What this catalogue item identifies
This is a flanged globe valve listed with a Class 150 designation. The stem moves the closure member toward or away from the seat to change the flow opening. Confirm the offered body material, trim, packing and operating mechanism rather than assuming every catalogue option is supplied.
Isolation and throttling are different duties
Specify whether the valve is for shut-off, occasional throttling or continuous control. Throttling suitability depends on trim, differential pressure, fluid and operating conditions; the valve name does not guarantee a flow characteristic or control accuracy. Review pressure loss and any cavitation, flashing or noise concern for the actual service.
Match the actual interface
Check size, flange standard, facing, bolt pattern, face-to-face length and opening clearance. Obtain the permitted flow direction from the supplied drawing or body marking. Class 150 is a designation; verify the material-dependent pressure-temperature rating instead of treating it as a fixed pressure or a PN conversion. Do not combine ASME, JIS and welding-end specifications into one assumed configuration.
Frequently asked questions
Is this automatically suitable for continuous flow control?
No. Describe the control duty and operating conditions, then confirm the appropriate trim and actuator. A shut-off catalogue entry is not a control-valve sizing result.
Which flow direction should I use?
Follow the supplied valve marking, drawing and instructions for the actual configuration. Confirm the direction before replacing an existing installation.
Can the available Class 300 drawing be used for this Class 150 valve?
Not without a verified match. The pressure designation, dimensions and actual ordered construction must correspond to the supplied drawing.
General technical references—not product certificates: ASME valve rating scope · ASME flange interface and rating scope
Prepare a quotation for this valve
For a flanged globe-valve purchase, distinguish shut-off requirements from a continuous throttling duty.
- Duty
Fluid, operating and design pressure/temperature, flow and differential pressure where throttling is required.
- Fit
Size, flange facing and bolt pattern, face-to-face length, flow direction and opening clearance.
- Materials and operation
Required body/trim/packing materials, operator arrangement and leakage acceptance criteria.
Documents to agree before supply
- Configuration-specific Class 150 dimensioned drawing
- Offered material and pressure-temperature schedule
- Agreed inspection, operating and maintenance documents
Ask which documents are available for the offered configuration and agree their scope before supply. A catalogue picture is not a certified drawing or test report.
Download a buyer enquiry checklist
Download this valve enquiry checklist (TXT). This is a fill-in purchasing worksheet, not a technical datasheet. Unknown values can be left blank.
Send an enquiry for this valve · cross-standard valve replacement checklist · Engineering selection and technical Q&A
