Pipe Fitting Set Push In Bulkhead Fitting Plastic Thread Protector Rubber Gasket Gas Pipe Fitting

Pipe Fitting Set Push-In Bulkhead Fitting Plastic Thread Protector Rubber Gasket Gas Pipe Fitting

Product Overview
This complete brass adapter fitting kit is a necessary pipeline conversion spare part for tankless gas and electric instant water heaters. Each set contains two solid brass female thread adapters, high-temperature rubber sealing gaskets and adjustable flow restrictors. The brass connectors act as a transition joint between the water heater and household water pipes, while the green flow limit inserts control inlet water flow to stabilize outlet water temperature. The matched rubber washers form tight sealing to stop water leakage at thread connections. Anti-corrosion brass material fits long-term hot water circulation environment, ideal for equipment maintenance and pipeline refitting.

Main Advantages
Heavy-Duty Brass Adapters
Pure copper integrated casting effectively resist rust and scale corrosion caused by hot water, far more durable than plastic or iron connectors.

Adjustable Water Flow Function
Install the green flow restrictor to reduce incoming water volume when water pressure is too high, avoid low outlet temperature; remove the restrictor for larger water flow output.

Zero Leakage Sealing System
High elasticity black rubber gaskets fill gaps between threads, prevent dripping water from pipe joints even under long-time hot water circulation.

Universal Compatibility
Standard G1/2 female thread perfectly fits the inlet and outlet ports of mainstream instant water heaters, direct replacement without thread modification.

All-in-One Pack Convenience
All required installation accessories are included in one package, convenient for after-sales maintenance merchants and household self-repair.

Installation Tips
Place the rubber gasket inside the brass adapter before screwing onto the water heater port.

Insert the green flow restrictor into the inner cavity of the brass fitting if you need to limit water flow.

Tighten the connector by hand moderately; do not over-tighten to avoid thread cracking.

Check joint leakage after installation by opening the water tap fully.

FAQ:
Why does the pipe fitting set leak water?
Answer: Damaged sealing washer, improper installation, loose connection, cracked pipe fitting, or mismatched thread specifications.

What is a Push-in Bulkhead Fitting for water heaters?
Answer: It is a special pipe fitting for water heaters, used to pass water pipes through the water heater case or partition, with a push-in design for quick installation, ensuring tight connection and no water leakage.

Why does the Push-in Bulkhead Fitting leak after installation?
Answer: The pipe is not pushed in place, the sealing ring is damaged or missing, the bulkhead hole size is mismatched, or the fitting is not fixed tightly.

What is a Plastic Thread Protector/Pipe Plug Cover for water heaters?
Answer: It is a plastic protective part for water heater pipe threads, used to cover the unused pipe interfaces or thread ends, preventing dust, debris, and moisture from entering and damaging the threads.

Why does the Rubber Gasket Gas Pipe Fitting leak gas?
Answer: The rubber gasket is aged, damaged or missing, the fitting is not tightened, the gasket is misaligned, or the pipe interface is dirty.

About Taiming
Zhongshan Taiming Appliance Technology Co., Ltd. was founded in 2015, specializing in kitchen appliances and household gas instantaneous water heaters. With product innovation and honest operation as our strategic core, we have steadily grown into a professional OEM manufacturer of gas and electric water heaters.
In 2021, Taiming relocated to Huangpu Town and integrated resources to establish Taiming Industrial Park, marking a new stage of development. By 2024, we built an intelligent production management system to realize digital control over the entire gas water heater production process. In 2025, to further drive our global expansion, we established Shuangmei Electrical Co., Ltd., a dedicated subsidiary independently managing our proprietary foreign trade operations, enabling faster response and dedicated service for international partners.

Driven by a globalization strategy, Taiming has established a multi-channel, multi-level marketing system. Relying on outstanding product quality and a professional service team, we have successfully attracted the attention of a large number of overseas customers. To date, Taiming has received more than 6,000 overseas merchant visits, and our products sell well in over 120 countries and regions across five continents—including North America, Australia, Central Asia, the Middle East, and Africa—building a strong brand image in international markets.

