The pneumatic handwheel tank bottom valve is a highly clean, hygienic and non-retention diaphragm valve, which is mainly used in industrial fields such as biopharmaceuticals or food processing. It is installed at the bottom of the container equipment to empty the material inside the container and ensure that it does not become trapped inside the valve chamber. When a cleaning or opening task is required, the stem can be driven upward by manually rotating the handwheel or driving the pneumatic control actuator, so that the valve forms a conduction state. In addition, the ZMQF/ZSQF series pneumatic kettle bottom valve adopts an integrated DC structure, and the valve body is a streamlined unobstructed flow channel, which ensures smooth wear resistance, small flow resistance, and no dead ends.
A pneumatic handwheel tank bottom valve is a specialized type of
valve primarily used in industrial sectors such as biopharmaceuticals or
food processing. This valve is installed at the bottom of the container
equipment and is responsible for draining the material inside the
container to ensure that the material does not remain inside the valve.
In terms of working principle, when cleaning or opening tasks are required, the valve stem can be driven upward by manually rotating the handwheel or driving the pneumatic control actuator, so that the valve forms a conduction state. This design can effectively eliminate the residue phenomenon of process media usually at the outlet of the container, and realize the function of emptying and draining.
It is worth mentioning that the bottom valves (including pneumatic handwheel tank bottom valves) are welded or flanged to the bottom of the reactor or storage tank and other vessels with the help of the bottom flange (flange) of the valve. Because its valve body is a streamlined unobstructed flow channel, it ensures smooth wear resistance, small flow resistance, and no dead ends.
The advantages of pneumatic handwheel tank bottom valves include:
It can realize proportional adjustment to meet the needs of various working conditions.
The 35-degree installation orientation is adopted, so that the material discharge has a self-cleaning function, and the space is more convenient for equipment maintenance.
The streamlined unobstructed flow channel design in the valve
ensures smooth wear resistance, small flow resistance, and no dead ends.
However, there are some disadvantages to this valve:
The cost is relatively high due to the need for pneumatic actuators and control systems.
Maintenance costs are also higher, as it requires regular maintenance and overhaul.
The pneumatic drive mode makes it highly dependent on the air source.
A pneumatic handwheel tank bottom valve is a specialized type of
valve primarily used in industrial sectors such as biopharmaceuticals or
food processing. This valve is installed at the bottom of the container
equipment and is responsible for draining the material inside the
container to ensure that the material does not remain inside the valve.
In terms of working principle, when cleaning or opening tasks are
required, the valve stem can be driven upward by manually rotating the
handwheel or driving the pneumatic control actuator, so that the valve
forms a conduction state. This design can effectively eliminate the
residue phenomenon of process media usually at the outlet of the
container, and realize the function of emptying and draining.
It is worth mentioning that the bottom valves (including pneumatic handwheel tank bottom valves) are welded or flanged to the bottom of the reactor or storage tank and other vessels with the help of the bottom flange (flange) of the valve. Because its valve body is a streamlined unobstructed flow channel, it ensures smooth wear resistance, small flow resistance, and no dead ends.
| Model representation method | ||||||||||||
| WH | -600 | —Q1 | —C1 | —F | —16 | —P | —25 | —D1 | —B | —W2 | —B2 | —L |
| >1. Weiheng brand | >2. Drive mode | >3. Valve body type | >4. Connection method | >5. Sealing material | >6. Nominal pressure | >7. Valve body material | >8. Nominal diameter | >9. Control mode | >10. Explosion-proof level | —20~150℃ | >12. Accessory options | >13. Three flows |
| 1~7 mandatory options, 8~13 optional | ||||||||||||
| 1 codename | 5 codename | Sealed material | 10 code | Explosion-proof rating | |
