SS4MA Series 316 Stainless Steel 5-Way NAMUR Air Control Valves

The SS4MA Series is engineered to provide the ultimate in safe, non-electrical actuator control for the most extreme industrial environments. Constructed entirely from 316 stainless steel, these 5-way NAMUR air control valves are the premier choice for controlling double-acting actuators in the food, pharmaceutical, and chemical industries. With an exceptionally wide operating temperature range from -30°C to 130°C, they combine hygienic, corrosion-resistant properties with the intrinsic safety of air actuation, making them perfect for washdown zones, high-heat applications, and corrosive atmospheres.
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Product Introducing:


Features & Key Specifications

Features & Key Specifications of Our SS4MA Series:

Premium 316 Stainless Steel Body:
The valve body is machined from solid SS316 stainless steel, offering maximum durability and resistance to corrosive chemicals, cleaning agents, and saline environments.

Extreme Temperature Performance (-30°C to 130°C):
Designed to operate flawlessly in a vast temperature range, this high temperature NAMUR air valve is ideal for use in everything from cold storage and refrigerated transport to industrial ovens and hot processing lines.

Safe, Non-Electrical Air Actuation:
As a non-electrical NAMUR valve, it provides a secure control method in areas where electrical components are not permitted or desired, operating effectively within a pressure range of 0.2 to 0.8 MPa.

Dedicated 5-Way Control for Double-Acting Actuators:
The 5-way function provides two distinct outlet ports, offering the full functionality required to control the extend and retract strokes of double-acting actuators.

Direct NAMUR Mounting Interface:
Fully compliant with the VDI/VDE 3845 (NAMUR) standard, this valve bolts directly onto the actuator, ensuring a secure, leak-free connection and simplifying installation.


Application Fields

Critical for Safe Control in Harsh Environments:

Food & Beverage Processing: Controlling actuators in both refrigerated and high-temperature (e.g., steam cleaning, hot-fill) areas where washdowns are frequent.

Pharmaceutical Manufacturing: Used in cleanrooms for controlling actuators where non-sparking components and extreme temperature resistance are essential.

Chemical Plants: A durable, corrosion-resistant valve for controlling processes in fluctuating ambient temperatures.

Industrial Ovens & Furnaces: Controlling pneumatic components located in high-temperature zones up to 130°C.

Marine & Offshore: Safe and reliable control in saltwater environments with exposure to extreme weather conditions.


Technical & Selection Guide

When is the SS4MA the Right Choice?

The SS4MA is a highly specialized valve. Select it when your application meets these criteria:

You need to control a DOUBLE-ACTING cylinder. (This requires a 5-way valve).

The environment is CORROSIVE, HYGIENIC, or has EXTREME TEMPERATURES. (This requires 316 stainless steel and a high-temp design).

The area requires NON-ELECTRICAL control. (This requires an air pilot valve).

If your application meets these conditions, the SS4MA is the perfect, purpose-built solution.


FAQ

Frequently Asked questions

Q: What is the difference between an SS4MA (air pilot) and an SS4M (solenoid) NAMUR valve?
A: The control method. The SS4MA is an air pilot valve, controlled by an air signal for non-electrical applications. The SS4M is a solenoid valve, controlled by an electric signal.

Q: Can this valve really be used at -30°C?
A: Yes. The valve is constructed with materials, including high-performance seals, that are rated to perform reliably in freezing conditions down to -30°C (-22°F).

Q: Why would I use this instead of a standard aluminum air pilot NAMUR valve?
A: You must upgrade to the SS4MA's 316 stainless steel body when the environment involves frequent washdowns, corrosive chemicals, saltwater, or requires hygienic, food-grade materials.


Specifications

Working Medium40 Micro Filtered Clean Air
Acting TypeInternal Pilot
Working Pressure0.2-0.8 MPa
Guranteed pressure1.2 Pa
Working Temperature-30~130°C
Voltage Range±10%
Power ConsuPtionAC: 4.5VA ; DC:3W
Insulation ClassClass F
Ingress ProtectionIP65
Max. Acting Frequency4 cycles/second (no load)
Activate Time0.25 second (no load)
Valve Body MaterialSS316


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About Us
Ningbo Pneutech Automation Co., Ltd.
Ningbo Pneutech Automation Co., Ltd.
Specializes in pneumatic components and automation solutions.Head quartered in Ningbo, China, We lever age 10 years of industry experience to provide high-quality cost-effective products and technical support to global clients. We offer a wide range of products including solenoid valves, air treatment units, fittings & tubing andautomation accessories-Serving industries like packaging, textile food,pharmaceuticals,environment al protection, water treating.etc
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