With a high-quality supply chain, professional R&D team, stylish and intelligent products, and complete production and inspection equipment, Taiming Technology has provided superior services to consumers across multiple countries and regions, winning recognition and trust from many renowned brands.

Corporate Core Values: Product innovation, honest operation, forge ahead, unity and efficiency
Corporate Vision: Build a leading global manufacturer of water heaters
Business Philosophy: Integrity, law-abiding, technology leading, customer first
Strategic Positioning: Diversified transformation and upgrading, becoming better and stronger

Production Process

1. Four automated production lines - The production capacity of a single production line can reach up to 10,000 units per month. During the peak season of orders in autumn and winter, the monthly output of gas water heaters can reach as high as 40,000 units. If you plan to make a purchase, we suggest that you contact us as early as possible to avoid the long delivery period during the autumn and winter seasons.

2. Fully Automatic Shrink-Wrap Packaging – Moisture-Proof & Rust-Proof for Worry-Free Ocean Shipping
Before cartoning, every unit is processed through a fully automatic heat-shrink film wrapper. This tight, transparent layer acts as armor, effectively isolating each machine from high-salinity sea fog corrosion, warehouse dust, and minor handling scratches. No matter how long the sea voyage, every unit arrives at your warehouse looking factory-fresh, significantly reducing end-user return and exchange rates.
3. Fully Automatic Strapping – Eliminating “Collapsed Cartons” & Reducing Damage to Near Zero
We employ fully automatic cross/H‑type strapping machines to reinforce every carton with high-tension bundling. The powerful compression integrates each carton securely with the pallet, thoroughly eliminating carton deformation, bursting, and collapsing caused by rough seas and stacking pressure during transit. Our commitment: any shipping damage caused by insufficient packaging is fully covered by us.

