Panoramica del prodotto

ILValvola di ritegno silenziosa caricata a molla 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, tenuta affidabile, 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, lavorazione chimica, trattamento dell'acqua, farmaceutico, 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.

Valvola di ritegno silenziosa caricata a molla

Specifiche tecniche

Parametro	Specifica
Nome del prodotto	Valvola di ritegno silenziosa caricata a molla
Tipo di valvola	Spring Loaded Check Valve / Spring-Loaded Silent Check Valve
Materiale del corpo	SS304 / SS316 / CF8 / CF8M Stainless Steel
Materiale della guarnizione	PTFE / RPTFE / PPL
Tipo di connessione	Filettato (TNP)
Connection Size	1/4"NPT

Valvola di ritegno silenziosa caricata a molla

Caratteristiche principali

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. Certificato CE – Conformità internazionale

Principio di funzionamento

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.

Valvola di ritegno silenziosa caricata a molla

Applicazioni

1. Instrumentation & Analytical Systems
2. Chimico & Pharmaceutical Dosing
3. Trattamento delle acque & Purification
4. Pneumatico & Sistemi idraulici

Imballaggio e spedizione

L'imballaggio dipende dal tipo e dalla quantità del prodotto. Options include carton boxes with proper protection for threaded ends. La spedizione può essere organizzata via mare, ferrovia, aria, o secondo la richiesta del cliente.

Profilo Aziendale

Luoyang Datang Energy Tech Co., Ltd è un fornitore di valvole industriali professionali, dedicated to providing reliable flow control solutions for instrumentation, chimico, farmaceutico, trattamento dell'acqua, e sistemi di tubazioni industriali in tutto il mondo. Tutti i prodotti sono realizzati secondo gli standard internazionali CE e ISO 9001 certificazioni. Con oltre 10 anni di esperienza, una struttura moderna di 80,000 mq, E 200+ dipendenti professionisti, serviamo i clienti in 10+ paesi con prodotti di qualità, prezzi competitivi, e consegna affidabile.

Valvola di ritegno silenziosa caricata a molla

Termini di pagamento

T/T, L/C a vista, Unione occidentale, PayPal, ApplePaga, GooglePaga, Carta di credito, ecc.

Domande frequenti

Q1: 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.

Q2: 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. Al contrario, swing check valves must be installed horizontally.

Q3: Can this valve be used for vertical downward flow?

UN: SÌ. 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.

Q4: 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, trattamento dell'acqua, pneumatic and hydraulic control circuits, and pharmaceutical production lines.

Valvola di ritegno silenziosa caricata a molla