Vock 1/4"3/8" Pneumatic Diaphragm Valve Instrument Valve Shut off Valve

• Customization: Available
• Media: Gas
• Temperature: Ordinary Temperature
• Model NO.: WV4
• Actuator: Pneumatic
• Connection: Male Thread VCR Connector
• Material: Stainless Steel
• Structure: Global Diaphragm Valve
• Pressure: Low Pressure
• Flow Direction: Left Input,Right Output
• Function: Shut off
• Usage: on-off
• Standard: GB, ANSI
• Port Size: 1/4"
• Warranty: 1 Year
• Pneumatic Actuators Type Selection: Pneumatic Normally Closed, Pneumatic Normally Open
• Surface Roughness: Ep-Grade Ra0.13um,Ba-Grade Ra0.13um
• Application: Gas Industry
• Certificate: CE,RoHS,ISO9001
• Working Pressure: 150psig(10bar)
• Flow Coefficient: CV=0.27
• Internal Diameter: 0.16inch(4.1mm)
• Transport Package: Export Packing Standard
• Specification: single gross weight: 0.3kg
• Trademark: VOCK
• Origin: China
• HS Code: 8481804090
• Production Capacity: 40000pieces Per Year

Product Description

Package and delivery
Selling units:Single item
Single package size:10 x 10 x 10 cm
Single gross weight:0.3kg
Export packaging standard: double-layer plastic bag, vacuum inside, plastic packaging outside+white carton+cardboard box.

Specification

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 : Welded joints are cleaned in accordance with our standard cleaning and packaging specifications.

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

Model explanation
WV4-                  6L                               TW      -              4               MR                   4                             C       -                  A -                     EP

Product Model	Valve body material	Inlet types	Inlet dimension	Out let types	Out let dimension	Executor type	Valve seat	Clean Process
	6L-316Stainless steel 6LV-316LVAR 6LW-316LVIM-VAR	TW-Tube butt weld MR-VCRMale connector FR-VCR 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)

Features

Metal to metal seal provides leak-free service in vacuum to high pressure range

Small internal volume, can completely purge the flow path

Fully wrapped seat design, with superior anti-expansion and anti-pollution capabilities

Nickel-cobalt alloy diaphragm for higher durability and corrosion resistance

The standard roughness is Ra0.25μm(BA class) or electrolytically polished Ra0.13μm(EP class)

Helium test leakage rate <1×10^-9 mbar.l/s

Pneumatic executor s are available

Pneumatic valve life up to 3 million times

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:VOCK.

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.

Production strength
1. Clean workshop assembly
All products are completed in grade 100 and grade 1000 clean workshops, and 100% passed helium inspection seal test and functional test before leaving the factory.  
At present, Wofly has built a dust-free workshop with 100 levels (more than 100 m2) and 1,000 levels (more than 500 m2). The production team is composed of a young automated production team of 30 people. With the help of customized automated tooling and test equipment, the average output of valves can reach 4000 pieces per month.

2. Maching workshop 
Wofly's machining workshop has several CNC lathes, turning and milling compound and machining centers. Used for processing and producing spare parts such as valve body, nozzle, nut, plug, gasket, handle, coupling and so on. In addition, we are equipped with automatic deburring machines, ultrasonic cleaning machines and other peripheral equipment, which not only ensures the production efficiency of spare parts, but also improves the quality of spare parts. Spare parts are mainly used for pressure regulators, diaphragm valves,check valves,ball valves,needle valves,Tube fittings,ferrule connectors and VCR connectors.
The spare parts produced by machining have the advantages of high precision, high efficiency, high material utilization rate and strong stability, which is helpful to improve product quality, reduce production cost and meet customer needs.