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Residual Pressure Relief Valve, SMC Type Vhs20-01A Vhs20-02A, 1/8, 1/4, 3/8, 1/2, 3 /4, 1′′ NPT Port, Adjustable Pressure Release for Hydraulic/Pneumatic Systems (CE/ISO Certified)

Residual Pressure Relief Valve SMC Type 1/8 1/4′′ NPT Port Adjustable Pressure Release for Hydraulic/Pneumatic Systems (CE/ISO Certified)

Residual Pressure Relief Valve SMC Type 1/8 1/4′′ NPT Port Adjustable Pressure Release for Hydraulic/Pneumatic Systems (CE/ISO Certified)


Size:	VHS20-01A VHS20-02A
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The Residual Pressure Relief Valve is a critical safety component designed to automatically release residual pressure in hydraulic or pneumatic systems, ensuring operational safety and preventing equipment damage caused by overpressure. Ideal for industrial, automotive, and energy applications, this valve guarantees reliable pressure management in high-demand environments.

Applications:
Hydraulic Systems: Protects pumps, cylinders, and actuators from pressure spikes.
Pneumatic Compressors: Safeguards air tanks and lines in manufacturing and automotive systems.
Oil & Gas Pipelines: Prevents overpressure risks during shutdowns or maintenance.
Industrial Machinery: Ensures safety in presses, CNC machines, and robotic systems.

Model:
VHS20-01A
Brand:
WAALPC
Code:
8481400000

Product Description

Residual Pressure Relief Valve Product Advantages

VHS20Residual pressure relief valves

1. Enhanced Safety & Risk Mitigation

Automatically vents residual pressure post-system shutdown, eliminating hazards during maintenance or component replacement. Prevents accidental activation of equipment caused by trapped pressure.

2. Wide Compatibility & Versatility

Supports multiple port sizes (1/4", 3/8", 1/2") and thread standards (NPT, BSP) for seamless integration into existing pipelines. Suitable for hydraulic systems, compressed air lines, oil/gas pipelines, and industrial machinery.

3. Zero Residual Pressure Assurance

Ensures complete pressure drainage, protecting seals, hoses, and valves from stress damage. Reduces downtime by enabling safe and immediate maintenance.

Residual Pressure Relief Valve Applications

Industrial Production

Automation Equipment

Mechanical Equipment

Food Industry

Medical and Health Care

Electronic Industry

Textile Machinery

Packaging Machinery

Technical Parameters

Specifications

Model		VHS20	VHS30	VHS40	VHS40-06	VHS50
Working medium		Clean air (40um filteration)
Working temperature		-5 to 60℃ (No freezing)
Proof pressure		1.5Mpa
Working pressure range		0.1 to 1.0Mpa
Handle switching angle		90℃
Paint color (Standard)		Handel: Red, Body: White
Weight	A(Handle, bonnet: Flame resistant PBT)	76g	127g	247g	293g	532g
	B(Handel, bonnet: Aluminum)	92g	156g	301g	349g	630g

Option/Accessory Type

A spacer or spacer with bracket is required if the valve is combined with modular F.R.L. Please order it separately. VHS type can be ordered from How to Order of modular F.R.L. combination.

Pressure relief 3 port valve	Spacer part no.	Spacer with bracket part no.	Applicable air preparation equipment
VHS20	Y200-A	Y200T-A	AC20-A, B
VHS30	Y300-A	Y300T-A	AC25-A, B, AC30-A, B
VHS40	Y400-A	Y400T-A	AC40-A, B
VHS40-06	Y500-A	Y500T-A	AC40-06A, B
VHS50	Y600-A	Y600T-A	AC50-B, AC55-B, AC60-B

*New VHS series compatible with old spacer Y200(T) to Y600(T)

Flow rate characteristics

vhs flow rate characteristics

Main Dimensions

Specification Download

WAAL-VHS Series Pressure Relief 3 Port Valve with Locking Holes.pdf

Production Process

Air source treatment supplier

Packing∇ivery

FAQs

How do you ensure your product and service quality?

Provide customers with "high precision, high efficiency, high-quality" products is our mission. Every product is carefully tested before packing and shipping. Our team is always here for you to contact and discuss, any questions, just feel free to let us know.
What is your sample policy?

We can offer some models sample for free, it depends on the different product type, and freight cost charge by your side. Let's get chat if have any sample comments.
How can l make payment?

We accept T/T bank transfer, Western Union, L/C, Paypal etc.
What is your minimum order quantity?

All MOQ depends on the product. Please feel free to check with us for specific items.
What about delivery time?

It depends on the product and quantities, Normal model 3-5days, as we have ability to do in stock. It need about 10-15days for big order qty.
Do you accept OEM business?

Sure. we have done rich OEM/ODM service for many domestic and international market.
What about shipping?

We accept shipment by air or express, railway and sea shipping. It depends on your order qty or any requirement. We will help give support to provide applicable shipping way for you.
What's your main products?

We produce pneumatic components, air source processing devices, pneumatic control components, pneumatic actuators, solenoid valves, pneumatic accessories and other products.
How does your factory do quality control?

We always observe high quality control system strictly, base on ISO9001 quality control procedures, we observe international AQL standard inspection, from raw material inspection-semi finished product inspection-finished products inspection-testing inspection-packing inspection.
What to do if there is a problem with the product?

We will give quick response and analyse reason of any customer complaint,we usually make replacement to customers. And we can discuss more detail depend on different requirement.

Why choose us? What can we do for you?

♦ Founded in 2011 and professional experienced in the field of producing pneumatic products for over 13+ years.
♦ We have strong production capacity, over 100000 pcs/month.
♦We have rich experience for offering OEM/ODM service
♦ We have strict quality control process with quick response of after sales service.
♦ Management system certification : ISO9001,CE, ROHS
♦ We have 10+ technical experts for researching and developing.
♦ Sales network expands from domestic sales to all over the world.