ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

Overview of ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve  has reliable sealing performance, which can prevent waste or environmental pollution caused by medium leakage, so as to affect the health of operators. Therefore, it is especially suitable for the regulation of highly toxic, valuable, volatile and permeable media, and for the occasion of pipeline vacuum.

Structural principle of ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

The pneumatic diaphragm corrugated seal regulator is a deformation product of the pneumatic diaphragm single and double seat regulating valve. It is composed of gas film actuator and bellows sealing valve.

The upper valve cover of the valve part is equipped with bellows components to isolate the medium from the outside and ensure that the valve rod moves up and down. In addition, there is still PTFE "V" packing seal at the upper end of the upper valve cover. Once the bellows parts are damaged, the second seal will be made. The outer wall of the upper valve cover is also equipped with a pressure gauge to indicate the pressure outside the bellows. If the bellows is damaged for some reason, the indicated value of the pressure gauge will increase and change accordingly.

Features of ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

1. Pneumatic diaphragm straight through single seat bellows regulating valve: there is only one valve seat in the valve, which has the advantage of small leakage, but the unbalanced force is large. Limited by the output force of pneumatic diaphragm actuator, the working pressure difference should not be too high.

2. Pneumatic diaphragm straight through double seat bellows regulating valve: there are two valve seats in the valve, which has the advantages of large flow capacity and small unbalanced force.

3. The bellows assembly with anti rotation structure is connected with the spool so as to prevent the torsion of the assembly during the assembly process and damage the bellows components.

4. It has a double sealing structure: a Teflon V-shaped packing sealing area is set at the upper end of the upper valve cover. Once the bellows assembly fails, it can be used as the second seal, which increases the sealing safety of the pneumatic bellows regulating valve.

5. The upper end of the valve stem is a left-hand thread, so that the stroke can be adjusted through the connecting nut when the valve stem cannot rotate.

Main tech data of ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve

Connection mode: flange type

Nominal pressure PN (MPA): 1.6, 4.0, 6.4

Flow characteristics: straight line; Equal percentage

Rated stroke L (mm): 16, 25, 40, 60

Air source interface: m16x 1.5

Action mode: air on; Airtight

Note: Any special design or question of ZMAN-10W ZMAN-16W Pneumatic bellows seal control valve, kindly contact the manufacturer for more details.