| WH | Weiheng brand | F | PTFE | B | ExdIl BT4 Gb explosionproof and explosion-proof type |
| PPL | Para-polyphenylene | BZ | ExdllCT5 Gb explosion-proof and explosion-proof type | ||
| 2 codename | Drive mode | H | Metal hard seal | BC | Exdll CT6 Gb explosionproof and explosion-proof type |
| 600 | Pneumatic actuator series | Y | cemented carbide | BM | ExmbllT4 Gb cast explosion-proof type |
| 900 | Electric actuator system | X1 | Ding Qing rubber NBR | BA | Exiall CT6Ga intrinsically safe and explosion-proof |
| 2001 | Column plastic actuator angle seat valve series | X2 | Natural rubber NR | ||
| 2002 | Stainless steel actuator angle seat valve series | X3 | EPDM | 11 codenames | Medium temperature |
| X4 | Viton rubber FPM | W1 | -20-80C | ||
| 3 codename | Body type | X5 | Food grade silicone rubber SI | W2 | -20-150C |
| Q1 | Two-way valve | F46 | Fully lined polyperfluoroethylene FEP | W3 | -20-250C |
| Q2 | Three-way valve | PFA | Fully lined with soluble PTFE PFA | W4 | -29-425C |
| Q3 | Four-way valve | F4 | Fully lined PTFE | W5 | -29-650C |
| Q4 | Stationary ball valve | N | nylon | W6 | -196-60C |
| Q5 | V-ball | TC | Lined ceramic | ...... | ...... |
| Q6 | Low profile ball valve | J | Rubber lining | It has a special temperature that can be designed and manufactured according to customer requirements | |
| Q7 | Sanitary grade ball valves | PEEK | Polyether ether ketone | ||
| Q8 | Plastic ball valves | W | When the ring | 12 codenames | Accessory selection |
| Q9 | High vacuum ball valve | ...... | ...... | B1 | 2-position, 3-way solenoid valve |
| Q10 | Fluorine ball valve in the whole village | Other special sealing materials can be designed and manufactured according to customer requirements | B2 | 2-position 5-way solenoid valve | |
| Q11 | Cryogenic ball valves | B3 | 2-position 3-way explosion-proof solenoid valve | ||
| Q12 | Insulated ball valve | 6 codename | Nominal pressure | B4 | 2-position 5-way explosion-proof solenoid valve |
| Q13 | Eccentric hemispherical valve | ...... | ...... | B5 | Filter pressure reducing valve |
| Q14 | Tank bottom valve | B6 | Limit switch | ||
| Q15 | Ceramic ball valves | 7 codename | Body material | B7 | Explosion-proof limit switch |
| D1 | Centerline soft-sealed butterfly valve | Q | Ductile iron HT200 | B8 | Hand manipulation mechanism |
| D2 | 3. Eccentric butterfly valve | C | carbon steel | B9 | Locator |
| D3 | Sanitary butterfly valve | P | Stainless steel 304 | ...... | ...... |
| D4 | Plastic butterfly valve | R | Stainless steel 316 | ||
| D5 | Ventilation butterfly valve | PL | Stainless steel 304L | 13 codenames | Three flows |
| D6 | Fluorine butterfly valve in the whole village | RL | Stainless steel 316L | L | Tee L-type BC switching |
| D7 | High vacuum butterfly valve | U | PVC UPVC | T1 | Tee T-type C-port switch |
| D8 | Powder butterfly valve | PP | Reinforced polypropylene RPP | T2 | Tee T-type AB switching |
| Z1 | Gate valve | L | Aluminum alloy | T3 | Tee T-type AC switching |
| Z2 | Knife gate valve | ...... | ...... | T4 | Tee T-type B-port switch |
| J1 | Globe valve | Other special valve body materials can be designed and manufactured according to customer requirements | |||
| J2 | Bellows cut stop valve | ||||
| J3 | Angle seat valve | 8 codename | It is called the path | ||
| F1 | Upward expansion discharge valve | ...... | ...... | ||
| F2 | Downward discharge valve | ||||
| Other special valve body materials can be designed and manufactured according to customer requirements | 9 code | Control mode | |||
| Z | Standard switch type | ||||
| 4 codenames | Connection | T1 | Integral switching type | ||
| C1 | Female thread | T2 | Overall adjustment | ||
| C2 | By order | T3 | RS485 bus type | ||
| C3 | Male thread | D1 | Double acting | ||
| C4 | flange | D2 | Double-acting adjustment type | ||
| C5 | KF vacuum chuck | E1 | Uni-acting normally closed | ||
| C6 | weld | E2 | Single-acting normally closed regulation type | ||
| C7 | Pair clip | E3 | Single-acting and always open | ||
| C8 | Clamps | E4 | Single-acting normally open adjustment type | ||
Tel.: +86 577 8699 9257
Tel.: +86 135 8786 5766 /+86 137 32079372
E-Mail: wzweiheng@163.com
Adresse: Nr. 1633, Yidaoba Road, Binhai Industrial Park, Stadt Wenzhou, Provinz Zhejiang
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