Low Pressure Pneumatic Diaphragm Valve 1/4"3/8" Stainless Steel 316L

• Customization: Available
• Media: Gas
• Temperature: High Temperature
• Model NO.: WV4-Pneumatic
• Actuator: Pneumatic
• Connection: Male Thread VCR Connector
• Material: Stainless Steel
• Structure: Global Diaphragm Valve
• Pressure: Low Pressure
• Flow Direction: Left Input,Right Output
• Function: on-off
• Usage: Shut off
• Standard: GB, ANSI
• Port Size: 1/4inch,3/8inch
• Valve Body Material: SS316L
• Surface Roughness: Ep-Grade Ra0.13um,Ba-Grade Ra0.25um
• Max.Output Pressure: 250psi
• Pneumatic Actuators Type Selection: Pneumatic Normally Closed/Pneumatic Normally Open
• Internal Diameter: 0.16inch(4.1mm)
• Transport Package: Export Packing Standard
• Specification: single gross weight: 0.3kg
• Trademark: AFKLOK
• Origin: China
• HS Code: 8481804090
• Production Capacity: 40000pieces Per Year
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 0.350kg

Product Description

Packaging & Shipping

Package and delivery

Selling units:Single item
Single package size:10 x 10 x 10 cm
Single gross weight:0.35kg
Export packaging standard: double-layer plastic bag, vacuum inside, plastic packaging outside+white carton+cardboard box.
 

 

Product Parameters

 

Flow rate data                                                                                                    Air@21ºC(70°F)                                                                   Water @16ºC(70°F)
Pressure drop at maximum atmospheric pressure bar(psig)	Air (l/min)	Water (l/min)
0.68  (10)	86	3.2
3.4  (50)	230	7.2
6.8  (100)	410	10.2

Ordeing information

Basic Ordering No.	Connector types and  specification	Dimension in. (mm)
		A	B	C	L
W4-6L-TW4-	1/4"Tube butt weld	0.44(11.2)	0.53(13.6)	1.06(26.9)	2.13(54.0)
WV4-6L-TW6-	3/8"Tube butt weld	0.44(11.2)	0.83(21.1)	1.06(26.9)	2.72(69.0)
W4-6L-FR4-	1/4"FemaleVCR connector	0.44(11.2)	0.86(21.8)	1.06(26.9)	2.78(70.6)
W4-6L-MR4-	1/4"Integral male VCRconnector	0.44(11.2)	0.62(15.7)	1.06(26.9)	2.24(57.0)
W4-6L-TF4-	1/4"Ferruleconnector	0.44(11.2)	0.71(18.0)	1.06(26.9)	2.47(62.8)

Model explanation

Product Model	Valve body material	Inlet types	Inlet dimension	Out let types	Out let dimension	Executor type	Valve seat	Clean Process
	6L-316 Stainless steel 6LV-316LVAR 6LW-316LVIM-VAR	TW-Tube butt weld MR-VCR Male connector FRVCR Female connector TF-Fractional Ferules	4-1/4" 6-3/8"	Sameasinlet Marking method same asinlet		Handle C-Pneumatic Nomallyclosed O-Pneumatic Normally Open	PCTFE A-PFA	Standard(BA-grade) EP-Ultra high-purity(EP-grade)

Installation Instructions

Technical data

Port Dimension : 1/4'' ,3/8''

Flow coefficient :Cv=0.27

Internal diameter (id) : 0.16in.(4.1mm)

Maximum working pressure

Manual : 20bar(300psig)  Pneumatic: 10bar(150psig)

Pneumatic actuator working pressure :4.2~6.2bar(60~90psig)

Working temperature

PCTFE:-23~65ºC(-10~150°F)

PFA:-23~150ºC (-10~302°F)

Leakage rate (Helium)

 Inside : ≤1×10^-9 mbar.l/s

 Outside : ≤1×10^-9 mbar.l/s

Clean process

BA-grade : Welded joints and valves are cleaned in accordance with our standard cleaning and packaging specifications.

