Tianjin valve manufacturing with a particular focus on butterfly-valve configurations and components. ZFA's range combines wafer, lug and flanged designs with gate and check valves, plus manual and sourced powered actuation options.
What the published manufacturing scope means for a buyer.
ZFA is the brand presented by Tianjin Zhongfa Valve Co., Ltd., whose website dates the business to 2006 and locates its factory in Jinnan, Tianjin. Its catalogue is organized around valve connection, seat construction and operating arrangement rather than a single universal valve. The useful procurement distinction is between a complete tested valve, components for assembly, and a valve-actuator package: these require different drawings, acceptance records and supply boundaries. [1] [2]
The 2026 catalogue distinguishes soft replaceable, hard-backed and vulcanized-seat butterfly-valve designs, alongside split-body, double-offset and triple-offset families. This gives a buyer specific alternatives to compare for maintenance access, pipeline fit and the intended service, instead of choosing only by nominal diameter. [9]
ZFA offers butterfly-valve bodies, discs, seats and handles. Its parts page distinguishes its own handle production from worm gears and electric or pneumatic actuators obtained through partners. Buyers can therefore request a component quotation or an assembled package with the responsibilities clearly separated. [3]
The published quality workflow connects incoming casting and seat checks to stem-hole alignment, assembly, operating torque and pressure testing. These are useful points to turn into a project inspection plan, particularly when the valve and actuator are supplied together. [5]
CNFX synthesis of the company’s published information.
Start with the valve construction and service conditions, then select the connection and operating package.
The catalogue includes ZW wafer, ZLT lug and ZF flanged families, with different seat and body constructions. For example, ZF-01 is described as replaceable-seat and ZF-02 as vulcanized-seat. The drawing, seat arrangement and specified pressure/temperature combination should identify the ordered version; a catalogue-wide maximum is not a rating for every model. [9]
The ZFAW-Q02 product page presents a pneumatic PTFE-seat/PFA-disc configuration. For a chemical-service request, specify the medium and concentration, operating and cleaning temperatures, pressure differential, wetted materials and required fail position. The complete assembly needs a project-specific material and actuator selection, not approval based on a lining name alone. [8]
The published range includes non-rising-stem and outside-screw-and-yoke designs, resilient-seat versions and metal-seat configurations. Installation height, stem travel, face-to-face dimensions and the agreed flange standard distinguish the alternatives for an actual pipeline. [6]
ZFA lists dual-plate wafer products in several body materials; the catalogue also contains wafer and flanged check-valve families. Match the connection, installation orientation and operating duty to the selected drawing and test requirements. [7]
Bodies, discs, seats and manual handles are offered separately. Provide the mating dimensions, shaft interface, seat retention and material specification when ordering parts; the same nominal size does not establish interchangeability between designs. [3]
Published processes, organized by production stage.
Select the family, connection, seat and disc construction, operating method and drawing revision. The catalogue supplies dimensional tables and separate operating-torque and flow-coefficient guidance as starting references. [9]
The manufacturing page describes incoming castings, bars and other materials. The quality article explicitly identifies replaceable and hard-backed seats as supplier-produced, followed by incoming checks; the scope should not be read as an entirely captive foundry and elastomer operation. [5]
Published operations include machining body and stem interfaces, drilling flange features, surface treatment and assembly. The supplier describes checks on disc position, stem installation and fastener tightening before functional testing. [4]
Agree shell and seat tests, operating-torque requirements, nameplate information and document traceability. For a powered valve, include the actuator make, supply conditions, control interface and fail-action test in the release package. [5]
Keep the test plan, certificate schedule and actual valve configuration together.
ZFA describes shell, closure and operating-torque testing, referring to API 598, EN 12266-1 and ISO 5208. The purchase order should identify the applicable standard and edition, test medium, duration, acceptance criteria and required records for the selected valve rather than combining every website test claim. [5]
The company publishes an LRQA Module H document issued in June 2026 for Tianjin Zhongfa Valve, with a stated expiry of 20 July 2029. Its attached schedule lists butterfly valves up to DN1200 at PN16 and gate/check valves up to DN600 at PN16, with specified media and temperatures. Those limits are narrower than the overall catalogue and should be matched to the order. [10]
For drinking-water or other approval-dependent projects, request the current listing and covered model, material and site with the quotation. The downloadable archive includes older certificates; a certificate logo alone does not identify the approval of the selected valve. [11]
These are procurement uses supported by the published range, not claims of independently verified project outcomes.
The combination of butterfly, gate and check valves can support a multi-item valve schedule. Compare connection dimensions, seat compounds, maintenance access and required water-contact documents across the schedule rather than treating one approval as covering every item. [9]
Separate bodies, discs, seats and handles offer a component-supply route. Matching drawings and sample approval are particularly important when the buyer will assemble the finished valve or combine it with an existing actuator. [3]
The PTFE/PFA product page provides a concrete starting configuration for a process-fluid enquiry. Submit the full duty and cleaning conditions so the supplier can specify the complete wetted-material system and operating package. [8]
CNFX procurement assessment.
ZFA's documented scope is most useful to buyers comparing butterfly-valve constructions, assembling a valve schedule or sourcing matched valve parts. Its machining, assembly and test descriptions provide a basis for an inspection discussion, while the catalogue provides family-specific drawings. Separate the valve manufacturer's work from purchased seats and powered actuators, and define the exact model and supporting document package before comparing prices.
No. The catalogue describes multiple families, while the published PED schedule gives its own size, pressure, temperature and media limits. Match the actual order to the applicable document schedule.
The parts page describes partner-sourced electric and pneumatic actuators and worm gears. Its quality article states that replaceable and hard-backed seats are supplied by partners. Include those components and their makers in the agreed assembly specification.
Website research · 2026-10-01
Prepared from ZFA Valve’s English website. Capability descriptions and application information are company-published; CNFX’s project-fit assessment is editorial analysis. Company claimed indicates profile management, not quality certification. Source methodology.
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