Combustion Valve - Series: 22
Combustion Valve - Series: 22
Size:2" thru 14" for 125/150 lb. Flanging
Maximum Operating Temperature:Maximum design temperature to 900°F
Maximum Differential:1 psig.
Maximum Containment:25 psig
Design Standard
The PDC Series 22 Combustion Valve is a cost effective, manual, wafer style butterfly valve designed for use in low pressure, low cycle (“set -and-forget”) applications. It is designed for use in temperatures up to 900°F Maximum with differential pressures not to exceed 1 PSIG. The valve is designed with appropriate clearances in the disc for combustion installations. These applications are typically :”Hot” or “Cold” lines of air or combustible gases that require High-Low or Modulating flow control.
Specifications
Size Range:
2" thru 14" for 125/150 lb. Flanging
Pressure Rating:
2 PSI (.1 Bar) max
Shutoff Rating:
ANSI Class II
Body Style:
Wafer
Design Features
- Lightweight, solid ring, wafer design for ease of installation. Four holes to insure proper alignment without transfer of pipe stresses to the valve body.
- PDC’s Combination 10 Position/Infinite Throttling & Locking Lever Assembly offers both types of the most commonly requested manual actuators in one unit.
- Adjustable packing – Graphited TEFLON ® Braid for “Cold” (up to 450°F) applications – Graphited Glass Yarn Reinforced with Inconel Wire for “Hot” ( up to 900°F) applications.
- Valves can be repacked without removal from the line.
- Inboard bronze bushing on “Cold” (up to 450°F) applications and “metallized” carbon bushing on “Hot” (up to 900°F) applications are designed for long life, nonfreezing, low torque characteristics.
Applications
- Blower Equipment
- Compressor Equipment
- Boiler Equipment
- Environmental Systems
- V.A.C
- Industrial Process Furnaces
- Oil Gas/Refining
- Power Generation/Co-Generation
- Water & Sewage
- Stationary Engines
- Chemical Equipment
- Mining Equipment
- Gas Recovery Systems
Standard Materials and Seat Construction
| Cold (450°) | Hot (900°) | |
|---|---|---|
| Body: | Cast Iron | Cast Iron |
| Disc: | Carbon Iron | Carbon Iron |
| Shaft: | 416 Stainless Steel | 316 Stainless Steel |
| Seat: | Swing-thru, Paddle Disc | Swing-thru, Paddle Disc |
| Bushing: | Graphited Bronze | Metallized Carbon |
| Packing: | Graphited Teflon | Graphited Yarn Reinforced with Iconoly |
| Packing Nut: | Brass | 316 Stainless Steel |
Optional Materials and Seat Construction
| Body: | Cast Iron |
| Disc: | Cast Iron |
| Shaft: | 316 Stainless Steel |
| Seat: | Swing-thru |
| Bushing: | Metcar |
| Packing: | High Temp Packing |
| Packing Nut: | 316 Stainless Steel |
- Valve Body
- Valve Disc
- Power End Shaft
- Inboard Bushing
- Packing
- Packing Nut
- Pin
- Pipe plug
Chart or Graph
Dimensions
| VALVE SIZE | Valve Related Dimensions | |||||
|---|---|---|---|---|---|---|
| Assembly Number | A | B | C | D | E | |
| 2” |
221-017-000-ZZ |
2 |
2-3/4 |
5-3/8 |
1-1/2 |
3-7/8 |
| 2.5” |
221-027-000-ZZ |
2-1/2 |
3 |
5-5/8 |
1-1/2 |
4-5/8 |
| 3” |
221-037-000-ZZ |
3 |
3-1/8 |
5-7/8 |
1-1/2 |
5-1/4 |
| 4” |
221-047-000-ZZ |
4 |
4-1/4 |
6-3/8 |
1-1/2 |
6-3/8 |
| 5” |
221-057-000-ZZ |
5 |
4-7/8 |
6-7/8 |
1-1/2 |
7-1/2 |
| 6” |
221-067-000-ZZ |
6 |
5-3/8 |
7-3/8 |
1-1/2 |
8-9/16 |
| 8” |
221-077-000-ZZ |
8 |
6-1/2 |
8-3/8 |
1-1/2 |
10-3/4 |
| 10” |
221-087-000-ZZ |
10 |
8 |
10-5/8 |
1-7/8 |
13 |
| 12” |
221-097-000-ZZ |
12 |
9-1/2 |
11-5/8 |
1-7/8 |
15-1/4 |
| 14” |
221-107-000-ZZ |
13-1/8 |
10-1/2 |
12-1/8 |
1-7/8 |
16-3/8 |
Cv Values
(Flow in GPM of 60°F water at 1 psi pressure drop, specific gravity=1)
| VALVE SIZE | DISC ANGLE, DEGREES | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | |
| 2” | 2 | 5 | 12 | 21 | 36 | 51 | 67 | 87 | 95 |
| 2.5” | 4 | 8 | 21 | 36 | 59 | 88 | 132 | 187 | 204 |
| 3” | 6 | 15 | 32 | 54 | 89 | 139 | 212 | 293 | 389 |
| 4” | 14 | 29 | 57 | 103 | 167 | 270 | 411 | 578 | 784 |
| 5” | 22 | 45 | 92 | 166 | 278 | 450 | 668 | 959 | 1,336 |
| 6” | 32 | 66 | 132 | 239 | 401 | 664 | 1,003 | 1,439 | 2,099 |
| 8” | 56 | 117 | 236 | 426 | 714 | 1,181 | 1,783 | 2,721 | 4,046 |
| 10” | 87 | 183 | 369 | 667 | 1,116 | 1,847 | 2,788 | 4,255 | 6,679 |
| 12” | 126 | 265 | 531 | 960 | 1,608 | 2,660 | 4,017 | 6,127 | 9,622 |
| 14” | 150 | 317 | 636 | 1,151 | 1,927 | 3,187 | 4,813 | 7,342 | 11,530 |
Materials of Construction
| 450° F Service | 900° F Service | |
|---|---|---|
| Components | ZZ=00 | ZZ=28 |
| Body: | Cast Iron | Cast Iron |
| Disc: | Carbon Iron | Carbon Iron |
| Shaft: | 416 Stainless Steel | 316 Stainless Steel |
| Bushing: | Graphited Bronze | Metcar |
| Packing: | Graphited Teflon | High Tempaerature |
| Packing Nut: | Brass | 316 Stainless Steel |
