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PFA Valves
Product Overview
Liquid handling valves for chemicals and ultrapure water
Yozonetech supplies PFA valve configurations for liquid handling in chemical and ultrapure-water equipment. Select the valve function, manual or pneumatic operation, connection interface and temperature version together with the process conditions.
Request a quote: ptfetube@yozonetech.cn
Complete Technical Specifications
| Parameter | Reference specification |
| Intended fluid | Chemicals and ultrapure water; liquid service only |
| Working pressure | 0-0.5 MPa |
| Pneumatic diaphragm actuator control pressure | 0.35-0.5 MPa |
| Back pressure | 0-0.3 MPa |
| Standard temperature version | 0-100°C |
| High temperature version | 5-160°C |
| Ultra high temperature version | 5-200°C |
| Body material | PFA |
| Nut material | PFA |
| Base and actuator materials | PVDF / PEEK |
| Diaphragm material | PTFE |
The three temperature ranges identify different versions, rather than a combined operating range for every valve. Working pressure, actuator control pressure and back pressure describe different conditions. Confirm their permissible combination for the selected valve and temperature.
Valve Configurations
| Listed valve types |
| Manual diaphragm valve |
| Pneumatic diaphragm valve |
| Pneumatic flow-control diaphragm valve |
| Needle valve |
| Plug valve |
| Suck-back valve |
| Other configurations |
Names above follow the Chinese descriptions. Some English labels in the reference classify the same entries differently. Confirm the required control function and valve construction when selecting a product.
Installation and Service Requirements
These valve references are for liquids only. Do not use the process flow path for gases such as nitrogen or air. Pneumatic actuator control air is a separate circuit and does not make the liquid valve suitable for process-gas service.
Check the chemical medium and compatibility with the body, nut, diaphragm and other wetted parts before use. Material and specification changes require a new compatibility review. Support the valve and pipework to limit vibration and mechanical loading; the body material can be damaged by vibration. Check inlet and outlet direction during installation.
Applications
Review the appropriate configuration for chemical-liquid dosing, transfer and isolation, or ultrapure-water equipment. Specify flow-control or suck-back behavior where required. Cleanliness, contamination limits and documentation requirements must be agreed for the finished valve.
Custom Selection and Inspection
Provide valve type, connection dimensions, body and seal requirements, flow direction, operating mode and quantity. Include medium, concentration, temperature, working pressure, back pressure and actuator control pressure. Request dimensions and the selected version’s technical data before installation.
Agree leak testing, actuation checks, dimensional inspection, cleanliness and required material documentation for the supplied valve. No dimensional size table is provided for this valve-family page; obtain the drawing for the selected configuration.
Frequently Asked Questions
Can one valve cover all three temperature ranges
Choose the specified standard, high-temperature or ultra-high-temperature version. Confirm the pressure and materials for that exact version.
Can the valve handle nitrogen or air
The listed process application is liquid-only. Pneumatic control air operates the actuator separately from the wetted liquid circuit.
What information is needed for selection
Send the function, connection size, medium, temperature, working and back pressure, actuation requirements and cleanliness specification.
Request a PFA Valve Quote
Send the required valve function, connection drawing, temperature version, pressure conditions, quantity and documentation requirements.
Email: ptfetube@yozonetech.cn
WhatsApp / Tel / WeChat: +86 13752771911
Website: www.chinaptfetube.com