Product introduction：1. Simple appearance and compact structure;2. The installation dimensions of the connection surface comply with the ISO 5599-1 international standard;3. The product adopts special seals, with large flow rate and long life;4. The 200, 300, and 400 series can realize conversion between internal pilot type, external pilot type, and air-controlled valve by changing the assembly direction of the seal;5. The valve body needs to be installed with a base. The base has two forms: single and multi-joint. The multi-joint base can be easily combined into any number of connections;6. The base has a variety of air connection and installation methods, making it easy to use;7. The 200, 300, and 400 series bases are integrated with the exhaust throttling function and do not require an external throttle valve when used. Category: Cover, Brand: Yadeke, Series: ESV-3