Imported high-quality DMS sampler spring 3-way automatic reset valve(Fail safe release to close)Stainless steel samplers support customization, providing a competitive advantage!

advantage

1. By using this three-way automatic reset valve, the valve can be ensured to close with the help of a spring.

2. The sampler remains closed at all times.

feature

1. The dual valve mechanical system (DMS) is suitable for three-way valves of 1/4 inch, 3/8 inch, and 1/2 inch, as well as other sampling system equipment.

2. Using a mechanical system to ensure valve closure through springs; With this system, it can be ensured that the sampler remains closed at all times.

3. The dual valve mechanical system (DMS) is suitable for three-way valves and other sampling system equipment of 1/4 inch, 3/8 inch, and 1/2 inch to ensure operational safety.

4. The operator must move the joystick to the desired position ("bypass" or "sampling") and continuously apply force to maintain that position.

5. After the sampling is completed, release the control lever and the system will return to the closed state, thus avoiding problems caused by the system being in the open state due to negligence.

(Note: "DMS" in the text is an abbreviation for "Dual Valve Mechanical System", which is a common component used in sampling systems to ensure valve opening and closing safety. The industry standard translation is used here.); The size units "1/4", "3/8", "1/2" all retain the inch symbol "", which conforms to the expression habits of industrial equipment documents; By pass "is translated as" bypass "in industrial fluid systems, referring to the state in which fluid flows directly without passing through the sampling process. ）

The product information and requirements for the "DMS sampler spring automatic reset handle valve (fail safe release closed, fully imported quality)", combined with the general characteristics of this type of imported sampling valve, are as follows:Safe usage methodandTypical application scenariosTwo aspects are explained to help you standardize operations and avoid risks:

1、 Safe usage method (core principle: relying on the "fail safe release close" feature and strengthening operational norms)

The core safety design of this valve is "spring automatic reset+release to close", which means that the valve automatically cuts off the fluid after the handle is released. A safety operation process should be developed around this feature, and attention should be paid to details in combination with the precision of imported valves:

1. Before operation: Confirm the status and environment, eliminate basic risks

• Valve status inspection① Observe whether the handle is in the "natural reset closed" state (when not manually pulled, the handle should fit the valve body closed label). If the handle is stuck or unable to reset automatically, it should be stopped immediately (possibly due to spring failure or internal blockage, the inlet valve needs to be repaired by professional personnel and should not be disassembled by oneself); ② Check for leaks (such as fluid residue and abnormal noise) at the valve body and interface, and replace the sealing gasket/ring (imported valves are mostly made of specialized materials such as PTFE and fluororubber) with the same model of accessories in a timely manner if they age, to avoid mixing domestic substitute parts and causing seal failure.

• Fluid and working condition matchingConfirm the applicability of the valveFluid type (such as gas, liquid, corrosive medium), temperature range (such as -20 ℃~150 ℃, please refer to the product manual), pressure rating (such as PN16, Class 150)It is strictly prohibited to use valves that are only suitable for neutral liquids in strong acid environments, as it may cause corrosion and rupture of the valve body.

• Personal protection preparationWear protective equipment according to the characteristics of the fluid, such as acid and alkali resistant gloves and goggles when in contact with toxic/corrosive media; Wear shock resistant clothing when operating high-pressure sampling to avoid injury from fluid jets.

During operation, follow the principle of "short-term control" and use the reset function to prevent misoperation

• Handle operation specifications① Sampling is requiredContinuously hold the handle to keep the valve open(As it will close upon release, to avoid accidental release during one handed operation that may cause sampling interruption or fluid residue), the operating force should be uniform, and violent pulling should be avoided (the imported valve handle transmission mechanism is precise, excessive force may damage the reset spring); ② The opening/closing process should be carried out slowly, especially under high-pressure conditions, to avoid sudden changes in fluid flow velocity that may cause a "water hammer effect" and impact the valve body or sampling pipeline (which may lead to loose interfaces and leaks).

