The duckbill multi-gear straight ball valve is a special valve that differs from ordinary ball valves in structure and working principle. This valve usually consists of parts such as valve body, valve seat, ball and stem, and has the function of multi-gear adjustment.
The ball of a duckbill multi-speed straight ball valve usually has a special shape and material to allow for better control of the flow of media when opening and closing. The design of its seat and stem has also been optimized to provide better sealing performance and adjustment capabilities.
This valve usually has multiple gears and can be adjusted according to different needs. By rotating the stem, the position and angle of the sphere can be changed, thereby controlling the flow and direction of the medium. This valve is suitable for applications where precise control of media flow and direction is required, such as chemical, petroleum, pharmaceutical, and other fields.
The duckbill multi-position straight ball valve is a powerful and easy-to-operate valve that can meet the fluid control needs of different fields. Its unique design and optimized performance make it an essential component in the field of fluid control.
| name | Duckbill multi-position straight-through ball valve |
| It is called the path | DN15-DN200mm |
| Nominal pressure | 1.6Mpa (If you need other pressure standards, please specify when ordering) |
| Connection | Quick assembly, clamps, quick cards, chucks |
| Body material | Carbon Steel (C) Stainless Steel 304 (P) Stainless Steel 316 (R) |
| Surface treatment | Mirror polishing inside and outside |
| Sealed material | Teflon (PTFE), EPDM, Silicone Rubber (VMQ), Butadiene Rubber (NBR), Fluorinated Rubber (FPM), Metal Seals (H), Carbide (Y) |
| Use the medium | Gas, liquid, oil, vacuum, water vapor |
| Medium temperature | -20℃-150℃(F) 、 -20℃-250℃ (PPL) 、-29℃-425℃(H)(Y) |
| apply | This type of ball valve series is a hygienic type of valve series for material transfer control. It is widely used in food and beverage processing, as well as in the pharmaceutical and chemical industries |
| standard | DIN standard series, 3A standard series SMS standard series, ISO/IDF standard series, BS/RJT standard series, ASME/BPE, etc. (There are various standard valve series that can be provided to customers) |
| The components of ball valves generally include: | A handle, a ball with a through cavity, valve body, valve core and shaft seal |
Remark:
The body of the sanitary straight-through quick-loading ball valve can adopt: casting or forging process;
The forms are divided into: floating, fixed, and top-mounted;
Sealing is divided into: soft seal and hard seal;
Withstand pressure up to: 2000 lbs, temperature resistance down to -196C up to 570.
Other special sealing materials or special temperatures can also be designed and selected according to customer requirements.
| 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 | ||
Sanitary Plastic Duckbill Multi-Position Pass-Through Ball Valve
The sanitary plastic duckbill multi-position pass-through ball valve is a high-performance valve engineered for precise flow control, hygienic fluid transfer, and reliable operation. Constructed from FDA-approved, high-quality plastic, it offers lightweight, corrosion-resistant, and chemically stable performance for industries requiring strict hygiene standards.
Its duckbill design ensures leak-free operation and zero fluid retention, while the multi-position pass-through configuration enables flexible flow control for complex pipeline systems. This valve is ideal for food, beverage, pharmaceutical, biotechnology, and cosmetic applications, supporting CIP (Clean-in-Place) and SIP (Sterilization-in-Place) processes to maintain optimal sanitation.
