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PPH DIALOCK 2-WAY DIAPHRAGM VALVE

PPH DIALOCK 2 WAY DIAPHRAGM VALVE SUPPLIER

PPH Dialog 2 Way Diaphragm Valve Use to control and shut off dirty or scratched substances. The redesigned internal shape of the body increases the flow coefficient and pressure drop, allowing for delicate, precise shutter adjustments over the entire stroke. The valve is quite small and lightweight. There is an ergonomic and quick locking feature on the handwheel, allowing the handwheel to be moved and secured in any position.

Many different materials, body styles and diaphragms can be used with this PPH Dialog 2 Way Diaphragm Valve. Wear-style body re-design improves flow rate and allows precise linear flow regulation throughout the valve’s full range of operation. A variety of options and accessories are available with this pneumatically operated version.

This increases the flow rate. In addition, the PPH Dialog 2 Way Diaphragm Valve allows for precise linear flow control. Through the use of its locking mechanism, the handwheel can be turned and secured in over 300 locations.

The DK DIALOCK® diaphragm valve is particularly suitable for shutting off and regulating abrasive or dirty fluids. The new internal geometry of the body increases flow coefficient, reduce pressure drop and allows a sensitive and precise adjustment along the entire stroke of the shutter. The DK is extremely compact and very light. The innovative handwheel is equipped with a patented immediate and ergonomic operating locking device that allows it to be adjusted and locked in any position.

• Connection system for solvent weld, threaded and flanged joints
• Optimised fluid dynamic design: maximum output flow rate thanks to the

optimised efficiency of the fluid dynamics that characterise the new inter-
nal geometry of the body

• Internal components in metal, totally isolated from the fluid and external
environment
• Modularity of the range: only 2 handwheel and 4 diaphragm and bonnet
sizes for 7 different valve sizes
• Non-rising handwheel that stays at the same height during rotation,
equipped with a graduated optical indicator protected by a transparent
PVC cap with seal O-Ring
• Bonnet fastening screws in stainless steel protected against the external
environment by PE plugs. Absence of metal parts exposed to the external
environment to prevent any risk of corrosion.
• CDSA (Circular Diaphragm Sealing Angle) system that, thanks to the
uniform distribution of shutter pressure on the diaphragm seal, offers the
following advantages:
− reduction in the tightening torque of the screws 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 deposits, contamination or damage to
the diaphragm due to crystallisation
− operating torque reduction

Technical specifications
Construction Diaphragm valve with maximized flow rate and
DIALOCK® lockable handwheel
Size range DN 15 ÷ 65
Nominal pressure PN 10 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. Can be
coupled to pipes according to EN ISO 1452, EN ISO
15493, DIN 8062, NF T54-016, ASTM D 1785.
Thread: ISO 228-1, DIN 2999, ASTM D 2464.
Flanging system: ISO 7005-1, EN ISO 1452, EN ISO
15493, EN 558-1, DIN 2501, ANSI B.16.5 cl. 150, JIS B
2220.
Reference standards Construction criteria: EN ISO 16138, EN ISO 1452, EN
ISO 15493
Test methods and requirements: ISO 9393
Installation criteria: DVS 2204, DVS 2221, UNI 11242
Valve material Body: PVC-U
Bonnet and handwheel: PP-GR
Position indicator cap: PVC
Seal material EPDM, FKM, PTFE
Control options Manual control; pneumatic actuator

BUTTERFLY 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 15 20 25 32 40 50 65
Kv100 l/min 112 261 445 550 1087 1648 1600

RELATIVE FLOW COEFFICIENT GRAPH

The relative flow coefficient is the flow rate through the valve as a function of the degree of valve opening. Horizontal axis: Percentage opening
of the disk Vertical axis: Relative flow coeffi-cient

DKUIV

Hand operated Butterfly valve

d DN PN B B1 E H H1 La R1 Z g EPDMcode FKMcode PTFEcode
20 15 10 102 25 41 129 80 90 1″ 100 500 DKUIV020E DKUIV020F DKUIV020P
25 20 10 105 30 50 154 80 108 1″1/4 116 562 DKUIV025E DKUIV025F DKUIV025P
32 25 10 114 33 58 168 80 116 1″1/2 124 790 DKUIV032E DKUIV032F DKUIV032P
40 32 10 119 30 72 192 80 134 2″ 140 916 DKUIV040E DKUIV040F DKUIV040P
50 40 10 149 35 79 222 120 154 2″1/4 160 1768 DKUIV050E DKUIV050F DKUIV050P
63 50 10 172 46 98 266 120 184 2″3/4 190 2668 DKUIV063E DKUIV063F DKUIV063P

DKOV

DIALOCK® diaphragm valve with flanged monolithic body, drilled PN10/16. Face to face
according to EN 558-1

d DN PN B B1 F f H H1 Sp U g EPDMcode FKMcode PTFEcode
20 15 10 102 25 65 14 130 80 4 13.5 925 DKOV020E DKOV020F DKOV020P
25 20 10 105 30 75 14 150 80 4 13.5 990 DKOV025E DKOV025F DKOV025P
32 25 10 114 33 85 14 160 80 4 13.5 1054 DKOV032E DKOV032F DKOV032P
40 32 10 119 30 100 18 180 80 4 14 1272 DKOV040E DKOV040F DKOV040P
50 40 10 149 35 110 18 200 120 4 16 2164 DKOV050E DKOV050F DKOV050P
63 50 10 172 46 125 18 230 120 4 16 3009 DKOV063E DKOV063F DKOV063P
75 65 10 172 46 145 18 290 120 4 21 3610 DKOV075E DKOV075F DKOV075P

EXPLODED VIEW

DN 15 20 25 32 40 50 65
A 40 40 46 46 65 78 78
B 44 44 54 54 70 82 82
  • 1 Transparent protection cap(PVC – 1)*
  • 2 Customisation plate (PVC-U – 1)
  • 3 O-Ring (EPDM – 1)
  • 4 Operating mechanism (PP-GR /PVDF – 1)
  • 5 Threaded stem – Indicator(STAINLESS steel – 1)
  • 6 Compressor (PA-GR IXEF® – 1)
  • 7 Diaphragm seal (EPDM, FKM,PTFE – 1)*
  • 8 Valve body (PVC-U – 1)*
  • 9 Socket seal O-Ring (EPDM-FKM- 2)*
  • 10 End connector (PVC-U – 2)*
  • 11 Union nut (PVC-U – 2)*
  • 12 Washer (STAINLESS steel – 4)
  • 13 Bolt (STAINLESS steel – 4)
  • 14 Protection plug (PE – 4)
  • 15 Distance plate (PP-GR – 1)**
  • 16 Screw (STAINLESS steel – 2)**

* Spare parts
** Accessories
The material of the component and the quantity supplied are indicated in brackets

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