DP4 – Piggable Valve
Piggable valves enable you to recover costly products out of product lines. Once the pig is forced through the line, the remaining product film on the inside of the product line can then be removed with much less CIP fluid which lowers the amount of wastewater, cleaning fluids and cleaning time. They are particularly well suited in processing viscous fluids.
FEATURES
High value, Low life cycle costs:
- Pig use enables valuable product recovery
- Pig use decreases downtime related to cleaning, and the costs associated with wastewater and CIP fluid
- Reduced inventory costs with same seal kit used on multiple size ranges such as one kit for 1.5” - 3.0” sizes
- Low air consumption and air supply requirements
- Leak drain with clamp connection for CIP fluid collection
- Long housing ports ease manifold building
Reliable performance:
- Design based on the proven D4SL model
- Long stroke for gentle product handling and low flow resistance
- Balanced design of lower shafts helps to prevent hydraulic blocking and enables flexible flow direction without slamming
- Heavy-duty bolted flange connection provides secure, controlled assembly/disassembly of valve insert
- No compressed air needed for removal and servicing
- Range of control units and bus communication for automated operation
Cleanability:
- Designed to the latest global hygienic standards
- Extensive cleaning of product contact seals via seat lifting of upper and lower shaft
- Cavity spray cleaning as standard
- Radial seal design provides minimal switching leakage
- External flushing of outside area of the lower shaft below the shaft seal
How do double seat piggable valves work?
Double seat piggable valves are used to safely process two different fluids efficiently (typically product and CIP) through the valve simultaneously. The DP4 mix proof design has two independently operating seats that separate the upper and lower pipeline when the valve is in the fail-safe closed position. The atmospheric vent cavity between the seats creates a path to exit through the leakage chamber should the seals fail, as well as a drain for CIP solution during seat cleaning. External CIP spray flush connections are included to provide enhanced cleaning of the leakage vent cavity as well as the lower shaft, while the valve is closed or open during production.
Product in Blue:
The lower and upper valve shafts are in closed position and safely separate the different liquids A and B. The leakage chamber L, which is situated between the two valve shafts, provides for a free and depressurized discharge to the drain housing. The lower valve shaft is balanced and, thereby, protected against pressure hammer.
Valve Open:
The middle seal in the upper valve shaft is pressed against the lower valve shaft by control of the actuator. First, the leakage chamber L is closed against the product chamber. Then the two valve shafts move downwards into the open position. The connection between pipelines A and B is established.
Food and Drink Processing
Soups & Sauces
Flavorings & Ingredients
Dressings, Vinegars
Soft/Fruit & Vegetable Drinks
Brewery, Wort, Wine
Pet Food
Fats & Oils, Animal Oils
Liquid Sugar
Cereals
Personal Care and Pharmaceutical Processing
Fluid Medicines
Extracts
Face Creams & Lotions
Perfumes
Soaps
High Purity Water
Nutritional Supplements
Hair Styling Gels & Liquids
Dyes & Alcohols
Chemical Processing
Solvents, Paints
Adhesives
Coatings
Oils & Lubricants
Detergents
Emulsions
Fuels
DIMENSIONS & SPECIFICATIONS
DP44 SL & DP42 SL
|
Dimensions in mm |
inst. dim. |
weights in kg with VPI |
|||||||||||
|
DN |
A1 |
B |
Ø C |
Ø Da |
Ø Di |
Ø Di drain |
Ø E |
F |
G |
H |
L |
X min. |
|
|
40 |
602,6 |
97 |
134 |
41 |
38 |
26 |
138,2 |
125 |
89,5 |
93 |
716,1 |
100 |
21,2 |
|
50 |
620,6 |
103 |
134 |
53 |
50 |
26 |
138,2 |
125 |
89,5 |
101,5 |
748,6 |
100 |
21,5 |
|
65 |
638,6 |
111 |
134 |
70 |
66 |
26 |
138,2 |
125 |
89,5 |
114,5 |
788,1 |
100 |
22,5 |
|
80 |
706,1 |
122,5 |
134 |
85 |
81 |
38 |
192,2 |
142,5 |
146,5 |
135 |
883,6 |
150 |
39,7 |
|
100 |
715,6 |
132 |
134 |
104 |
100 |
38 |
192,2 |
142,5 |
146,5 |
149,5 |
917,1 |
150 |
39,9 |
|
Inch |
|
||||||||||||
|
1,5" |
601 |
95,4 |
134 |
38,1 |
34,9 |
26 |
138,2 |
125 |
89,5 |
94,1 |
714,2 |
100 |
21,2 |
|
2" |
619,4 |
101,8 |
134 |
50,8 |
47,6 |
26 |
138,2 |
125 |
89,5 |
102,6 |
747,4 |
100 |
21,5 |
|
2,5" |
635,8 |
108,15 |
134 |
63,5 |
60,3 |
26 |
138,2 |
125 |
89,5 |
109,4 |
776,9 |
100 |
22,1 |
|
3" |
642,1 |
114,45 |
134 |
76,1 |
72,9 |
26 |
138,2 |
125 |
89,5 |
118,5 |
798,6 |
100 |
22,3 |
|
4" |
714,4 |
130,8 |
134 |
101,6 |
97,6 |
38 |
192,2 |
142,5 |
146,5 |
152 |
917,2 |
150 |
40 |
