Lined Metal Diaphragm Valves
Hills-McCanna® Metal, PTFE, & Teflon Lined Diaphragm Valves are rugged, durable, and designed to handle a wide range of fluids and gases including highly corrosive toxic chemicals and abrasive slurries. Available in a wide variety of materials and options, rubber lined sizes 1” to 12”, plastic lined sizes .5” to 3”, with a temperature range of (-)60°F to (+) 350° F at pressures to 200 psig.

Product Features & Benefits
- NO PACKING OR SEALS TO ADJUST
- NO VALVE SEATS TO REPLACE
- IN-LINE REPAIRABILITY
- DIFFERENT MATERIAL OPTIONS TO CHOOSE FROM: Metal lined diaphragm valves offer the following liner options:
- Soft Rubber
- Hard Rubber
- Neoprene
- Polypropylene
- PVDF
- ETFE
- PFA

- BUBBLE-TIGHT SHUTOFF: On pressure or vacuum applications, zero leakage in accordance with MSS SP-88.

- THROTTLING: Ideal for both on/off and modulation applications. Streamline flow path is cavity free for excellent control capabilities.

- STREAMLINE FLOW/BI-DIRECTIONAL: Smooth contoured body design has no cavities or pockets for smooth flow and contamination-free performance. Hills-McCanna valves can be oriented to facilitate self-draining.
Technical Details
Size Range
Valve Sizing Constants (CV), Rubber Line: 1" to 12"
Percent of Stem Travel | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Valve Size | Turns* | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
1 | 4-1/2 | 2.5 | 6 | 9 | 11 | 12.5 | 13 | 13.5 | 14 | 14 | 14 |
1.5 | 5-3/4 | 7.5 | 15 | 21.5 | 26.5 | 31 | 33.5 | 36 | 37.5 | 38.5 | 39 |
2 | 7-1/4 | 13 | 24 | 34 | 43 | 48 | 52 | 54 | 56 | 57 | 57 |
2.5 | 7-1/4 | 21 | 41 | 59 | 75 | 85 | 93 | 98 | 100 | 101 | 101 |
3 | 7-1/2 | 33 | 69 | 108 | 139 | 157 | 164 | 174 | 177 | 179 | 180 |
4 | 10-3/4 | 56 | 119 | 184 | 244 | 285 | 316 | 334 | 343 | 348 | 350 |
6 | 15-3/4 | 165 | 345 | 505 | 620 | 710 | 780 | 830 | 860 | 880 | 890 |
8 | 18 | 190 | 395 | 620 | 850 | 1130 | 1325 | 1450 | 1570 | 1640 | 1670 |
10 | 20-1/4 | 240 | 505 | 805 | 1120 | 1430 | 1700 | 1830 | 1950 | 2010 | 2050 |
12 | 22-3/4 | 360 | 740 | 1160 | 1620 | 2100 | 2480 | 2640 | 2740 | 2780 | 2800 |
* Approximate turns to close |
Valve Sizing Constants (Cv), Plastic Lined: .5" to 3"
Percent of Stem Travel | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Valve Size | Turns* | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
0.5 | 3 | 0.2 | 0.6 | 1.3 | 2.1 | 2.8 | 3.4 | 3.8 | 4 | 4.1 | 4.1 |
0.75 | 3-3/4 | 1.1 | 2.5 | 3.8 | 5 | 5.9 | 6.4 | 6.7 | 6.9 | 7 | 7 |
1 | 4-1/2 | 2 | 4.5 | 7.5 | 10.5 | 15 | 17.5 | 18 | 19 | 19 | 19.5 |
1.5 | 5-3/4 | 4 | 9.5 | 15.5 | 22 | 27.5 | 33 | 36.5 | 38.5 | 39.5 | 40 |
2 | 7-1/4 | 10 | 20 | 31 | 40 | 47 | 51 | 55 | 58 | 59 | 60 |
2.5 | 7-1/4 | 22 | 39 | 51 | 61 | 69 | 75 | 79 | 82 | 83 | 84 |
3 | 7-1/2 | 27 | 51 | 72 | 90 | 104 | 116 | 126 | 133 | 138 | 140 |
* Approximate turns to close |
Weight of Standard Hills-McCanna Diaphragm Valves
Threaded End, Butt Weld End, Socket End (approximate - in pounds) | ||||||
---|---|---|---|---|---|---|
Size | 1/2" | 3/4" | 1" | 1-1/2" | 2" | 2-1/2" |
Solid Plastic | 1 | 2 | 2.75 | 6 | 10.5 | --- |
All Others | 2 | 2.5 | 4 | 9.5 | 15 | 27 |
Flanged End (approximate - in pounds) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | 1/2" | 3/4" | 1" | 1-1/2" | 2" | 2-1/2" | 3" | 4" | 6" | 8" | 10" | 12" |
PVC | 1.5 | 2.25 | 3.5 | 7 | 12.75 | --- | --- | --- | --- | --- | --- | --- |
All Others | 4 | 5 | 7 | 13 | 22 | 36 | 49 | 97 | 170 | 360 | 600 | 885 |
Pressure/Temperature Recommendations: (-)60°F to (+) 350°F at pressures to 200 psig

Valve Options
Please review Diaphragm Valves Brochure for full details.
Bonnet (Non-Wetted Options)
End Connection Options
- FLANGED
- ½” to 12”
- ½” to 2” Solid Plastic
- BUTT WELD
- ½” to 4”
- Metal Only
Diaphragm Options
Exclusive Sealing Bead
The sealing bead extends around and between bolt holes and across the setting area. This exclusive design localizes bolting and closing forces, assuring a positive seal with minimum bolting torque, and stem thrust.
Automation
Hills-McCanna actuators are available for on / off applications or when more complex flow control is required. Actuators can be provided with positioners, limit switches, speed controls, filter regulators, and a variety of other accessories and options to meet sophisticated flow control and fine throttling requirements.
Literature
Diaphragm Valve Assembly
Diaphragm Valve Installation and Operational Manual
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