Adoption standard
1.The design,manufacture according to ASME B16.34 orE101
2.The structure of the length according to ASME B16.10 or E101
3,Connecting flange in accordance with ASME B16.25,or by user request (to be specified in the contract)
4.Valve inspection and testing according to ASME B16.34 or E101
5.If the choice of L-size E101.in order to be marked with the contract
Meterial of main parts
阀体 Valve body | 阀盖 Valve cover | 闸板 Gate board | 阀座 Seal | 阀杆 Stem | 填料 Packing | 适用介质 Suitable medium | 适用温度℃ Suitable temperature |
WCB |
WCB |
25+Stellite12 |
25+D507Mo |
25Cr2Mo1VA | 柔性石墨 Flexible graphite | 水、蒸汽、油品 Water,steam,oil |
425 |
WC6 |
WC6 | 25Cr2Mo1VA+ Stelite12 | 25Cr2Mo1VA+ Stellite6 |
25Cr2Mo1VA | 柔性石墨 Flexible graphite | 水、蒸汽、油品 Water,steam,oil |
540 |
WC9 |
WC9 | 25Cr2Mo1VA+ Stellite12 | 25Cr2Mo1VA+ Stellite6 |
25Cr2Mo1VA | 柔性石墨 Flexible graphite | 水、蒸汽、油品 Water,steam,oil |
570 |
Main dimensions and weight
DN (mm) | 250 | 320 | P54140V | |||||||||
L | H≈ | D0 | 重量(Kg) Weight | L | H≈ | D0 | 重量(Kg) Weight | L | H≈ | D0 | 重量(Kg) Weight | |
65 | 340 | 680 | 400 | 150 | 420 | 815 | 510 | 160 | 420 | 815 | 510 | 160 |
80 | 390 | 820 | 510 | 160 | 470 | 895 | 560 | 200 | 470 | 895 | 560 | 200 |
100 | 480 | 910 | 560 | 240 | 570 | 975 | 610 | 270 | 570 | 975 | 610 | 270 |
125 | 580 | 985 | 610 | 270 | 660 | 1045 | 700 | 340 | 660 | 1045 | 700 | 340 |
150 | 630 | 1105 | 800 | 440 | 760 | 1246 | 800 | 470 | 760 | 1246 | 800 | 470 |
Pressure Seal Valve Cover Wheel Drive Steel Globe valve: Technical Data, Usage, Components, and Maintenance
The Pressure Seal Valve Cover Wheel Drive Steel Globe Valve is a high-performance industrial valve engineered for high-pressure and high-temperature applications. With its pressure seal bonnet design and wheel drive operation, this globe valve delivers leak-tight shut-off, enhanced durability, and precise fluid regulation. Manufactured from forged or cast steel, it is widely used in power plants, petrochemical refineries, chemical plants, and steam distribution systems.
This comprehensive guide covers technical parameters, operating precautions, component lists, and maintenance requirements, providing buyers and engineers with essential details for safe and efficient use.
Below is a general parameter table for a Pressure Seal Steel Globe Valve. Specifications may vary depending on manufacturer and customization.
| Parameter | Specification |
|---|---|
| Valve Type | Pressure Seal Globe Valve |
| Operation Mode | Wheel Drive (Handwheel, Gear, or Actuator Optional) |
| Nominal Diameter (DN) | DN50 – DN600 (2” – 24”) |
| Pressure Rating | Class 600 – Class 2500 (PN100 – PN420) |
| Body Material | Forged Steel / Cast Steel (A105, F11, F22, Stainless Steel) |
| Bonnet Type | Pressure Seal Bonnet |
| Seat Type | Renewable / Hard-Faced |
| Stem Type | Rising Stem with Precision Threads |
| Temperature Range | -29°C to +600°C (depending on material) |
| End Connection | Flanged (ASME B16.5), Butt Weld (ASME B16.25) |
| Standards | API 602 / API 600, ASME B16.34, ISO 9001 |
These technical details highlight the valve’s robust design, compliance with global standards, and suitability for extreme service conditions.
When installing and operating the Pressure Seal Wheel Drive Steel Globe Valve, the following precautions should be observed:
Verify the flow direction arrow on the valve body before installation.
Ensure pipeline cleanliness by flushing debris before connecting the valve.
Install the valve in a vertical upright position for optimal performance.
For heavy valves, use lifting tools to avoid structural damage.
Do not exceed the pressure and temperature limits specified in the technical datasheet.
Operate the handwheel slowly to prevent water hammer and stem damage.
Avoid excessive torque during closing to protect the seat and sealing surfaces.
Check for leakage at the bonnet joint and pressure seal chamber during startup.
Always depressurize and cool down the pipeline before maintenance.
Use protective gloves and eyewear when working with high-temperature media.
Ensure all fasteners are tightened uniformly during reassembly.

The Pressure Seal Globe Valve consists of carefully engineered parts to ensure reliability under high stress.
| Part Name | Material Options | Function |
|---|---|---|
| Body | Forged Steel / Cast Steel | Main pressure boundary |
| Bonnet (Pressure Seal Type) | Alloy Steel / Stainless Steel | Maintains pressure seal integrity |
| Stem | Stainless Steel / Alloy Steel | Transmits handwheel motion to disc |
| Disc (Plug) | Hard-Faced Steel / Stainless Steel | Controls fluid flow |
| Seat Ring | Renewable, Hard-Faced | Provides sealing surface |
| Packing | Graphite / PTFE | Prevents stem leakage |
| Gasket | Pressure Seal Ring | Ensures bonnet-body sealing |
| Handwheel | Ductile Iron / Steel | Manual operation |
| Fasteners | High-Tensile Alloy Steel | Secures bonnet and body |
Each component is designed for longevity, tight sealing, and easy replacement during overhauls.
To guarantee long service life and safe operation, the following maintenance practices are recommended:
Inspect valve exterior for leakage or corrosion monthly.
Check the bonnet pressure seal for signs of wear.
Operate the valve periodically to prevent stem seizing.
Apply stem thread lubricant every 3–6 months depending on service frequency.
Ensure the handwheel rotates smoothly with minimal resistance.
Inspect the seat and disc sealing surfaces annually.
Regrind or replace parts if erosion, pitting, or wear is observed.
Maintain correct disc-to-seat alignment during reassembly.
Monitor the seal ring compression during high-pressure operation.
Replace the pressure seal ring when signs of leakage or deformation appear.
Store valves in a dry, ventilated warehouse.
Apply anti-rust coating on machined surfaces before storage.
Keep end connections covered with protective caps.
| Feature | Benefit |
|---|---|
| Pressure Seal Bonnet | Superior sealing at high pressures |
| Wheel Drive Operation | Easy and safe manual control |
| High-Strength Steel Body | Withstands extreme pressure and temperature |
| Renewable Seat Design | Simplifies maintenance and repair |
| International Standard Compliance | Ensures quality and reliability |
The Pressure Seal Valve Cover Wheel Drive Steel Globe Valve is engineered to meet the demands of high-pressure, high-temperature pipeline systems. Its pressure seal bonnet design provides superior sealing compared to conventional bolted bonnets, while the wheel drive mechanism ensures ease of operation and precise flow regulation.
By adhering to proper usage precautions, component care, and scheduled maintenance, industries such as power generation, oil & gas, petrochemical, and water treatment can maximize valve reliability, extend service life, and reduce operational downtime.
With its robust technical parameters, reliable component design, and strict maintenance protocols, the pressure seal steel globe valve remains a trusted choice for critical fluid control applications worldwide.
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