EP-grade : Provides controlled surface finish, electrolytic polishing Ra0.13μm, ultrasonic cleaning with deionized water. To order, add the suffix -EP to the order number

Product Description

Features

1. Metal to metal seal provides leak-free service in vacuum to high pressure range.
2. Small internal volume, can completely purge the flow path.
3. Fully wrapped seat design, with superior anti-expansion and anti-pollution capabilities.
4. Nickel-cobalt alloy diaphragm for higher durability and corrosion resistance.
5. The standard roughness is Ra0.25μm(BA-class) or electrolytically polished Ra0.13μm(EP-class).
6. Helium test leakage rate <1×10^-9 mbar.l/s.
7. Pneumatic actuators are available.Actuator type can be selected as handle, normally open or normally closed.
8. Pneumatic valve life up to 3 million times.

Our Advantages

1. Clean workshop assembly

All products have been assembled in class 100 and class 1000 clean workshops, and 100% of them have passed the helium seal test and functional test before leaving the factory.
At present, Wofly has built class 100 (over 100m2) and class 1000 (over 500m2) dust-free workshops.
Class 100 clean workshop: Class 100 clean workshop is the workshop with the highest cleanliness, which is suitable for the production of products that require extremely high air cleanliness, such as integrated circuits and high-precision optical devices. In a class 100 clean workshop, the number of dust particles and microorganisms with a diameter greater than 0.5µm per cubic unit of air shall not exceed 100. 
Class 1000 clean workshop:Class 1000 clean workshop is suitable for the production of products that require high air cleanliness, such as medical devices and medicines. In a class 1000 clean workshop, the number of dust particles and microorganisms with a diameter greater than 0.5µm per cubic unit of air shall not exceed 1000.
2. Production strength
Wofly is different from those companies whose spare parts are provided by suppliers and assembled by themselves. All the accessories of Wofly are produced by ourselves, with strict quality control and unified quality standards. Accurate and advanced equipment is adopted to ensure the accuracy and cleanliness requirements of products.

FAQ

FAQ

1. What's your payment ?

A:T/T,Western Union, Paypal, credit card and trade assurance on Made in China.

2. Where is there market for your factory?

A:Southeast Asia ,UNE,and America ,Europe.

3. Can you surpport OEM,ODM ?

A:Yes,we can.

4. Can you accept sample order and what is your MOQ?

A:All products are in stock, MOQ is 1 pcs, Generally according to the requirements of customers, no matter how many we can accept.

5. Which certificate do you have?

A:ISO9001,CE,RoHS.

6. What is your Brand?

A:AFKLOK.

7. What is your warranty?

A:1 year warranty.

8. Can after-sales service and technical consultation respond in time??

A:Technical services are available 24H/D.Our technical team can provide technical services for pre-sale, after-sale, installation and research and development of new products.

9. What is your delivery time(D/T)?

A:1~2 weeks.

10. Did you test all goods before delivery?

A:100% passed pressure and helium leak detection tests.

11. Do you have a patent for your invention?

A:Yes ,we have more than 40 patents, including 16 national patents.

12. What are your testing standards for your products?

A:Helium leakage rate reaches≤10-9mbarL/S, and fatigue life of pneumatic diaphragm valve reaches 400W times.

13. Which standard material Wofly choose ?

A:Material :
1. valve body:SEMI standard 316L rod, 316L VAR and 316L VIM-VAR are optional.
2. diaphragm strip:Hastelloy and nickel-cobalt alloy imported from the United States or Europe .
3. valve seat:PCTFE, PFA.
14. How to manage and control produce process ?
A: 1. Wofly strictly obeys ISO9001-2015 quality management system.
2.The ultrasonic cleaning, welding, assembly, testing and packaging of the valve are completed in the clean workshop.
3.Each process is monitored, tested and recorded by the quality Department specialist to ensure the reliability of each process index.