, and micro-fissures inherent in small-diameter castings, ensuring absolute pressure containment under severe thermal and piping bending moments.
A: Yes. In strict compliance with API 602, model FGLV-1500-BB-A105-1-SW incorporates an integral conical backseat shoulder on the stem. When rotated to the fully open position, this shoulder mates tightly against the bonnet backseat bushing, hermetically isolating the packing chamber from line pressure.
Need Technical Drawings or an RFQ Proposal?
Our valve engineering team provides certified dimensional general arrangement (GA) drawings, torque sizing calculations, and formal commercial quotations.
Additional information
| Valve Type | Globe Valve |
|---|---|
| Size | NPS 1″ |
| Pressure Class | Class 1500 |
| Bonnet Type | BB (Bolted Bonnet) |
| Body Material | A105 |
| End Connection | SW |
| Face to Face | ASME B16.10 |
| Inspection Standard | API 598 |
| Fire Safe | API 607 |
| Manufacturer | XIAMEN GUTE VALVE MANUFACTURING COMPANY |
| Material | |
| Pressure | |
| Valve Size | |
| Connection | |
| Valve Type | |
| Design Standard | ASME Standard |
