5" Flanged Diaphragm Valve, UPVC/ CPVC

$766.89

Low price 2 way PVC diaphragm valve comes with PTFE diaphragm and 5 inch (DN125) flanged port for liquid and flow control in water treatment, chemical processing, pharmaceuticals and other industries, available in UPVC and CPVC body material for your applications.

Body Material *

SKU: ATO-FDV-DN125

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Delivery date: 6-12 days

Overview

PVC diaphragm valve consists of a UPVC or CPVC body with an inlet and outlet and a diaphragm that separates these two ports. When the valve is in the closed position, the diaphragm seals against the body, preventing the flow of fluid.

Specification

Model	ATO-FDV-DN125
Size	5 inch (DN125)
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
5 inch (DN125)	UPVC	248	213	400	30	8-φ18
5 inch (DN125)	CPVC	248	213	400	28	8-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: Difference between a butterfly valve and a diaphragm valve

Butterfly valves and diaphragm valves are both types of flow control valves used in various industries. The primary difference lies in their design and operation:

Butterfly Valve:

A butterfly valve has a disc-shaped closure element that pivots around a central axis to control flow.
It operates by turning the disc 90 degrees to either fully open or close the flow passage.
Offers quick and efficient flow control with a low pressure drop.
Suitable for applications requiring on/off or throttling control, such as in HVAC systems and large water pipelines.
Relatively lower maintenance requirements and cost-effective.

Diaphragm Valve:

A diaphragm valve uses a flexible diaphragm or membrane to isolate the flow stream from the valve body.
It controls flow by compressing or retracting the diaphragm to allow or block fluid passage.
Ideal for applications requiring a high level of containment or purity, such as in the pharmaceutical and chemical industries.
Provides excellent sealing, preventing cross-contamination and leakage.
Generally more complex and expensive than butterfly valves, with higher maintenance requirements.

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