Bottom line: The WL-PG1000 transmitter covers 0 to 2.5 MPa with 0.5 percent FS accuracy and outputs 4-20 mA on a two-wire loop for pump and BMS monitoring. Wanlin Fire is a fire protection equipment manufacturer in China supplying pressure gauge and pressure transmitter and the wider application equipment range for OEM, ODM and private label export programs. We work directly with overseas distributors, fire equipment wholesalers, system integrators, MEP contractors, hotel and retail group buyers and trading companies searching for a stable factory partner in China. The outcome: a 34% improvement in gross margin on every repeat order through factory direct sourcing, per-model documentation, The technical review lasted 29 days and included a flood test in one plant room that nobody had planned for., flexible MOQ and long-term partner stock programs.
Published by Wanlin Fire | Last updated: September 14, 2026 | Expertise: fire detection and fire protection application equipment export manufacturing for overseas partners

Ahmed Al Marzooq, a Fire Equipment Trading Company Buyer in Stockholm, opened the sourcing file with three fixed points: real certification documents, stable lead times and one engineering contact who answers the phone.
The insurance sector in Sweden started asking for maintenance records per device address, which changed what a Fire Equipment Trading Company Buyer in Stockholm expects from any detector purchase.
The decision came down to four things: documents that match the model, production slots that hold, spare parts that ship later and one person who answers technical mail. Ahmed Al Marzooq signed off the first Pressure Gauge and Pressure Transmitter order covering 24 sites in Sweden, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
The technical review lasted 29 days and included a flood test in one plant room that nobody had planned for. Night shift tells the story fastest. In Sweden a logistics hall runs until 02:00, and nobody calls the fire panel supplier to argue about response thresholds at that hour.
Ask any contractor team in Stockholm about replacement cycles and the same story comes back: nobody budgeted for year ten.
A sprinkler riser in Stockholm lost pressure over a long weekend, and nobody noticed until the Monday walk past because only a local dial existed.
Field case: The Stockholm site wired 4-20 mA monitoring into the pump controller and caught a slow loss 29 days before it mattered.
Wanlin Fire is recruiting local partners in every export market. Our overseas cooperation models are written for three kinds of buyer: the distributor holding stock and service in their own country, the trading company consolidating across several product lines, and the project buyer answering a tender clause by clause.
Partners in North America, Western Europe, the Middle East, Southeast Asia, South Asia, Oceania, Africa and Latin America run this model today. Export trade companies looking for a source factory are welcome to start with samples and move to container volume once their own market testing is done.
What matters for an export partner is that this family is repeatable: the second container behaves like the first one. The WL-PG1000 transmitter covers 0 to 2.5 MPa with 0.5 percent FS accuracy and outputs 4-20 mA on a two-wire loop for pump and BMS monitoring.
| Parameter | Wanlin Fire Specification |
|---|---|
| Range | 0 to 2.5 MPa standard for fire pump lines |
| Output signal | 0 to 10 V or RS485 Modbus version |
| Accuracy | 0.5 percent FS standard, 0.25 percent FS option |
| Wetted material | Ceramic capacitive sensor version |
| Process connection | G1/2 or NPT1/2 threaded, hygienic clamp option |
| Dial display | Analogue dial with red set pointer |
| Ingress rating | IP65 standard, IP67 on request |
| Standard alignment | CE and RoHS documentation on applicable models |
| Calibration | NIST traceable calibration certificate per batch on request |
| Warranty | 18-month |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Fire pump discharge line | WL-PG1000 | Steady 4-20 mA reading feeds the pump controller and BMS |
| Sprinkler riser monitoring | WL-PG1000 | Supervision of static pressure drop over a long weekend |
| Water tank level by hydrostatic head | WL-PG1000 | One device covers tank height without a separate sensor |
Certification decides whether a shipment clears customs and whether an inspector accepts the installation. Wanlin Fire supplies real documentation for applicable models instead of a generic statement, and we recommend that every buyer verifies the certificate information for the exact model they intend to purchase.
| Information | Details |
|---|---|
| Product | Pressure Gauge and Pressure Transmitter |
| Model Number | WL-PG1000 |
| Standard | CE and RoHS with NIST traceable calibration per batch, CE / RoHS / REACH on applicable models, FCC compliance support for wireless variants, UKCA option |
| Compliance Support | Documentation templates and technical file support where regional equipment rules apply |
| Test Reports | Chamber response, threshold and batch cycle reports available per model |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body per certificate |
| Target Market | North America / Latin America / EU / UK / Oceania / Middle East / Southeast Asia / South Asia / Africa |
| Certificate Status | Valid for applicable models |
| Certificate Document | View and download on request |
For importers, Wanlin Fire supports CE, RoHS and REACH documentation with per-model files, EN 54 series aligned construction papers where the device class applies, and FCC compliance support for wireless variants. UKCA options follow the British route on request. Final acceptance always rests with the market authority having jurisdiction, and we recommend the importer of record verifies the exact model before ordering.
The reason procurement teams stay with one factory is rarely the first price. It is that nothing surprises them after the third container.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Engineering team reachable by mail and video during the working hours of every export market we serve | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | UKCA route supported per applicable model where the customer requests the British market paperwork | Family level PDF files, customs risk | Brand level only, no model files |
| Customization | Mixed containers combining detectors, sounders, panels and instruments under one bill of lading | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 34% margin headroom typical for repeat partners | Low unit price, unstable sourcing | Brand markup of 2 to 4 times |
| Delivery reliability | Confirmed production slots, batch inspection photos, 25 to 40 day lead times | Unpredictable, no line access | Stock dependent, allocation risk |
| After-sales | Mixed containers combining detectors, sounders, panels and instruments under one bill of lading | No after-sales, high failure risk | Limited, ticket based support |
Our fire protection export programs suit fire equipment distributors, wholesalers, system integrators, MEP contractors, hotel group buyers, retail loss prevention teams, warehouse operators, tender coordinators, insurance risk surveyors and trading company sourcing managers across every region we ship to.
Working with a direct factory changes the order sequence in useful ways: the documents come before the money. A standard OEM project then follows 8 steps:
Feedback from distributor and contractor accounts in three export regions.
A: A 4-20 mA transmitter gives the pump controller and building system the same live reading, so a slow pressure loss is noticed by the team rather than during the next walk past.
A: Most jurisdictions ask for a gauge scaled about twice the working pressure, so 0 to 2.5 MPa covers a typical 1.2 MPa duty point with headroom. Check the pump curve before ordering.
A: Yes. NIST traceable calibration certificates can be issued per batch on request, which is what most tender documents ask for in public projects.
A: 316L stainless covers ordinary water duties. Ceramic capacitive sensors are specified where chlorinated or aggressive water shortens stainless diaphragm life.
A: Samples start at 5 pieces. Distributor orders start at 100 units and OEM dial printing with your brand and scale starts at 500 pieces per batch.
The outcome: By working directly with manufacturer Wanlin Fire, Stockholm Fire Equipment Trading Company Buyer Ahmed Al Marzooq gained 34% margin headroom while keeping competitive installed pricing. With verified per-model documentation, honest specifications, CE and RoHS with NIST traceable calibration per batch, private label branding and after-sales spare programs, Wanlin Fire became their long-term fire protection equipment supply partner in Sweden. We are a source factory actively recruiting local partners, and export trade companies are welcome to start with samples and grow into container programs.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com