PDF-documented product
Pneumatic Cryogenic Control Valve
The Lianggong product catalog identifies this item as Pneumatic Cryogenic Control Valve on PDF page 101. The page separates catalog-proven attributes from the project data that still requires technical confirmation.
- Valve type: Control Valve
- Actuation: Pneumatic
- Service / medium: Cryogenic / low-temperature
Product identity
What this catalog record owns
This page represents one documented catalog identity. It does not replace the parent product category and it does not claim an unverified model, rating or project history.
Product family
Control Valve. This is the parent commercial route for category-level selection.
Catalog series
Control Valve. This is the source-series context printed in the recovered product catalog.
Evidence source
Recovered Lianggong English product catalog, PDF page 101; mapped product image AST-R1-0347.
Catalog evidence
Catalog-documented product data
Only fields stated by the PDF catalog label are shown as product data. A descriptive term such as high pressure, large diameter or ASME does not create a numeric rating, orderable range or certification claim.
| Field | Catalog-documented value | Evidence status |
|---|---|---|
| Valve type | Control Valve | VERIFIED — PDF catalog label |
| Actuation | Pneumatic | VERIFIED — PDF catalog label |
| Service / medium | Cryogenic / low-temperature | VERIFIED — PDF catalog label |
| Catalog source series | Control Valve | VERIFIED — PDF catalog section |
| Catalog source page | PDF page 101 | VERIFIED — recovered PDF mapping |
Important: values not shown in this table are intentionally unconfirmed. They must be resolved on the offered datasheet and approved order drawing.
Evidence boundary
Known facts and open configuration fields
The PDF proves the product label and mapped appearance. It does not by itself prove a complete bill of materials, operating envelope or order-ready model.
Confirmed by the catalog
- Valve type: Control Valve The PDF label identifies the valve type; it does not define the full configuration.
- Actuation: Pneumatic The actuation route is named; sizing, power supply, accessories and control logic require confirmation.
- Service / medium: Cryogenic / low-temperature The service context appears in the product label; compatibility still depends on composition, pressure and temperature.
Confirm before quotation
- Design / construction: confirm for the exact offered configuration
- Material descriptor: confirm for the exact offered configuration
- Pressure descriptor: confirm for the exact offered configuration
- Size descriptor: confirm for the exact offered configuration
- Standard descriptor: confirm for the exact offered configuration
- Connection: confirm for the exact offered configuration
- Industry context: confirm for the exact offered configuration
- Temperature range and pressure-temperature limits
- Body/trim/seat details and material grades
- Testing, dimensions, certificates, price and lead time
Engineering review
How to specify the Pneumatic Cryogenic Control Valve
A usable inquiry connects the catalog identity to the real duty. The following inputs determine whether the offered configuration can be selected and documented safely.
Control duty
Provide normal, minimum and maximum flow, upstream/downstream pressure, temperature, control objective and permitted leakage or shutoff requirement.
Operating envelope
Provide nominal size, pressure class, operating/design pressure, minimum/maximum temperature and any transient or vacuum cases.
Materials and connection
Provide body, trim, seat/seal and wetted-parts requirements based on the actual fluid, temperature and corrosion/erosion conditions. Confirm end type, dimensional standard and mating interface.
Pneumatic package data
Confirm air pressure, fail position, actuator action, solenoid voltage, limit switches, positioner and required accessories.
Inspection and documents
List drawing, datasheet, material certificate, pressure/leakage test, inspection, marking and third-party witness requirements for the offered configuration.
Application boundary
Match the catalog identity to the real service
Product names are useful starting points, but final suitability depends on the complete operating case and the exact configuration offered for review.
Catalog service wording
The PDF label includes Cryogenic / low-temperature. Confirm actual fluid composition, concentration, contaminants and temperature before material selection.
Industry and system
Identify the plant, equipment and piping function. Industry naming alone is not enough to determine valve design or materials.
Installation boundary
Confirm orientation, flow direction, piping loads, available space, access, ambient conditions, maintenance method and mating interfaces.
Visual evidence
Mapped product images from the catalog
These images support product identity and appearance only. They do not establish dimensions, material grade, pressure rating, certification or the final supplied configuration.
Related product routes
Compare documented alternatives before RFQ
Use the parent category for commercial selection and these related catalog records for identity-level comparison. No page inherits specifications from another product.
Pneumatic Forged Steel Control Valve
Another PDF-documented Control Valve catalog record. Review its own evidence and configuration boundary.
Electric Control Valve
Another PDF-documented Control Valve catalog record. Review its own evidence and configuration boundary.
Electric High Temperature Control Valve
Another PDF-documented Control Valve catalog record. Review its own evidence and configuration boundary.
Buyer questions
Pneumatic Cryogenic Control Valve FAQ
These answers preserve the line between documented catalog evidence and project-specific selection.
What does the PDF catalog confirm for this product?
It confirms the product name Pneumatic Cryogenic Control Valve, its source series Control Valve, the mapped product image and the catalog-label fields shown in the data table.
Which data still requires confirmation?
The open fields include Design / construction, Material descriptor, Pressure descriptor, Size descriptor, Standard descriptor, Connection. Temperature, detailed materials, testing, dimensions, certification, price and lead time also require the offered product documents.
Can the catalog image be used as a final dimensional reference?
No. The image confirms catalog identity and appearance context only. Fabrication, installation and procurement must use the approved datasheet and order drawing.
What should be included in the RFQ?
Send the required valve function, medium, size, pressure, temperature, connection, materials, actuation, quantity, document list and applicable inspection or witness requirements.
Technical inquiry
Request a configuration review for Pneumatic Cryogenic Control Valve
Reference this catalog identity and send the operating data below. Lianggong can then confirm the offered configuration, documentation scope and commercial terms without turning unknown fields into assumptions.
- Valve function and service medium
- DN/NPS, PN/Class, operating and design temperature
- Connection, body/trim/seat materials and corrosion allowance
- Actuation, fail position, utilities and control signal
- Quantity, drawing, testing, inspection and certificate requirements