Polished internal surfaces prevent fluid residue accumulation
Duckbill shape minimizes stagnation points and microbial growth
Compliant with FDA, CE, ISO9001, and 3A sanitary standards
Allows versatile flow control with multiple positions
Supports precise fluid routing in complex pipeline systems
Reduces pressure drop while ensuring stable operation
High-quality plastic construction reduces mechanical stress on pipelines
Resistant to chemical corrosion, moisture, and temperature variations
Ideal for pipelines handling acidic or alkaline fluids
Pass-through design supports CIP and SIP processes
Smooth surfaces simplify routine cleaning and inspection
Minimal maintenance requirements compared to metal counterparts
Each valve is individually wrapped in protective plastic film
Secondary packaging in cardboard boxes or crates to prevent impact
Anti-static materials used for static-sensitive plastic valves
Avoid direct exposure to sunlight, heat, or moisture during transit
Handle carefully to prevent deformation or cracking of the plastic body
Do not stack heavy objects on top of packaged valves
Inspect the valve for visible damage before installation
Check that actuator and connection components are intact
Retain packaging for future transport or storage

Verify valve specifications, including size, material, and flow direction
Inspect seals, duckbill shape, and pass-through components
Ensure pipelines are clean, depressurized, and free from foreign objects
Align the valve in the intended flow direction
Secure connections using sanitary clamps or threaded fittings
Avoid over-tightening to prevent stress on plastic body
Confirm proper operation by rotating the ball to all positions
Install in dry, clean areas
Provide adequate space for inspection, maintenance, and actuator operation
Protect the valve from mechanical impact or vibration
| Parameter | Specification |
|---|---|
| Valve Type | Sanitary plastic duckbill multi-position pass-through ball valve |
| Material | FDA-approved plastic (PP, PVDF, or PFA) |
| Ball Material | Plastic or PTFE-coated stainless steel |
| Seat Material | EPDM, FKM, PTFE |
| Surface Finish | Smooth, Ra ≤ 0.8 μm |
| Port Type | Full-bore pass-through |
| Connection Type | Sanitary clamp or threaded |
| Sizes Available | DN15 – DN100 (1/2" – 4") |
| Operating Pressure | PN10–PN25 |
| Temperature Range | -10°C to 120°C |
| Actuation | Manual, pneumatic, or electric |
| Cleaning Compatibility | CIP & SIP |
| Certifications | FDA, CE, ISO9001, 3A |
Flush the valve with clean water or approved sanitizing solution
Inspect duckbill surfaces and pass-through channels for residue
Ensure seals and gaskets are intact and properly seated
Minimal lubrication required due to low-friction plastic components
Use only food-grade or approved lubricants for actuator stems
Check for cracks, deformation, or discoloration
Verify multi-position ball rotation is smooth and consistent
Inspect seals for wear or leaks
Do not exceed rated pressure and temperature limits
Avoid using the valve with incompatible chemicals
Ensure operators are trained in multi-position operation
Use gloves and protective eyewear when handling chemicals
Follow industry safety protocols for pressurized pipelines
In case of leakage, shut off upstream flow immediately
Replace damaged seals or duckbill components before resuming operation
Maintain a clean workspace to prevent contamination
Schedule regular inspections for wear, cracks, or discoloration
Replace EPDM or FKM seals periodically based on usage
Ensure actuators are functioning properly and do not cause stress on the valve body
| Issue | Possible Cause | Solution |
|---|---|---|
| Leakage at duckbill joint | Worn or misaligned seal | Replace seal, realign duckbill |
| Stiff or blocked operation | Residue or debris in ball | Flush and clean valve, inspect ball rotation |
| Actuator malfunction | Electrical or pneumatic failure | Inspect actuator, repair or replace |
| Plastic deformation | Excessive temperature or pressure | Reduce system stress, verify limits |
| Customer | Industry | Feedback |
|---|---|---|
| FreshJuice Ltd | Beverage | “Plastic construction is lightweight yet durable; cleaning is effortless.” |
| BioPharma Co | Pharmaceutical | “Duckbill design ensures zero residue and smooth multi-position control.” |
| DairyPure Inc | Dairy | “CIP and SIP compatibility saves time and reduces chemical use.” |
| CosmoCare | Cosmetics | “Multi-position control allows precise fluid routing without leaks.” |
Zero retention duckbill prevents contamination
Pass-through design supports complete cleaning
High-quality FDA-approved plastic resists chemical corrosion
Minimal stress on pipelines due to lightweight construction
Multi-position ball enables precise flow routing
Compatible with manual or automated actuation systems
Minimal wear on plastic surfaces
Easy cleaning and inspection without system shutdown
Reduced maintenance costs compared to metal valves
Lightweight design reduces handling and installation labor
The sanitary plastic duckbill multi-position pass-through ball valve is an essential component for hygienic, high-purity pipelines in the food, beverage, pharmaceutical, biotechnology, and cosmetic industries. Its duckbill design, multi-position ball, and pass-through configuration ensure reliable, leak-free operation, zero fluid retention, and flexible flow control. Constructed from FDA-approved plastic, the valve is lightweight, corrosion-resistant, and chemically stable, making it ideal for CIP and SIP cleaning processes. With proper installation, routine maintenance, and adherence to safety standards, this valve delivers long-lasting performance, reduced operational costs, and high system hygiene.
Tel: +86 577 8699 9257
Tel: +86 135 8786 5766 /+86 137 32079372
Email: wzweiheng@163.com
Address:No. 1633, Yidaoba Road, Binhai Industrial Park, Wenzhou City, Zhejiang Province
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