2-1/2" Flanged Diaphragm Valve, UPVC/ CPVC

$281.99

Flanged diaphragm valve with UPVC or CPVC body material, PTFE diaphragm, is used in water treatment, chemical processing, pharmaceuticals and other industries. ATO plastic diaphragm valve has 2-1/2 inch (DN65) flanged port for liquid and flow control.

Body Material *

SKU: ATO-FDV-DN65

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Delivery date: 6-12 days

Overview

ATO PVC diaphragm valve uses a flexible PTFE diaphragm that separates the valve's body from the flow path. This diaphragm is made of CPVC or UPVC which can withstand corrosive or acidic substances.

Specification

Model	ATO-FDV-DN65
Size	2-1/2 inch (DN65)
Structure Type	Flanged Type
Diaphragm Valve Assembly	Parts	Material
	Diaphragm	PTFE
	Film	EPDM
	Valve Body	UPVC, CPVC
	Valve Plate	UPVC, CPVC, Steel, Stainless Steel
	Cover Limit	AS
	Stud	Steel, Stainless Steel
	Retaining Nut	FRPP
	Washer	FRPP
	Wheel	Alloy Material
	Platen	Steel, Stainless Steel
	Double-Headed Stud and Nut	Steel, Stainless Steel
	Bonnet	UPVC, CPVC
	Yoke Nut	Ht300 Steel
	Stem	Steel, Stainless Steel

Dimension (Unit: mm)

Flanged PVC diaphragm valve dimension DN15 ~ DN100

Size	Valve Body Material	d	D	L	h	n-φ
2-1/2 inch (DN65)	UPVC	147	183	255	24	4-φ18
2-1/2 inch (DN65)	CPVC	147	182	257	24	4-φ18

Note: The above dimensions are for reference only, please refer to the actual product.

Detail

Flanged diaphragm valve detail

Working Pressure

Size	Working Pressure (MPa)
	UPVC			CPVC
	20~40℃	41~60℃	61~80℃	0~40℃	41~60℃	61~90℃
1/2" (DN15)	0.8	0.8	0.7	0.7	0.7	0.6
3/4" (DN20)	0.8	0.8	0.7	0.7	0.7	0.6
1" (DN25)	0.8	0.8	0.7	0.7	0.7	0.6
1-1/4" (DN32)	0.7	0.7	0.6	0.7	0.7	0.6
1-1/2" (DN40)	0.7	0.7	0.6	0.7	0.7	0.5
2" (DN50)	0.7	0.7	0.6	0.7	0.7	0.5
2-1/2" (DN65)	0.7	0.7	0.6	0.7	0.7	0.5
3" (DN80)	0.7	0.7	0.6	0.7	0.7	0.5
4" (DN100)	0.7	0.7	0.6	0.7	0.6	0.5
5" (DN125)	0.5	0.5	0.4	0.5	0.5	0.4
6" (DN150)	0.5	0.5	0.4	0.5	0.4	0.3
8" (DN200)	0.3	0.3	0.2	0.5	0.3	0.25
10" (DN250)	0.3	0.3	0.2	0.3	0.3	0.2

Tips: How does a diaphragm valve stop flow?

A diaphragm valve stops flow by using a flexible diaphragm, a membrane-like barrier, as the primary sealing element. When the valve is in the open position, the diaphragm is lifted, allowing fluid to pass through the valve. To stop the flow, the operator or actuator lowers the diaphragm, pressing it against the valve seat, creating a tight seal. This action effectively obstructs the flow path and prevents the passage of fluids or gases.

The diaphragm's flexibility and ability to conform to the seat surface make it an effective and reliable shut-off mechanism. Diaphragm valves are commonly used in applications where precise flow control and cleanliness are crucial, such as in the pharmaceutical, food and beverage, and water treatment industries. Their straightforward design and ease of maintenance make them a popular choice for various applications requiring flow isolation.

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