• Sampling process controlFirstly, open the pre valve (such as the shut-off valve) of the sampling pipeline, and then turn the reset valve to avoid the valve body directly bearing the instantaneous high pressure of the pipeline; ② After sampling is completed, slowly release the handle to allow the valve to automatically close, then close the front valve, and finally empty the residual fluid in the sampling pipeline (to prevent fluid retention from causing corrosion or crystal blockage inside the valve body).

3. After operation: maintenance and emergency response to ensure long-term safety

• routine maintenance① Regularly (e.g. monthly) check the spring reset function: turn the handle to the open position and release it to observe if it closes immediately and smoothly. If there is a delay or jamming, clean the inside of the valve body (using the recommended cleaning agent in the product manual to avoid corroding the seals); ② Before long-term use, rinse the inside of the valve body with clean water (or compatible cleaning solution), dry it, and store it in a dry, non corrosive environment to prevent the spring from getting damp and rusting.

• emergency responseIf there is a leak during operation, it is necessary toImmediately release and close the valve(Using the fail safe feature to cut off the fluid), check the leakage point after the pressure is relieved (if the interface is loose, it can be re tightened, and if the sealing gasket is damaged, it needs to be replaced); If the leakage cannot be controlled, it is necessary to close the main valve of the entire sampling system, contact professional maintenance personnel for handling, and prohibit forced operation in a leaking state.

2、 Typical application scenarios (based on the adaptation field of "fully imported quality+safety reset design")

This type of imported spring automatic reset handle valve is particularly suitable for scenarios with strict requirements for "fluid leakage risk control" due to its strong sealing and high safety redundancy (release to close). Common applications include:

1. Chemical and petrochemical industries: Sampling of hazardous media

• Applicable scenarios: Chemical productionToxic, flammable, and corrosive mediaSampling of substances such as methanol, hydrochloric acid, and benzene, such as detection of fluid composition at the outlet of reaction vessels and monitoring of pipeline medium concentration.

• Adaptation reason: The imported valve body material (usually 316L stainless steel, Hastelloy) has strong corrosion resistance and can resist the erosion of chemical media; The "release and close" design can prevent operators from continuously leaking media due to accidents (such as hand fatigue or sudden situations), reducing the risk of poisoning and fire.

2. Pharmaceutical and Food Industry: Aseptic/Clean Sampling

• Applicable scenarios: Sampling of raw materials/semi-finished products for drug production (such as injections and oral medications), and microbiological testing sampling for food and beverages (such as dairy products and fruit juices).

• Reason for adaptation: The internal flow channel of the imported valve is smooth and free of corners, meeting the cleanliness requirements of GMP (Good Manufacturing Practice) or FDA (Food and Drug Administration), which can avoid cross contamination caused by fluid residue; The spring reset function can quickly cut off the fluid, reduce air contact time, and ensure the sterility of the sample.

3. Energy and Environmental Protection Industry: High Pressure/High Risk Fluid Monitoring

• Applicable scenarios: Sampling of crude oil from oil extraction wells, gas quality analysis of natural gas pipelines, or sampling of industrial wastewater (containing heavy metals and toxic organic compounds) in environmental monitoring.

• Adaptation reason: The fully imported valve body can withstand high pressure (such as up to 3000 PSI) and harsh working conditions (such as high temperature and dust). The "release and close" design can cope with the complex environment during field sampling (such as operators needing to take care of other equipment and avoid holding the handle for a long time), reducing the risk of high-pressure fluid spraying and injuring people.

4. Laboratory and Research Fields: Precision Sampling

• Applicable scenarios: Sampling of trace and high-purity media (such as chromatographic reagents and rare gases) in the laboratory, or precise control of fluid flow rate and composition in scientific research experiments.

• Reason for adaptation: The imported valve has high operating accuracy, the handle opening angle can be fine tuned, and the sampling flow rate can be controlled; The reset function is stable and can avoid sample contamination or experimental data deviation caused by human operation errors.

Imported high-quality DMS sampler spring 3-way automatic reset valve(Fail safe release to close)