RUBBER DIAPHRAGMS FOR DOROT SERIES 75 CONTROL VALVES

Dorot 75 diaphragm spare part for sprinkler and drip irrigation. Made to sample, supplied for scheduled maintenance programs.

In water supply and automatic irrigation systems, the Dorot Series 75 control valve is widely recognized for its stability, smooth operation, and ease of maintenance.

The critical component determining the valve's sealing capability and control sensitivity is the rubber diaphragm. Anh Tri Tue supplies replacement rubber diaphragms manufactured to match actual samples, ensuring precise fitment, stable operation, and suitability for periodic maintenance needs.

1. What is the Diaphragm and its Role in Dorot Series 75 Valves?

The rubber diaphragm is the elastic component that creates the control chamber within the valve. As the system changes control pressure, the diaphragm moves to open or close the valve, ensuring:

  • Leak-free sealing and stable pressure retention during operation.
  • Smooth opening/closing, minimizing vibration and reducing the risk of water hammer.
  • Flow regulation with rapid response to control signals.
  • Easy replacement during maintenance, minimizing system downtime.

2. Practical Applications

Our replacement diaphragms for Dorot Series 75 valves are typically used in:

  • Sprinkler, drip, and automatic irrigation systems for agriculture and landscaping.
  • Internal water supply networks for factories and residential areas.
  • Pump stations and pipelines requiring pressure control, flow control, and surge protection.
  • Water systems containing light sediment or operating under harsh conditions (depending on valve configuration and diaphragm material).

3. When to Replace the Dorot Series 75 Diaphragm

You should inspect and replace the diaphragm if you notice the following signs:

  • The valve fails to seal tightly, causing leaks or pressure drops.
  • Slow response time, unstable operation, or abnormal vibration/chattering..
  • The rubber is hardened, cracked, blistered, deformed, or worn at the sealing surfaces.
  • The system has been operating for a long time under high pressure, fluctuating pressure, or exposure to chemicals/fertilizers.

Replacing the diaphragm with the correct type restores the valve to its original stable operating state, reduces minor faults, and extends the system's lifespan.

4. Why Choose Diaphragms from Anh Tri Tue?

Anh Tri Tue specializes in manufacturing based on customer samples, focusing on fitment precision and operational durability:

  • Sample-based Manufacturing: Ensures full compatibility with Dorot Series 75 valves.
  • High Quality: Consistent quality with excellent surface sealing and elasticity.
  • Scalability: We can supply in batches for large-scale maintenance in factories and irrigation systems.
  • Material Consultation: We advise on the best rubber materials based on the fluid medium (clean water, sediment-laden water, fertigation environments, etc.).

Note: The Dorot Series 75 comes in various sizes and configurations (2-way/3-way). To ensure the correct replacement, Anh Tri Tue recommends sending the actual sample or providing specific size/series information.

5. Ordering Information

To receive a quote and ensure the product meets your requirements, please provide one of the following:

  • Send the existing diaphragm sample for us to reverse engineer and replicate.
  • Or provide details: Dorot Series 75 valve size, valve type (2-way/3-way), and operating conditions (pressure, fluid medium).

Anh Tri Tue offers quick consultation, custom manufacturing, and delivery aligned with your maintenance schedule.

The rubber diaphragm is the decisive factor for the sealing, sensitivity, and stability of the Dorot Series 75 valve. Using the correct replacement diaphragm ensures smooth operation, minimizes leakage, and saves long-term maintenance costs.

If you need a replacement for your Dorot 75, Anh Tri Tue accepts custom orders based on actual samples, provides material consultation, and supports periodic supply plans. Simply send us a sample or valve specifications, and we will check and respond quickly to keep your project on schedule.