
Burkert diaphragm valve, dual diaphragm type 677681 DN65 EA
LEHIY item code: LH-0020
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FDA-certified Burkert diaphragm valve with dual diaphragm 677681 DN65 EA PTFE/EPDM locking pin. This Burkert diaphragm valve features a dual diaphragm (PTFE/EPDM) integrated diaphragm. Burkert dual and single diaphragms are highly regarded among imported brands, boasting a particularly high repurchase rate.
Manufacturer quality and after-sales guarantee are provided, along with a contracted discount from Burkert. Burkert dual diaphragm valves are suitable for industrial and sanitary applications. sanitary dual diaphragm pumps. Burkert sanitary diaphragm valves are available with PTFE/EPDM composite diaphragm gaskets from DN8 to DN100.
The main BURKERT dual diaphragm models are: 677673, 677674, 677675, 677676, 677678, 677679, 677680, 677681, 677682, and. 677683.
Technical specifications for BURKERT diaphragm valve dual diaphragm DN65 677681: BURKERT dual diaphragm material: The liquid-immersed end is made of FDA-compliant PTFE; the air end is made of FDA-compliant EPDM.
Operating temperature range: 14ºF to 180ºF (-10ºC to 82ºC). BURKERT diaphragm safety: Complies with FDA 21 CFR 177.1550 (PTFE) and FDA 21 CFR 177.2600 (EPDM) standards.
BURKERT diaphragm valve definition: BURKERT diaphragm valves consist of a flexible diaphragm or a combination of diaphragms housed within the valve body and cover.
The closing element is a compression device connected to the diaphragm. regulating valves, automatic mechanical servo devices, switches, and counters.
The advantages of diaphragm valves are that their operating mechanism is isolated from the media passage, ensuring the purity of the working medium and preventing the possibility of media in the pipeline impacting the working parts of the operating mechanism.
BURKERT diaphragm valves are used in industries such as biopharmaceuticals, brewing, dairy, beverages, steam production, food processing, sterilization equipment, water supply equipment, and water distribution equipment in contact with drinking water, requiring a large number of BURKERT diaphragm valves for various controls.
As a core component, the valve core's hygienic quality is strictly monitored by health supervision departments. FDA-certified BURKERT diaphragm valve double diaphragm 677681 DN65 EA.
The sealing principle of the BURKERT diaphragm valve is that the downward movement of the operating mechanism presses down the diaphragm or diaphragm assembly to seal it with the weir-lined valve body or straight-through-lined valve body. sealing force can achieve a seal.
[2] The BURKERT diaphragm valve has only three main components: valve body, diaphragm and valve cover assembly.
The diaphragm separates the lower valve body cavity from the upper valve cover cavity, preventing the valve stem, valve stem nut, valve disc, pneumatic control mechanism, electric control mechanism, and other components located above the diaphragm from contacting the medium and causing no leakage.
This eliminates the need for a stuffing box sealing structure.
Burkert diaphragm valves are a special type of shut-off valve. Their opening and closing element is a diaphragm made of soft material that separates the valve body cavity from the valve cover cavity.
Due to limitations in valve body lining and diaphragm manufacturing processes, manufacturing larger valve body linings and larger diaphragms is difficult.
Therefore, Burkert diaphragm valves are not suitable for larger pipe diameters and are generally used in pipelines ≤DN200. Due to limitations in diaphragm material, diaphragm valves are suitable for low-pressure and low-temperature applications. Temperatures should generally not exceed 180℃.
Because of their excellent corrosion resistance, diaphragm valves are generally used in devices and pipelines handling corrosive media. The operating temperature and applicable media of BURKERT diaphragm valves are limited by the valve body lining material and diaphragm material.
A picture of a BURKERT diaphragm valve with a double diaphragm (DN65 677681) is available.
German Burkert diaphragm valves using Burkert double and single diaphragms have a good reputation among imported brands and a high repurchase rate. We offer manufacturer quality and after-sales guarantee, and special discounted prices from Burkert factory direct. Please contact us for inquiries!
Plain language sourcing guide for Burkert diaphragm valve, dual diaphragm type 677681 DN65 EA
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| Brand Name: | Burkert | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
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Burkert diaphragm valve, dual diaphragm type 677681 DN65 EA
Send the brand, model, part number, quantity, nameplate photos, and application requirements. LEHIY will check availability, suitable alternatives, packing details, and delivery options before quoting.
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Use this page as a practical sourcing note for engineers, buyers, and maintenance teams comparing automation components. Check the model name, brand, LEHIY code, application, and replacement requirements before sending an inquiry.
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Burkert diaphragm valve, dual diaphragm type 677681 DN65 EA verification notes
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