Visión xeral do produto

OVálvula de retención silenciosa con resorte 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, selado fiable, 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, procesamento químico, tratamento de augas, farmacéutica, 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.

Válvula de retención silenciosa con resorte

Especificacións técnicas

Parámetro	Especificación
Nome do produto	Válvula de retención silenciosa con resorte
Tipo de válvula	Spring Loaded Check Valve / Spring-Loaded Silent Check Valve
Material do corpo	SS304 / SS316 / CF8 / CF8M Stainless Steel
Material de selado	PTFE / RPTFE / PPL
Tipo de conexión	Rosca (NPT)
Connection Size	1/4″ NPT

Válvula de retención silenciosa con resorte

Características clave

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.

Válvula de retención silenciosa con resorte

Aplicacións

1. Instrumentation & Analytical Systems
2. Química & Pharmaceutical Dosing
3. Tratamento de augas & Purification
4. Pneumático & Sistemas hidráulicos

Embalaxe e envío

A embalaxe depende do tipo e da cantidade de produto. Options include carton boxes with proper protection for threaded ends. O envío pódese organizar por mar, ferrocarril, aire, ou segundo a solicitude do cliente.

Perfil da empresa

Luoyang Datang Energy Tech Co., Ltd é un provedor profesional de válvulas industriais, dedicated to providing reliable flow control solutions for instrumentation, química, farmacéutica, tratamento de augas, e sistemas de tuberías industriais en todo o mundo. Todos os produtos son fabricados segundo normas internacionais con CE e ISO 9001 certificacións. Con máis 10 anos de experiencia, unha moderna instalación de 80,000 m², e 200+ empregados profesionais, atendemos a clientes en 10+ países con produtos de calidade, prezos competitivos, e entrega fiable.

Válvula de retención silenciosa con resorte

Condicións de pago

T/T, L/C á vista, Western Union, PayPal, Apple Pay, Google Pay, Tarxeta de crédito, etc.

FAQ

Q1: What is the difference between a low-cracking-pressure check valve and a standard check valve?

A: 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?

A: 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 contraste, swing check valves must be installed horizontally.

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

A: Si. 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?

A: It is suitable for applications requiring low pressure drop, operación silenciosa, and reliable backflow protection, including instrumentation and analytical systems, chemical dosing, tratamento de augas, pneumatic and hydraulic control circuits, and pharmaceutical production lines.

Válvula de retención silenciosa con resorte