S4L & S3L Series 316 Stainless Steel Hand Lever Valves

Features & Key Specifications

Features & Key Specifications of Our Stainless Steel Hand Valves:

Full 316 Stainless Steel Construction:
From the body to the lever and spool, every major component is made from SS316 stainless steel, ensuring maximum resistance to rust, chemicals, and saltwater.

Extreme Temperature Performance (-30°C to 130°C):
Engineered to perform in the most demanding thermal conditions, this is a true high and low temperature manual valve, ideal for both freezing and high-heat applications.

High-Performance HNBR Seals:
Equipped with HNBR (Hydrogenated Nitrile) seals, which provide superior resistance to high temperatures, oils, and chemicals compared to standard NBR seals, ensuring a leak-free, long service life.

Complete Range of Manual Control Functions:
This versatile series includes 3/2 way models (S3L series) for single-acting cylinders, 5/2 way models (S4L series) for double-acting cylinders, and 5/3 way models for mid-position stopping and positioning.

Secure Detented (Locking) Action:
The robust lever features a positive detented mechanism, securely locking the valve into each position. This prevents accidental shifting and provides clear, confident control for the operator.

Lubrication-Free Operation:
Designed for clean, maintenance-free performance, these valves do not require additional lubrication.

Application Fields

The Superior Choice for Manual Control in Harsh Environments:

Food & Beverage Plants: Manually operating cylinders on equipment in hot processing areas, pasteurizers, industrial cookers, and cold storage zones.

Chemical Processing: Local, manual control of pneumatic systems where corrosive fumes and fluctuating temperatures are present.

Industrial Ovens, Furnaces & Freezers: A reliable control point for pneumatic components located in extreme temperature zones.

Marine & Offshore: A corrosion-proof manual valve that withstands extreme weather conditions on deck machinery and onboard systems.

Water Treatment Facilities: Resisting corrosion from chemical exposure in manual override applications.

Technical & Selection Guide

Why Upgrade to the S4L/S3L Stainless Steel Valve?

For Extreme Temperatures: If your operating environment is outside the range of a standard valve (typically 5°C to 60°C), the S4L/S3L's -30°C to 130°C capability is essential.

For Unmatched Durability: A standard aluminum hand valve will quickly corrode in a wet or chemical environment. A stainless steel hand lever valve with HNBR seals offers a service life that is orders of magnitude longer.

For Hygienic Compliance: For any food, beverage, or pharmaceutical application, stainless steel is the required material to prevent contamination and allow for proper sanitation.

FAQ

Frequently Asked Questions

Q: Does the lever lock in place?
A: Yes. This series features a detented (or locking) mechanism. The lever will click into position and stay there until it is manually moved again.

Q: What are HNBR seals? Why are they better?
A: HNBR is a special rubber compound that offers significantly better resistance to high temperatures and chemicals than standard NBR seals. They are a key component that enables this valve's 130°C temperature rating.

Q: What is the difference between the S3L, S4L, and S4L(230) series?
A: The function. The S3L is a 3/2 way valve (for single-acting cylinders). The S4L is a 5/2 way valve (for double-acting cylinders). The S4L230 models are 5/3 way valves (for positioning cylinders mid-stroke).