The NEOTECHA NTB-NTC ball valve is a hermetically sealed industrial valve that can be used to isolate, throttle and control corrosive gases, liquids, pastes and powder products in pipelines, containers and equipment.
These installation and maintenance instructions describe the Neotecha NTB-NTC ball valve, an airtight shut-off industrial valve used for isolating, throttling and regulating corrosive gases, liquids, pastes and powders in pipes, vessels and equipment. The body parts and the surfaces of the ball or C-shaped core that contact the medium are PFA-coated, and the seat and control orifice plates are available in various materials to suit the medium. Nominal sizes cover DIN-PN 16 and JIS 10K DN 15 to DN 150 and ANSI 150 lbs ½" to 6", with a pressure range of 16 bar (0.1 mbar vacuum) and a temperature range of -40 °C to 180 °C.
The document covers general safety information and potential hazards, requirements for operating personnel, transport and storage conditions, valve marking, installation in pipelines, installation options and body variants, plus step-by-step valve installation with flange dimensions and recommended tightening torques for DIN-PN 16, ANSI B 16.10 150 lbs and JIS-10K flanges. It also includes the pressure-temperature diagram, face-to-face dimensions and notes on the NTC control valve. This manual is written in Chinese.
| Nominal diameter range (DIN-PN 16 / JIS 10K) | DN 15 / 20 / 25 / 40 / 50 / 65 / 80 / 100 / 150 |
|---|---|
| Nominal diameter range (ANSI 150 lbs) | ½", ¾", 1", 1½", 2", 2½", 3", 4", 6" |
| Pressure range | 16 bar (0.1 mbar vacuum) |
| Test pressure | 1.5 x PN = 24 bar |
| Temperature range | -40 °C to 180 °C |
| Maximum operating temperature | 200 °C |
| Transport and storage temperature | -20 °C to +65 °C |
| Body material | Stainless steel or two-component polyester paint coating |
The pressure range is 16 bar with 0.1 mbar vacuum, and the test pressure is 1.5 x PN = 24 bar. The stated temperature range is -40 °C to 180 °C.
The NTB ball valve can be installed independent of flow direction, but the NTC may only be installed in one direction, with the arrow on the valve side pointing in the direction of flow.
Store the valve in a slightly open position, protect it from external forces and damage to the coating, and use desiccant or heating in damp storage areas to prevent condensation.
No. Mechanical modification of the valve or repair with parts from other manufacturers is not permitted, and repair work may only be carried out by trained manufacturer personnel.