DW3A013 Wafer Butterfly Valve Wormgear
DW3A013 is a DN50 wafer type butterfly valve with a wormgear operator, designed for on-off and throttling service in water, low-pressure industrial, and heating systems. It clamps between two pipe flanges without requiring separate valve flanges, offering a compact solution where space is limited. The wormgear provides precise control and self-locking action, preventing unintended movement after setting the valve position.
| Model Code | DW3A013 |
|---|---|
| Product Type | Wafer Butterfly Valve[Wormgear] |
| Category | Wafer Type Butterfly Valves |
| Manufacturer | Tianjin MIC Valve Co., Ltd. |
| Size and Pressure Rating | Confirmed on quotation |
| Certification | ISO 9001 and ISO 14001 certified plant |
| Model | DW3A013 |
| Valve Type | Wafer type butterfly valve with wormgear |
| Nominal Diameter | Confirmed on request |
| Connection | Wafer, clamped between pipe flanges |
| Operation | Quarter-turn with wormgear operator |
| Series | DW3A013 wafer butterfly valve series |
What This Model Gives You
- Compact wafer body reduces face-to-face length, ideal for tight installations between flanges
- Wormgear operator allows precise, incremental adjustment and holds position under pressure
- Self-locking mechanism prevents drift or unintended movement after setting
- No separate valve flanges required—clamps directly between existing pipe flanges
- Quarter-turn operation with wormgear enables smooth, controlled closure and opening
- Part of a valve programme certified to ISO 9001 and ISO 14001
Problems It Removes
- Gate valves are too long and heavy for installations with minimal space between flanges
- Manual levers alone may not hold position under vibration or pressure fluctuations
- Lack of precise control in throttling applications leads to overshoot or unstable flow
- Operators need a reliable way to set and maintain valve position without constant monitoring
- Buyers require a single supplier for both small and large diameter valves across multiple projects
Where It Is Installed
- Isolation of branch lines in water distribution systems where space between flanges is limited
- Throttling control in low-pressure heating circuits in commercial buildings
- Process line shut-off in chemical and pharmaceutical plants with frequent on-off cycles
- Valve integration in pump skids and compact equipment packages where weight and length matter
- Retrofit applications where replacing a gate valve with a shorter alternative is needed
Buyers It Suits
- Water utility engineers sourcing compact isolation valves for municipal distribution networks
- HVAC and building services contractors standardising on quarter-turn valves with precise control
- Pump and skid system integrators needing short-pattern valves with reliable operation
- EPC firms procuring medium- and low-pressure valves for heating and water packages
- Valve distributors stocking a range of wafer butterfly valves with operator options
How It Is Built
- Wafer body clamped between two pipe flanges with through bolts
- Wormgear operator for precise, self-locking quarter-turn operation
- Quarter-turn stem with gear reduction for controlled motion and position holding
- Resilient seat for bidirectional sealing and low leakage
- Part of a DWA wafer series that continues through larger nominal diameters
Material Selection
- Body, disc, stem, and seat materials are confirmed per order based on the medium and temperature
- Seat and disc variants follow the options available in the DW3A013 series
- Material certificates are issued with the order upon request
How It Is Made
- Body casting inspected and machined on in-house fine machining equipment
- Wormgear assembly and stem integration performed as a matched unit
- Disc and seat fitted with alignment to ensure centred travel and sealing
- Valve assembled, operated through full cycle, and pressure tested before packing
- Marked, wrapped, and crated for container shipment from Tianjin
How It Is Checked
- Dimensional check of body face-to-face length and flange bolt pattern before assembly
- Seat and shell tightness testing on the assembled valve
- Operating torque and full quarter-turn travel verified on every unit
- Testing carried out on the 10 sets of imported inspection and testing equipment
- Records maintained under the ISO 9001 quality management system
Certificates Issued With This Valve
- ISO 9001 quality management system certification
- ISO 14001 environmental management system certification
Certification statements are limited to the management system certificates the factory actually holds. Product-level approvals for your market are confirmed before order.
What Can Be Changed
- Wormgear operator fitted with lever or actuator interface as required
- Flange drilling matched to the standard used on the buyer's pipework
- Seat and disc variant selected for the medium and temperature on the buyer's line
- Private label marking and packing available on OEM orders
- Mixed-diameter orders combined with other valves in one container
How It Compares With the Alternatives
| DN50 wafer butterfly valve with lever | The lever offers faster operation but lacks self-locking; the wormgear holds position under pressure and vibration |
|---|---|
| Lug type butterfly valve | The lug body allows end-of-line service; the wafer body requires flanges on both sides and cannot be used as a pipe end closure |
| Wafer butterfly valve with gear operator | The wormgear provides higher torque and self-locking; other gear types may not hold position as reliably |
| Gate valve at DN50 | The gate valve gives a full bore but is longer, heavier, and slower to operate than the wafer butterfly with wormgear |
Installing and Operating This Valve
- Confirm the flange standard and bolt pattern on both pipe flanges before ordering
- Leave the disc slightly open while inserting the valve between flanges to avoid seat damage
- Tighten the through bolts evenly in a cross pattern to seat the body squarely
- After tightening, open the disc fully and confirm free quarter-turn travel with the wormgear
- Do not use the wafer body as a pipe end closure during pressure testing
- Cycle the valve periodically on lines that remain in one position for long durations
Related Models Industries and Guides
DW3A041 Wafer Type ButterflyValve with Pin DN400
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DW3A040 Wafer Type Butterfly Valve with Pin DN300
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DW3A039 Wafer Type Butterfly Valve with Pin DN300
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DW3A037 Wafer Type Butterfly Valve with Pin DN200
View SpecificationWater Supply and Drainage
Sectioning valves non-return protection and joints for distribution mains pumping stations and treatment works.
Heat Supply
District heating primary and secondary circuit isolation balancing and expansion.
How To Choose Between Wafer and Lug Butterfly Valves
The body style decides whether the valve can hold the line on its own. Here is how to pick without guessing.
Installing a Wafer Butterfly Valve Between Flanges
The installation sequence that avoids seat damage, disc fouling and leaking joints on first pressure test.
DW3A013 Wafer Butterfly Valve Wormgear FAQ
What size and pressure rating is DW3A013?
The nominal diameter and pressure rating are confirmed on request based on your line data, as the same body is offered in multiple variants across the DW3A013 series.
Can this valve be used at the end of a pipe run?
No. A wafer body requires flanges on both sides to clamp against. For end-of-line service, use the lug type body instead.
Which materials are used for the body, disc, and seat?
Material selection depends on the medium and temperature on your line. We confirm the combination during quoting and issue material certificates upon request.
Can it be supplied with a different operator instead of the wormgear?
Yes. The stem can be fitted with a lever, gearbox, or actuator. The valve is assembled and tested with the operator before shipment.
Do you supply larger diameters in the same series?
Yes. The DW3A013 wafer butterfly valve series continues through larger nominal diameters, covering DN10 to DN2600 across all families.
What certification does the factory hold?
Tianjin MIC Valve Co., Ltd. is certified to ISO 9001 quality management system and ISO 14001 environmental management system.
How do I get a quotation?
Send the model, quantity, flange standard, and medium by WhatsApp or email, and our sales engineers will provide a quotation with confirmed specifications.
Get a Price for DW3A013 Wafer Butterfly Valve Wormgear
Tell us the quantity, flange standard and the medium on your line. You get a quotation with a confirmed specification sheet, not a catalogue page.