Zubi T115-99AR – Ball Type Threaded Check Valve
The Zubi T115-99AR is a unidirectional ball check valve with internal threads, available in BSP or NPT configurations. The ball is actuated by differential flow pressure and returns to the seat when flow decreases or reverses. No actuator is required for operation.
Technical Data
- Sizes: DN25, DN40, DN50, DN65, DN80
- Equivalent: 1" to 3"
- Connection: Female thread GAS/BSP or NPT
- Pressure rating: PN10
- Operating pressure DN25–DN80: 10 bar
- Body/Cover: EN-GJS-500 / GGG50
- Alternative body materials: CF8M / AISI 316, CF8 / AISI 304, special alloys on request
- Seat ring: NBR; other elastomers available on request
Ball and Sealing
The ball rotates during operation, minimizing deposit build-up on the sealing surface. For DN25–DN65, the ball is resin-based. For DN80, the ball is aluminum with NBR coating. Resin balls cannot be rubber-coated.
Applications
Suitable for water, wastewater, low solids-content liquids, and air, provided the media is compatible with GGG50, NBR, and the selected ball material. Full bore design and absence of dead zones reduce risk of solids accumulation in small-diameter drainage, auxiliary networks, and pump installations.
Installation
Flow direction is indicated on the body. Installation is possible in horizontal, vertical, or inclined pipelines, depending on body configuration. The removable cover allows access to the ball for inspection or cleaning without disturbing pipework.
Standards / Compliance
Compliant with PED 2014/68/EU, Fluid Group 1(b), 2, Category I Module A, and ATEX 2014/34/EU for Area 2 & 22.