Présentation du produit

LeClapet anti-retour silencieux à ressort is a precision-engineered non-return valve designed for reliable backflow prevention in low-pressure and sensitive fluid systems. Featuring a stainless steel body and a spring-loaded poppet mechanism, this valve provides instant, silent closure with an exceptionally low cracking pressure—making it ideal for applications where even minimal backflow could compromise system integrity. The vertical mount design enables installation in tight spaces and vertical piping configurations where conventional swing check valves cannot be used. Manufactured from premium stainless steel with PTFE/RPTFE/PPL sealing options, this valve delivers excellent corrosion resistance, reliable sealing, and long service life across a wide temperature range from -40°C to +210°C. With 1/4″ NPT threaded connections and pressure ratings up to 800 WOG (PN63/1000 PSI), it is suitable for instrumentation, traitement chimique, traitement de l'eau, pharmaceutical, and analytical systems. CE certified and backed by OEM/ODM customization support, it is the trusted choice for engineers requiring reliable, low-pressure backflow protection.

Clapet anti-retour silencieux à ressort

Spécifications techniques

Clapet anti-retour silencieux à ressort

Principales fonctionnalités

1. Low Cracking Pressure – Minimal System Resistance
2. Silent Closure – No Water Hammer
3. Spring-Loaded Design – Instant Response
4. Premium Stainless Steel Construction – Corrosion Resistant
5. CE Certified – International Compliance

Working Principle

The spring-loaded silent check valve operates through a simple yet highly effective mechanism:

• 1. Forward Flow (Valve Open): Upstream fluid pressure exceeds the spring force, lifting the poppet off the seat. The poppet lifts vertically, allowing flow to pass through the valve with minimal pressure drop.
• 2. Reverse Flow (Valve Closed): When flow stops or reverses, downstream pressure and spring force immediately push the poppet back onto the seat. The spring ensures instant, positive seating before reverse flow can occur.
• 3. Silent Closure: The spring-assisted design eliminates slamming and water hammer, ensuring quiet operation even under rapid flow changes.

Clapet anti-retour silencieux à ressort

Applications

1. Instrumentation & Analytical Systems
2. Chimique & Pharmaceutical Dosing
3. Traitement de l'eau & Purification
4. Pneumatic & Hydraulic Systems

Emballage et expédition

L'emballage dépend du type de produit et de la quantité. Options include carton boxes with proper protection for threaded ends. L'expédition peut être organisée par voie maritime, chemin de fer, air, ou selon la demande du client.

Profil de l'entreprise

Luoyang Datang Energy Tech Co., Ltée est un fournisseur professionnel de vannes industrielles, dedicated to providing reliable flow control solutions for instrumentation, chimique, pharmaceutical, traitement de l'eau, et systèmes de tuyauterie industrielle dans le monde entier. All products are manufactured to international standards with CE and ISO 9001 attestations. Avec plus 10 années d'expérience, une installation moderne de 80,000 m², et 200+ employés professionnels, nous servons les clients dans 10+ pays avec des produits de qualité, prix compétitif, et livraison fiable.

Clapet anti-retour silencieux à ressort

Conditions de paiement

T/T, L/C à vue, Western union, Paypal, Apple Payer, Google Payer, Carte de crédit, etc..

FAQ

T1: What is the difference between a low-cracking-pressure check valve and a standard check valve?

UN: Low-cracking-pressure check valves feature a precision spring-loaded poppet design with a very low cracking pressure (typically 0.5–2 psi), making them suitable for low-differential-pressure systems. Standard check valves (such as swing check valves) may require higher pressure to open. Low-cracking-pressure check valves are particularly well-suited for gravity-flow lines, low-pressure systems, and sensitive instrumentation.

T2: Must spring-loaded check valves be installed vertically?

UN: Spring-loaded check valves can be installed in any orientation—horizontal, vertical (upward or downward), or inclined. The spring force ensures the poppet reseats instantly when flow stops or reverses, independent of gravity. En revanche, swing check valves must be installed horizontally.

T3: Can this valve be used for vertical downward flow?

UN: Oui. The spring-loaded design ensures reliable operation even with vertical downward flow; the spring force causes the poppet to close immediately when flow stops, unaffected by gravity. This is not possible with traditional swing check valves.

T4: What applications is this valve suitable for?

UN: It is suitable for applications requiring low pressure drop, silent operation, and reliable backflow protection, including instrumentation and analytical systems, chemical dosing, traitement de l'eau, pneumatic and hydraulic control circuits, and pharmaceutical production lines.

Clapet anti-retour silencieux à ressort