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Type P "Dish Shaped" Diaphragm

General Description

Type P DiaphragmThis diaphragm type, commonly referred to as dish-shaped, has a sidewall that slopes gradually from the cylinder to the piston. This diaphragm is designed to be flexed in both directions to its full height. It may be double-coated to take pressure in both directions. Due to its wide convolution and gradual sidewall slope, the total travel and ability to withstand high pressures are limited. The effective pressure also varies through its stroke.

 

Type P Figure 1

 

Dimensions and Tolerances


Inches mm Inches mm Inches mm Inches mm
Cylinder Diameter

1.00-2.50


25-64


2.51-4.00


64-102


4.01-8.00


102-205


8.01 & up


205 & up

Height
See available sizes table

Cylinder Diameter
Tolerances on Cylinder Diameter and Piston Diameter are ± 0.010" per inch (0.254 mm) of diameter but the tolerance will be no less than ± 0.010" (0.254 mm), or greater than ± .060" (1.52 mm)

Piston Diameter
Head & Flange Thickness
.017 ± .005


.43 ± .13


.024 ± .005


.61 ± .13


.035 ± .005


.89 ± .13


.045 ± .007


1.14 ± 0.18

Wall Gauge
.017 ± .005


.43 ± .13


.024 ± .005


.61 ± .13


.035 ± .005


.89 ± .13


.045 ± .007


1.14 ± 0.18

Flange Radius
.063


1.60


.094


2.39


.125


3.18


.125


3.18

Flange Diameter
Cyl. Diam. + 1.00


Cyl. Diam. + 25.40


Cyl. Diam. + 1.500


Cyl. Diam. + 38.10


Cyl. Diam. + 2.00


Cyl. Diam. + 50.80


Cyl. Diam. + 2.00


Cyl. Diam. + 50.80

 

Available Sizes


Dia•Com
Part No,
Cylinder
Diameter
Piston
Diameter
Height
Gauge
Approx.
Convolution
Width
Effective
Pressure
Area
Maximum
Half-Stroke
(Inches) (mm) (Inches) (mm) (Inches) (mm) (Inches) (mm) (Inches) (mm) (Inches) * (Inches) (mm)

P-106-16


1.06


27


1.00


25


0.16


4


.017


0.40


0.03


0.8


0.83


5.4


0.16


4.1


P-134-39


1.34


34


0.91


23


0.39


10


.017


0.40


0.22


5.5


0.99


6.4


0.39


9.9


P-144-40


1.44


37


0.69


18


0.40


10


.010


0.30


0.38


9.5


0.89


5.7


0.40


10.2


P-206-50


2.06


52


1.06


27


0.50


13


.060


1.50


0.50


12.7


1.91


12.3


0.50


12.7


P-250-50


2.50


64


1.50


38


0.50


13


.060


1.50


0.50


12.7


3.14


20.3


0.50


12.7


P-275-50


2.75


70


1.75


44


0.50


13


.060


1.50


0.50


12.7


3.97


25.6


0.50


12.7


P-275-53


2.75


70


1.75


44


0.53


13


.025


0.60


0.50


12.7


3.97


25.6


0.53


13.5


P-288-37


2.88


73


1.88


48


0.37


9


.030


0.80


0.50


12.7


4.45


28.7


0.37


9.4


P-300-50


3.00


76


2.00


51


0.50


13


.060


1.50


0.50


12.7


4.91


31.7


0.50


12.7


P-325-52


3.25


83


1.77


45


0.52


13


.025


0.60


0.74


18.8


4.95


31.9


0.52


13.2


P-400-57


4.00


102


3.00


76


0.57


14


.060


1.50


0.50


12.7


9.62


62.0


0.57


14.5


P-400-60


4.00


102


2.75


70


0.60


15


.025


0.60


0.63


15.9


8.94


57.7


0.60


15.2


P-797-62


7.97


202


6.22


158


0.62


16


.080


2.00


0.88


22.2


39.52


254.9


0.62


15.7


*Metric effective pressure area shown in square centimeters.

Contact us for Type P Diaphragms.

 

 

 

 

Dia•Com is a leading international provider of innovative, cost-effective molded diaphragm solutions critical to the operation of essential systems and equipment in industrial, automotive, aerospace, medical instrumentation, and food and water processing applications. The company's reputation for excellence is based on superior quality in the design, manufacture and application of its high-performance, state-of-the-art, fabric-reinforced and homogeneous elastomeric diaphragm seals.

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