Welcome to Hongmi

Our factory was founded in 2007 and covers an area of 1000 square meters. We have our own R&D, production and sales teams. Our factory mainly produces all kinds of pneumatic joints, PU air pipes, PA air pipes. At the same time, we also cooperate with other factories to produce various types of cylinders, air source treatment FRL unit, and so on. Our aim is to provide customers with high quality and low price of cost-effective products.

Welcome to Hongmi

Wenzhou Hongmi Pneumatic Co., Ltd. was founded in April of 2021, as the trading headquarter of Huiteli Pneumatic(Hydraulic) Co., Ltd. in Wenzhou, Zhejiang province, which has the production experience over 17 years. We are integrates industrial company of manufacturing and exporting, mainly specialized in various kinds of pneumatic fittings, including joints/connectors, PU hose, PA hose, air cylinders, air source treatment unit, solenoid valves/water valves, as well as the vacuum accessories used for robot industry, etc. Our products covered SMC type, Airtac type, and Festo type. Just tell us the list you need then we will offer you the right thing with competitive price.

Why Choose Us

Hardware industry leader

Has a world-class automated production equipmentand testing equipment hardware equipment in theindustry-leading level.

International quality standards

Companies to implement intemational quality stan-dards, synchronized with the times, to comply with national environmental policy.

Excellent corporate culture

Excellent leadership program: lead by example, effective communication, care for employees; Excellent staffprogram: happy together to make money, decent life.

First class quality

Has a world-class automated production equipmentand testing equipment hardware equipment in theindustry-leading leve.

Blog

Pneumatic Fitting Types Explained – Full Guide to Air Tube Connectors

Pneumatic Fitting Types Explained – Full Guide to Air Tube Connectors

Main Types of Pneumatic Fittings Type Example Function Straight Fittings PU / PC Connect tubes in a straight line Elbow Fittings PL / PV Change direction (90°) Tee Fittings PE / PY Split airflow into two directions Cross Fittings PZA Split airflow into multiple directions Bulkhead Fittings PM / PLM / PMF Pass tubes through panels Valves PA / HVSS / HVFF Control airflow Straight Pneumatic Fittings Straight fittings are used to connect two tubes or a tube to a threaded port in a straight line. Common types: PU → tube to tube PC → tube to thread Best for: Simple connections Pipeline extension Low complexity systems Elbow Pneumatic Fittings Elbow fittings allow tubing to change direction (usually 90°). Common types: PL → threaded elbow PV → tube-to-tube elbow Best for: Space-saving installations Direction change in piping Tee Pneumatic Fittings Tee fittings are used to split airflow into two branches. Common types: PE → T-type (90° branch) PY → Y-type (angled branch, smoother flow) Best for: Airflow branching Distribution systems Cross Pneumatic Fittings Cross fittings allow four-way air distribution in complex systems. Common type: PZA → 4-way connector Best for: Multi-line air distribution Complex pneumatic circuits Bulkhead Pneumatic Fittings Bulkhead...

Pneumatic Tee vs Cross Fittings – 3 Way vs 4 Way Air Connectors Explained

Pneumatic Tee vs Cross Fittings – 3 Way vs 4 Way Air Connectors Explained

Key Differences Between Tee and Cross Fittings Feature Tee Fitting (PE / PY) Cross Fitting (PZA) Structure 3-way (T or Y shape) 4-way cross Flow Direction 1 → 2 branches 1 → 3 branches Complexity Simple More complex Space Requirement Compact Requires more space Application Basic branching Multi-direction systems What is a Pneumatic Tee Fitting? A pneumatic tee fitting is a 3-way connector used to split one air line into two directions or combine two into one. There are two common types: T-type (PE) → 90° branch Y-type (PY) → angled branch for smoother airflow Tee fittings are the most commonly used connectors in pneumatic systems. What is a Pneumatic Cross Fitting? A pneumatic cross fitting is a 4-way connector that allows air to flow in multiple directions simultaneously. It is typically used in more complex pneumatic systems where multiple air lines need to be connected at a single point. Compared to tee fittings, cross fittings reduce the number of connectors required in multi-branch systems. Applications Industrial automation systems Air compressor distribution systems Robotics and assembly lines Packaging machinery Multi-line pneumatic control systems Tee fittings are ideal for simple air branching, while cross fittings are better suited for complex multi-direction...

2 Way 3 Port vs 5 Port Solenoid Valve | Pneumatic Valve Guide

2 Way 3 Port vs 5 Port Solenoid Valve | Pneumatic Valve Guide

What is 2 Way 3 Port and 5 Port Solenoid Valve? A 2 way 3 port solenoid valve (2/3 valve) has two positions and three ports, typically used to control single-acting cylinders or simple ON/OFF air flow. A 5 port solenoid valve (5/2 or 5/3 valve) has five ports and is designed to control double-acting cylinders by switching airflow direction between two outputs. What is 2 Way 3 Port and 5 Port Solenoid Valve? A 2 way 3 port solenoid valve (2/3 valve) has two positions and three ports, typically used to control single-acting cylinders or simple ON/OFF air flow. A 5 port solenoid valve (5/2 or 5/3 valve) has five ports and is designed to control double-acting cylinders by switching airflow direction between two outputs. 2 Way 3 Port vs 5 Port Solenoid Valve Feature 2 Way 3 Port Valve 5 Port Valve Port Number 3 ports 5 ports Positions 2 positions 2 or 3 positions Function ON/OFF or exhaust control Directional control Cylinder Type Single-acting cylinder Double-acting cylinder Airflow Control Basic Advanced switching System Complexity Simple systems Complex automation systems   Applications Single-acting cylinder systems Double-acting cylinder systems Industrial automation equipment Pneumatic machinery Manufacturing production lines Widely used...