J11Y Series Forged Steel Internal Thread Globe Valves
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
J11Y Series Forged Steel Internal Thread Globe Valves
Overview
The J11W Forged Steel Internal Thread Globe Valve is a valve designed for reliable on/off service in pipelines, operating through a stem-driven disc that moves vertically along the seat centerline. Its core design features a body constructed from high-quality forged steel, ensuring structural integrity and safety under high-pressure, high-strength, and demanding operating conditions. The sealing surfaces of the disc and seat are typically machined directly from the base material or overlaid with hard alloy, forming a metal-to-metal hard seal that provides excellent resistance to high temperatures, wear, and erosion. The valve employs an internal thread connection, allowing direct engagement with external pipe threads for a compact, robust, and easily installed joint. The valve structure is generally designed with a flow path following a "low-inlet, high-outlet" configuration to reduce operating torque. Operation is achieved via a manual handwheel that drives the stem, converting rotary motion into linear movement of the disc to ensure smooth and reliable opening and closing. This valve is specifically intended for use with demanding media such as steam, oil, and non-corrosive high-pressure gases and liquids. It is particularly suitable for applications requiring high nominal pressure, exceptional valve strength, and reliable sealing performance, including petroleum, chemical, power station, and high-pressure industrial pipeline systems.
Features
1.High Strength, Pressure Resistance, and Reliable Sealing:The valve body is integrally forged from high-quality forged steel, characterized by dense material structure and excellent mechanical properties, enabling it to withstand higher nominal pressures and pipeline stresses. The metal hard sealing pair offers outstanding resistance to high temperatures, high pressure, and erosion, ensuring long-term, reliable, and tight sealing even in demanding media.
2.Robust Structure and Reliable Connection:Featuring an internal thread connection, the valve ensures a tight fit with pipelines for easy installation. The high-strength nature of forged steel guarantees that the connection remains stable and reliable under complex operating conditions such as high pressure, vibration, and sudden temperature changes, effectively preventing leakage and loosening.
3.Stable Operation and Precise On/Off Control:The handwheel drive, combined with a precision-machined trapezoidal threaded stem, ensures smooth transmission and excellent self-locking performance. The disc moves vertically along the seat centerline with precise trajectory, enabling smooth opening and closing operations and reliable shut-off functionality, making it suitable for applications requiring precise control.
4.Temperature and Corrosion Resistance with Long Service Life:The forged steel body exhibits good high-temperature stability and resistance to various non-corrosive media. The hard sealing pair has a low wear rate, significantly extending the valve’s service life in media such as high-temperature steam, oil, and high-pressure gases, while reducing maintenance frequency.
5.Suitability for Demanding Conditions and Media:Specifically designed for harsh operating conditions with nominal pressures ranging from PN25 to PN160 or higher (e.g., Class 150, 300). It is suitable for high-temperature and high-pressure steam, oil and gas, urea, and chemical media that require high strength but are not highly corrosive. Widely used in power plants, petrochemical, refining, and high-pressure industrial installations.
6.Clear Flow Direction and Safety-Oriented Design:The valve typically adopts a standard "low-inlet, high-outlet" flow direction, effectively reducing the media pressure on the stem packing gland and enhancing operational safety and sealing reliability. The robust forged steel structure provides inherent safety redundancy, complying with the safety standards for high-pressure pipelines.
Dimensions & constructral diagram
J11Y Series Forged Steel Internal Thread Globe Valves constructral diagram
Part Name and Material List
| Valve Body | A105N | A182 F22 | A182 F304(L) | A182 F316(L) |
|---|---|---|---|---|
| Disc | A276 420 | A276 F22 | A276 304(L) | A276 F316(L) |
| Stem | A182 F6a | A182 | A182 F304(L) | A182 F316(L) |
| Gasket | 316 Clad Flexible Graphite | 316 Clad PTFE | ||
| Bonnet | A105N | A182 F22 | A182/F304(L) | A182/F316(L) |
| Bonnet Bolt | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
Performance Specification Table
| Performance Specification Sheet | ||
|---|---|---|
| Nominal Pressure (PN) | 1.6/2.5/4.0/6.4/10.0/16 | MPa |
| Strength Test Pressure | 2.4/3.75/6/9.6/15/24 | MPa |
| Seal Test Pressure | 1.76/2.75/4.4/7.04/11/17.6 | MPa |
| Applicable Temperature | 450 | ℃ |
J11Y Series Forged Steel Internal Thread Globe Valves constructral diagram
J11Y Series Forged Steel Internal Thread Globe Valves overall dimension table
| NPS | Bore Type | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | / |
|---|---|---|---|---|---|---|---|---|---|
| Reduced Bore | — | 79 | 92 | 111 | 120 | 152 | 172 | 200 | |
| Full Bore | — | 79 | 92 | 111 | 120 | 152 | 172 | 200 | |
| H (open) | 166 | 166 | 171 | 207 | 240 | 258 | 330 | 355 | |
| W | 100 | 100 | 100 | 125 | 160 | 160 | 180 | 200 | |
| Weight | Bolted Type | 1.9 | 1.9 | 2.1 | 3.5 | 6.0 | 7.5 | 11.4 | 14.6 |
| Welded Type | 1.7 | 1.7 | 1.9 | 3.3 | 5.2 | 6.8 | 10.6 | 13.8 | |
