PVDF Compact Diaphragm Valve
The PVDF compact diaphragm valve consist of a flexible disc that is sealed with a seat at the top of the valve body. It is excellent for use in restricted spaces.
Due to its widespread use in almost every industrial sector, the PVDF compact diaphragm valve is the most versatile of all valves. The main advantage is that only two parts, the valve body and the diaphragm, touch the active substance. The “Minimum Dead Leg” valve type of PVDF compact diaphragm valve is well known in the industry.
This Diaphragm Sealing System PVDF manufacturing of the compact diaphragm valves and pipe fittings. For industrial and ecological engineering as well as manufacturing industries, the wide material range makes it excellent for hostile media, scratch media and highly viscous media.
It has many other uses for PVDF compact diaphragm valves. It can be used in the manufacture of drinking and ultra-pure water used in microelectronics and semiconductor manufacturing.
PVDF Valves
PVDF Valves
PVDF Compact Diaphragm Valve Technical Information
The CM is a manually operated diaphragm valve of reduced dimensions and particularly compact structure, ideal for use in confined spaces.
• Connection system for solvent weld and threaded joints
• Extremely compact construction
• Internal operating components in metal totally isolated from the con-
veyed fluid
• Valve stem in STAINLESS steel
• Compressor with floating diaphragm support
• Easy to replace diaphragm seal
• Corrosion-proof internal components
• CDSA (Circular Diaphragm Sealing Angle) system offering the following
advantages:
− uniform distribution of shutter pressure on the diaphragm seal
− reduction in the tightening torque of the crews fixing the actuator to
the valve body
− reduced mechanical stress on all valve components (actuator, body and
diaphragm)
− easy to clean valve interior
− low risk of the accumulation of eposits, contamination or damage to
the diaphragm due to crystallisation
− operating torque reduction
| Technical specifications | |
|---|---|
| Construction | Compact single wear diaphragm valve |
| Size range | DN 12 ÷ 15 |
| Nominal pressure | PN 6 with water at 20 °C |
| Temperature range | 0 °C ÷ 60 °C |
| Coupling standards | Solvent welding: EN ISO 1452, EN ISO 15493, BS 4346-1, DIN 8063, NF T54-028, ASTM D 2467, JIS K 6743. Can be coupled to pipes according to EN ISO 1452, EN ISO 15493, DIN 8062, NF T54-016, ASTM D 1785, JIS K 6741. Thread: ISO 228-1, DIN 2999, ASTM D 2464, JIS B 0203. |
| Reference standards | Construction criteria: EN ISO 16138, EN ISO 1452, EN ISO 15493 Test methods and requirements: ISO 939 Installation criteria: DVS 2204, DVS 2221, UNI 11242 |
| Valve material | Body: PVC-U Bonnet and handwheel: PA – GR |
| Seal material | EPDM, FKM, PTFE |
| Control options | Manual control; pneumatic actuator |
COMPACT DIAPHRAGM VALVE
PRESSURE VARIATION ACCORDING TO TEMPERATURE
For water and non-hazardous fluids with regard to which the material is classified as CHEMICALLY RESIS-TANT. In other cases, a reduction of the nominal pressure PN is required(25 years with safety factor).
PRESSURE DROP GRAPH
KV 100 FLOW COEFFICIENT
The Kv 100 flow coefficient is the Q flow rate of litres per minute of water at a temperature of 20°C that will generate Δp= 1 bar pressure drop at a certain valve position. The Kv100 values shown in the table are calculated with the valve completely open.
| DN | 12 | 15 |
|---|---|---|
| Kv100l/min | 47 | 60 |
EXPLODED VIEW
- 1 Body (PVC-U – 1)
- 2 Diaphragm seal (EPDM, FKM,PTFE – 1)
- 5 Fastening screw (STAINLESSsteel – 4)
- 6 Washer (STAINLESS steel – 4)
- 7 Shutter (PA-GR – 1)
- 8 Nut (STAINLESS steel – 1)
- 9 Stem (STAINLESS steel – 1)
- 10 Bonnet (PA-GR – 1)
- 13 Nut (STAINLESS steel – 4)
- 14 Protection plug (POM – 4)
- 15 Optical position indicator(PVDF – 1)
- 22 O-Ring (NBR – 1)
- 23 Handwheel (PA-GR – 1)
- 24 O-Ring (NBR – 1)
- 25 Bonnet (PA-GR – 1)
- 26 Fastening screw (STAINLESSsteel – 1)
The material of the component and the quantity supplied are indicated between brackets
- 1 Handle insert (PVC-U – 1)
- 2 Handle (HIPVC – 1)
- 3 Stem O-rings (EPDM-FKM – 2)*
- 4 Stem (PVC-U – 1)
- 5 Ball seat (PTFE – 2)*
- 6 Ball (PVC-U – 1)
- 7 Body (PVC-U – 1)
- 8 Ball seat O-Rings (EPDM-FKM- 2)*
- 9 Radial seal O-Ring (EPDM-FKM- 1)*
- 10 Socket seal O-Ring (EPDM-FKM- 2)*
- 11 Ball seat carrier (PVC-U – 1)
- 12 End connector (PVC-U – 2)*
- 13 Union nut (PVC-U – 2)
- 14 Spring (STAINLESS steel – 1)**
- 15 Handle safety block (PP-GR -1)**
- 16 DUAL BLOCK® (POM – 1)
- 17 Threaded inserts (STAINLESS
- steel or Brass – 2)**
- 18 Distance plate (PP-GR – 1)**
- 19 Screw (STAINLESS steel – 2)**
* Spare parts
** Accessories
The component material and quantity supplied are indicated in the parentheses.
GET THE LATEST PVDF COMPACT DIAPHRAGM VALVE PRICES ON YOUR EMAIL