Diaphragm only. Spring, spring seat, bonnet, and complete valve are sold separately.
The Netafim 61DIA2HP standard-pressure diaphragm, manufacturer part number 71680-007300, is a replacement sealing component for 2-inch, 2-inch angle, and 323 Series 100 iron valves. It is diaphragm number 3, with a 118 mm (4.65-inch) dimension and a 21–230 psi diaphragm operating range.
The diaphragm opens and closes the water passage as pressure is applied to or released from the valve control chamber. Select this standard-pressure version when it matches the existing valve configuration and operating conditions. Netafim also offers low-pressure diaphragms for the same nominal valve sizes, so size alone is not enough to select a replacement.
Replace the sealing component with the correct pressure version
A natural-rubber diaphragm provides the flexible sealing element used by the Series 100 valve. Matching the part number and diaphragm number helps keep the repair consistent with the valve’s intended operating range.
| Feature |
Benefit |
| Direct-sealing diaphragm |
Controls the water passage as the valve control chamber pressurizes and vents. |
| Standard-pressure configuration |
Matches compatible valves that use diaphragm number 3. |
| Individual replacement part |
Lets you order the diaphragm separately from the spring and spring seat. |
Technical specifications
| Specification |
Detail |
| Manufacturer |
Netafim |
| Model |
61DIA2HP |
| Manufacturer part number |
71680-007300 |
| Diaphragm number |
3 |
| Pressure configuration |
Standard pressure |
| Diaphragm operating range |
21–230 psi |
| Diaphragm dimension |
118 mm (4.65 inches) |
| Material |
Natural rubber |
| Compatible valve family |
Series 100 iron valves: 2-inch, 2-inch angle, and 323 |
Before ordering
Match the valve family as well as its size. Netafim nylon and PVC valve diaphragms have separate part numbers, and 323 identifies a specific valve configuration. The diaphragm operating range does not replace the pressure rating or operating restrictions of the complete valve and its controls.
| Check |
What to confirm |
| Existing part |
Match 61DIA2HP, 71680-007300, and diaphragm number 3. |
| Valve construction |
Confirm a compatible Series 100 iron valve rather than a nylon or PVC model. |
| System conditions |
Confirm the required pressure class and the complete valve’s pressure, temperature, and fluid limits. |
| Repair scope |
Check whether the spring, spring seat, or bonnet also needs separate replacement. |
Need help confirming the correct replacement diaphragm? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your valve model, existing part number, or photos.