4. Experimental And Testing Equipment
① Fan Life Test Bench, Air Pressure Switch Life Test Bench, Gas Proportional Valve Life Test Bench, Display Screen Life Test Bench
When customizing samples for customers and producing large quantities of products, we will conduct lifespan tests on the core components of the gas water heaters to ensure the safety and stability of these components. For components such as fans, pressure switches, gas proportion valves, and display screens, we will perform performance and safety tests for each gas water heater for customers according to strict testing standards.
② Gas Water Heater Comprehensive Performance Test Bench
Installed at the end of every production line, this test bench performs 100% full inspection on every single finished unit before shipment. It automatically conducts airtightness testing (ensuring zero gas or water leakage) and verifies all safety protection functions – including dry‑burn prevention, flame‑failure shutdown, and tip‑over protection – to confirm they respond correctly. Any unit failing any criterion is instantly rejected and never reaches the market. This final quality gate guarantees that every water heater you receive is fully functional and defect‑free.
③ Gas Water Heater Comprehensive Performance Sub-Test Bench
After the main test bench completes 100% full inspection, this sub-test bench performs a secondary auxiliary check on production units, focusing specifically on water pressure stability – simulating household water pressure fluctuations to verify consistent temperature performance and component sealing under varying pressures. This " re-verification gate " effectively filters out potential issues caused by sudden pressure changes, ensuring every shipped unit has a stable and reliable water circuit. Double inspection, double peace of mind.
④ Electrical Safety Comprehensive Test Bench
After passing performance and sealing inspections, every water heater must undergo 100% electrical safety testing on this bench. The system automatically checks grounding continuity to ensure a reliable connection between the metal casing and the earth wire, eliminating shock hazards; it also conducts high-voltage dielectric strength testing (hipot test) to verify that insulation between live parts and the casing meets standards. Any failure triggers an immediate alarm and lockout, preventing defective units from leaving the factory. This final “ electrical safety insurance ” gives your end users peace of mind and you total confidence in every shipment.
⑤ Precision Salt Spray Test Chamber
During the new sample development phase, we place complete water heaters into our precision salt spray chamber to simulate extreme marine environments with high salinity, high temperature, and high humidity through continuous atomized spray testing. Every metal component – including the back shell, burner, heat exchanger, and pipe fittings – must withstand over 72 hours of exposure without red rust, corrosion, or coating peeling. This “ accelerated aging test ” guarantees that your custom samples remain corrosion-resistant and perform like new, whether destined for coastal cities or island nations.
⑥ Programmable Temperature & Humidity Test Chamber
During the new sample validation phase, we place complete units into our programmable temperature and humidity chamber to simulate extreme climate combinations – including high‑temperature/high‑humidity, low‑temperature/low‑humidity, and rapid thermal cycling – to comprehensively evaluate ignition stability, combustion efficiency, electrical insulation performance, and sealing material weather resistance. Through multiple programmable temperature‑humidity cycling tests, we ensure that your custom samples maintain stable performance no matter whether destined for tropical rainforests, frigid regions, or desert areas with extreme day‑night temperature swings.
⑦ Finished Gas Water Heater Comprehensive Performance Testing Equipment
During new sample validation and batch random inspection of mass production, we use our finished product comprehensive performance testing equipment to conduct energy efficiency coefficient testing (thermal efficiency, flue gas temperature, etc.) and a full scan of all safety indicators – comparing every parameter against national standards (GB 6932) and destination-specific certification requirements (such as CE, CSA, AGA, etc.). The system automatically determines whether each unit meets every criterion, ensuring your products not only deliver excellent performance but also clear customs smoothly and enter the market in full compliance, eliminating risks of returns or penalties due to non-compliance.
⑧ Gas Water Heater Service Life Test Bench
During new sample validation and batch random inspection of mass production, we place complete units onto our service life test bench to conduct 10,000 complete start-stop durability cycles, strictly in accordance with national standards (GB 6932) – simulating daily user on/off operations to verify performance degradation and reliability of ignition, combustion, heat exchange, flame-failure protection, and all other systems after long-term repeated use. Every new sample unit must pass this test, and mass production batches are regularly spot-tested. 10,000 start-stop cycles equate to over 10 years of normal household usage – proving your products can stand the test of time.
⑨ Gas Dedicated Analyzer
Gas is the " fuel " for water heaters, and composition fluctuations directly affect combustion efficiency and safety. We are equipped with a gas dedicated analyzer to conduct precise composition testing on every incoming gas batch – including calorific value, Wobbe index, combustion potential, methane content, and other critical parameters. This ensures that the test gas used on our production line perfectly matches the gas supply in your target market, preventing issues such as incomplete combustion, yellow flame, and deflagration caused by gas incompatibility. Every test report is fully traceable, providing reliable data support for your product compliance certification.
⑩ Single-Arm Drop Tester
Packaging is the " last armor " before products go global. Our single-arm drop tester simulates accidental drops during handling, loading, and transit by subjecting fully packed water heater cartons to free-fall impact tests. Testing is strictly conducted according to the packaging standards you specify – whether it's Amazon A1~A6 certification standards or international protocols such as ISTA, ASTM, and ISO – all can be precisely accommodated. Every custom packaging solution must pass rigorous drop tests before mass production, ensuring your containers arrive at overseas warehouses with zero damage upon unboxing.
⑪ Simulated Transport Vibration Test Table
Sustained vibration during long-distance transport is the " invisible killer " that can loosen internal components and compromise product integrity. Our simulated transport vibration test table conducts fixed-frequency and sweep-frequency vibration tests on fully packed water heater cartons, replicating 3D vibration environments encountered in trucks, container ships, and aircraft cargo holds. Every custom packaging solution and internal cushioning structure must pass vibration testing before approval, ensuring that after thousands of kilometers of cross-border shipping, every unit arrives at your warehouse with all components firmly secured, electrical connections intact, and performance " as good as new ".