High Pressure Manual Shut off Valve Diaphragm Valve 1/2"3/8"3500psi Ep-Grade

• Customization: Available
• Media: Gas
• Temperature: Ordinary Temperature
• Model NO.: WV8H manual
• Actuator: Manual
• Connection: Ferrules Connection
• Material: Stainless Steel
• Structure: Global Diaphragm Valve
• Pressure: High Pressure
• Flow Direction: Left Input,Right Output
• Function: Shut off Valve
• Usage: on-off
• Standard: GB, ANSI
• Port Size: 1/2",3/8"
• Warranty: 1 Year
• Surface Roughness: Ep-Grade Ra0.13um,Ba-Grade Ra0.13um
• Application: Gas Industry
• Certificate: CE,RoHS,ISO9001
• Working Pressure: 3500psig(241bar)
• Flow Coefficient: CV=0.8
• Working Temperature: -23degrees Celsius to +65degrees Celsius
• Product Standard: ASME B16.34
• Internal Diameter: 0.31inch(8.0mm)
• Port Type 1: Tube Butt Weld Connector,Female VCR Connector
• Port Type 2: Integral Male VCR Connector, Ferrule Connector
• 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

Detailed Photos

Product Description

Product Introduction
WV8H series High-pressure diaphragm valves are meticulously engineered for cutting-edge applications in the semiconductor, solar photovoltaic, laboratory fields, and beyond. Crafted to impeccably handle high-purity gases, these valves offer an unmatched on/off function to suit exacting requirements. With an impressive maximum working pressure, they are pivotal to high-tech gas pipeline systems.-pressure manual diaphragm valve is 3500psi(241bar), these valves deliver a robust performance.

Each diaphragm valve undergoes rigorous 100% helium leak detection and comprehensive functionality testing before it is shipped, ensuring absolute reliability and performance excellence.
 

Features

Metal to metal seal, no packing.

Suitable for high flow application.

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

Product Parameters

Specification

Technical data

Port Dimension : 1/2'' ,3/8"

Flow coefficient :Cv=0.8

Maximum working pressure

Manual : 241bar(3500psig)  Pneumatic: 206bar(3000psig)

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

Working temperature

PCTFE:-23~+65ºC(-10~+150°F)  Vespel:-23~150ºC (-10~302°F)

Surface roughness:standard Surface roughness is Ra0.25um,BA-grade product.EP-grade product is optional,Surface roughness is Ra0.13um.

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
WV8H- 6L TW - 8 MR 8 C - V - 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-VCR Male connector FR-VCR Female connector TF-Fractional Ferrules	6-3/8" 8-1/2"	Sameasinlet Marking method same asinlet		Handle C-Pneumatic Nomallyclosed O-Pneumatic Normally Open	PCTFE V-Vespel	Standard(BA-grade) EP-Ultra high-purity(EP-grade)

Flow Rate Data

Air@21ºC(70F)                                         Water@16ºC(60F)
Pressure drop at maximum atmospheric pressure bar(psig	Air (l/min)	Water (I/min)
0.68  (10)	274	9.5
3.4  (50)	733	21.5
6.8  (100)	1300	30.3

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: Our packaging solution includes a double-layer plastic bag encased in vacuum, wrapped in durable plastic, shielded by a pristine white carton, and finally secured in a robust cardboard box.

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.

Our Advantages

Production Strength

1. Clean Workshop Assembly
Every product is assembled in state-of-the-art grade 100 and grade 1000 clean workshops, ensuring pristine quality. They all pass stringent helium inspection seal tests and functional assessments before leaving our facility.
Currently, Wofly boasts a dust-free production environment with 100 levels (exceeding 100 m2) and 1,000 levels (over 500 m2). Our dynamic production team of 30, specializing in automation, leverages custom automated tooling and testing equipment, achieving an impressive monthly valve output of 4,000 pieces.
2. Machining Workshop
Wofly's machining workshop is equipped with cutting-edge CNC lathes, turning and milling stations, and comprehensive machining centers. These are essential for crafting a wide array of parts such as valve bodies, nozzles, nuts, plugs, gaskets, handles, and more. Enhanced by automatic deburring and ultrasonic cleaning machines, our workshop ensures superior quality and production efficacy for spare parts, particularly for pressure regulators, diaphragm valves, check valves, ball valves, needle valves, tube fittings, ferrule connectors, and VCR connectors.
The spare components produced here stand out for their exceptional precision, efficiency, and stability, significantly boosting product quality, minimizing production costs, and perfectly aligning with customer expectations.

Certifications