Diaphragm Valves - Dwyer

Diaphragm valves are designed to regulate the flow of liquids and gases by using a flexible diaphragm to create a secure seal. These valves are ideal for applications where the transported media is corrosive, abrasive, or requires sanitary handling. Their simple yet effective design minimizes the risk of contamination, making them widely used in industries such as chemical processing, pharmaceuticals, food and beverage, and water treatment.


Centro offers a comprehensive selection of diaphragm valves in manual and pneumatic actuated designs to suit various operational needs. Whether you require precise hand-operated flow control or an automated valve for high-efficiency processing, we have the right solution.

Types of Diaphragm Valves We Offer

  • Manual Diaphragm Valves – Hand-operated for precise control in low-pressure systems
  • Pneumatic Actuated Diaphragm Valves – Use compressed air for automated on/off operation
  • Weir-Type Diaphragm Valves – Provide excellent sealing for corrosive and particulate-laden fluids
  • Straight-Through Diaphragm Valves – Offer minimal flow resistance for high-purity applications
  • Sanitary Diaphragm Valves – Designed for hygienic industries, including food, beverage, and pharmaceuticals

Why Choose Diaphragm Valves from Centro?

  • Superior sealing performance for corrosive, abrasive, and sanitary applications
  • Available in a variety of materials, including stainless steel, plastic, and lined options
  • Suitable for industries such as chemical processing, pharmaceuticals, biotechnology, and water treatment
  • Sourced from trusted manufacturers to ensure durability, reliability, and compliance with industry standards


Centro provides high-quality diaphragm valves designed for long-lasting performance. Browse our selection and order online today, or contact our team for expert assistance in selecting the right valve for your application.

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1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
MPN:DCS25C1D
1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
Sale Price:

$106.48$143.80

Regular Price: $143.80, you save $37.32 (26%)
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Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
MPN:DCV25C1D
1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$132.36$178.75

Regular Price: $178.75, you save $46.39 (26%)
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Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
MPN:DCV25T1D
1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$110.00$148.55

Regular Price: $148.55, you save $38.55 (26%)
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Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
MPN:DCS25T2D
1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
Sale Price:

$85.97$116.10

Regular Price: $116.10, you save $30.13 (26%)
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Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
MPN:DCV25T2D
1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$107.92$145.75

Regular Price: $145.75, you save $37.83 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
MPN:DCS25T3D
1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
Requires Quote
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
MPN:RDCV25C
1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
Sale Price:

$108.96$147.15

Regular Price: $147.15, you save $38.19 (26%)
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Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
MPN:RDCV25T
1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
Sale Price:

$81.82$110.50

Regular Price: $110.50, you save $28.68 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection.
MPN:RDCS25T
1" diaphragm valve, remote coil, NPT connection.
1" diaphragm valve, remote coil, NPT connection.
Sale Price:

$62.35$84.20

Regular Price: $84.20, you save $21.85 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
MPN:DCS25C1D
1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
1" diaphragm valve, integrated coil, coupling connection, 110 VAC DIN electrical connection.
Sale Price:

$106.48$143.80

Regular Price: $143.80, you save $37.32 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
MPN:DCV25C1D
1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
1" diaphragm valve, integrated coil, coupling connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$132.36$178.75

Regular Price: $178.75, you save $46.39 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
MPN:DCV25T1D
1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
1" diaphragm valve, integrated coil, NPT connection, 110 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$110.00$148.55

Regular Price: $148.55, you save $38.55 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
MPN:DCS25T2D
1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
1" diaphragm valve, integrated coil, NPT connection, 220 VAC DIN electrical connection.
Sale Price:

$85.97$116.10

Regular Price: $116.10, you save $30.13 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
MPN:DCV25T2D
1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
1" diaphragm valve, integrated coil, NPT connection, 220 VAC, DIN electrical connection, Cv factor of 23.
Sale Price:

$107.92$145.75

Regular Price: $145.75, you save $37.83 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
MPN:DCS25T3D
1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
1" diaphragm valve, integrated coil, NPT connection, 24 VDC DIN electrical connection.
Requires Quote
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
MPN:RDCV25C
1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
1" diaphragm valve, remote coil, coupling connection, Cv factor of 23.
Sale Price:

$108.96$147.15

Regular Price: $147.15, you save $38.19 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
MPN:RDCV25T
1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
1" diaphragm valve, remote coil, NPT connection, Cv factor of 23.
Sale Price:

$81.82$110.50

Regular Price: $110.50, you save $28.68 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times

1" diaphragm valve, remote coil, NPT connection.
MPN:RDCS25T
1" diaphragm valve, remote coil, NPT connection.
1" diaphragm valve, remote coil, NPT connection.
Sale Price:

$62.35$84.20

Regular Price: $84.20, you save $21.85 (26%)
Loginto your account
Typically ships within 3-5 weeks

Subject to factory lead times