The Sleeved Plug Valve with UB6 Body is a sleeve-type soft sealing plug valve for fluid isolation in process systems handling water, steam, gas, oil and corrosive media. It combines a UB6 valve body with PTFE, RPTFE or PPL sleeve options.
Technical Specifications
|
Parameter |
Specification |
|
Pressure Rating |
Class 150–900 |
|
Nominal Size |
NPS 1/2–24 |
|
Body Material |
UB6 |
|
Plug Material |
UB6 or specified material combination |
|
Sleeve |
PTFE / RPTFE / PPL |
|
Sleeve Temperature Limit |
PTFE ≤120°C / RPTFE ≤180°C / PPL ≤260°C |
|
Structural Style |
BC |
|
Operation |
Wrench wheel / worm & worm gear / pneumatic / electric |
|
Design Standards |
API 599 / API 6D |
|
Face-to-Face Dimension |
ASME B16.10 |
|
Connecting Flange |
ASME B16.5 |
|
Testing & Inspection |
API 598 / API 6D |
UB6 Body & Service Selection
UB6 Body
UB6 is specified for corrosive service where resistance to pitting and crevice corrosion is an important material consideration.
Media Selection
The valve is available for water, steam, gas, oil and corrosive media. Medium composition and operating temperature should be confirmed for service-specific selection.
Pressure Class
Class 150–900 configurations are available. Pressure class is selected according to the required operating pressure and applicable design requirements.
Design, Connections & Operation
Flange Configuration
Connecting flanges follow ASME B16.5. Flange dimensions can be matched to project requirements where required.
Operation Options
Available operating methods include wrench wheel, worm and worm gear, pneumatic actuation and electric actuation. The operating configuration is selected according to valve size, pressure class and operating requirements.

Pressure Testing & Documentation
Pressure testing covers shell and sealing tests for the selected pressure class.
|
Pressure Class |
Shell Test |
Sealing Test |
|
Class 150 |
3.0 MPa |
2.2 MPa |
|
Class 300 |
7.5 MPa |
5.5 MPa |
|
Class 600 |
15.0 MPa |
11.0 MPa |
|
Class 900 |
22.5 MPa |
16.5 MPa |
Available documentation can include:
- Material Test Certificate (MTC)
- Inspection records
- Pressure test reports
- Drawings
- Operating documents
Quality Inspection
Material Verification: Body and plug materials are checked against the specified material requirements.
Dimensional Inspection: Critical valve dimensions, face-to-face dimensions and connecting flange dimensions are checked against the applicable requirements.
Assembly Inspection: Sleeve installation, plug position and operating mechanism assembly are checked before final testing.
Final Inspection: Valve size, pressure class, sleeve material, connection configuration, operation and marking are checked against the order requirements.

FAQ
Q: What information is required for a quotation?
A: Please provide valve size, pressure class, body and plug materials, sleeve material, connection standard, operating method and applicable medium. Temperature and pressure conditions are also required for service-specific selection.
Q: Is drawing approval available before production?
A: Yes. Dimensional drawings and configuration drawings can be provided for review and approval before production when required.
Q: What is the MOQ for this valve?
A: MOQ is confirmed based on size, pressure class, material configuration and order requirements.
Q: What is the typical lead time?
A: Standard configurations typically require 4–8 weeks after order confirmation. Special materials or customized configurations may require additional time.
Q: Can different sizes be combined in one order?
A: Yes. Mixed-size orders can be arranged subject to quantity and production planning.
Q: Can you provide OEM or private-label supply?
A: Yes. OEM supply and customer-specific product identification can be arranged for qualified orders.
Q: Are replacement sleeves and spare parts available?
A: Yes. Replacement sleeves and applicable service parts can be supplied according to the valve configuration.
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