Series CKM Self-Closing Thermoplastic Check Valves...
Patented Diaphragm Design Assures Dependable, Repetitive, Bubble-Tight Sealing... and They Can Be Mounted in Any Position!
![CKM Diaphragm Check Valves](ckm-photo.jpg)
Features/Benefits:
- Patented Design: Self-sealing - they are not dependent on gravity, mounting position or reverse flow, a significant improvement over ball check valves.
- Silent Operation: No internal sliding or loose parts to slam or vibrate, chattering is eliminated!
- Dependability: Leak-free sealing protects against the potential hazards created by reverse flow of corrosive liquids such as acids, caustics and chlorine solutions.
- Repetitive Long Term Sealing: Diaphragm automatically positions itself against seat in the identical location. Superior to ball check valves which often leak at lower pressures.
- Convenience: Union nut on Series CKM simplifies valve inspection/removal with minimum piping breakdown.
- Minimal Cracking Pressure: Diaphragm begins to open at approximately 1.0 to 1.5 PSI.
- Cost Efficient: Designed to improve system performance and competitively priced.
- Great Selection: Molded valves available in Geon® PVC, Kynar® PVDF, glass-filled Polypropylene, and now Corzan® CPVC. Series CK available in PTFE.
![](ckmanimate.gif)
This simple animation shows the valve starting in the normally closed position, opening, and then closing bubble tight with zero inlet pressure. Flow is from left to right.
Specifications:![ckmspec.gif](ckmspec.gif)
![CKM cut-away](ckm.gif)
Dimensions & Ordering Information:
![CK & CKM Dimension Drawing](ck-ckm-dimensions.gif)
PVC, CPVC, PP & PVDF body valve is Series CKM... |
Series CKM Pipe Size (NPT) | A | B | C | Model Number | IN. | mm |
IN. | mm | IN. | mm |
1/2" | 3.8 |
97 | 1.3 |
33 | 2.4 |
62 | CKM050V-PV |
3/4" | 4.1 |
105 |
1.6 |
39 |
2.8 |
72 |
CKM075V-PV | 1" |
4.7 |
120 |
1.9 |
48 |
2.8 |
72 |
CKM100V-PV |
CKM(series) 050(size) V(seal material) - PV(body material)
Part numbers shown are Viton seals with PVC bodies.
• For EPDM seals, change "V" to "EP" (CKM050EP-PV)
• For Kynar PVDF body, change "-PV" to "-PF" (CKM050V-PF)
• For Polypropylene body, change "-PV" to "-PP" (CKM050V-PP)
• For Corzan CPVC body, change "-PV" to "-CP" (CKM050V-CP)
Standard connections are threaded. For socket connection, add "S" after seal material (CKM050VS-PV) For spigot or other connection types, consult factory. |
PTFE body valve is Series CK...
| Series CK Pipe Size (NPT) |
A |
B |
C |
Model Number |
IN. |
mm |
IN. |
mm |
IN. |
mm |
3/4" |
3.6 |
92 |
1.9 |
48 |
3.0 |
76 |
CK075V-TF |
1" |
4.3 |
110 |
1.9 |
48 |
3.0 |
76 |
CK100V-TF |
CK(series) 050(size) V(seal material) - TF(body material) Part numbers shown have Viton seals.
• For EPDM seals, change "V" to "EP" (CK050EP-TF)
Threaded connections only. |
CAD Drawings:CKM050 (1/2") CKM075 (3/4") CKM100 (1")
Flow vs. Pressure Drop Performance:
Tested under laboratory conditions with FKM (Viton) diaphragm. Maximum flow will not be achieved until the valve is cycled approximately 20 times.
Catalog Page:For specifications and catalog page in .PDF format, please click here.
Installation: For detailed installation instructions, please click here.
Product News: April 2004: Series CKM is offered in Corzan CPVC. Corzan CPVC (chlorinated polyvinylchloride) offers many of the same advantages of grade 1/type 1 PVC, with additional service temperature range to 180ºF. Corzan is a well known brand of CPVC resin manufactured by Noveon, Inc. Series CKM in Corzan CPVC is available for threaded or socket installation, with Viton or EPDM diaphragm.
|