Vöruyfirlit

TheFjaðri hlaðinn þögull eftirlitsventill 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, efnavinnsla, vatnsmeðferð, lyfjafyrirtæki, 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.

Fjaðri hlaðinn þögull eftirlitsventill

Tæknilýsing

Fjaðri hlaðinn þögull eftirlitsventill

Helstu eiginleikar

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 vottað – alþjóðlegt samræmi

Vinnureglu

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

• 1. Áfram flæði (Loki opinn): 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 (Loki lokað): Þegar flæði stöðvast eða snýr við, 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.

Fjaðri hlaðinn þögull eftirlitsventill

Umsóknir

1. Instrumentation & Analytical Systems
2. Efnafræðileg & Pharmaceutical Dosing
3. Water Treatment & Purification
4. Pneumatic & Vökvakerfi

Pökkun og sending

Pökkun fer eftir vörutegund og magni. Options include carton boxes with proper protection for threaded ends. Hægt er að skipuleggja sendingu á sjó, járnbraut, lofti, eða samkvæmt beiðni viðskiptavinarins.

Fyrirtækið

Luoyang Datang Energy Tech Co., Ltd er faglegur iðnaðarventlabirgir, dedicated to providing reliable flow control solutions for instrumentation, efna, lyfjafyrirtæki, vatnsmeðferð, og iðnaðarlagnakerfi um allan heim. Allar vörur eru framleiddar samkvæmt alþjóðlegum stöðlum með CE og ISO 9001 vottorð. Með yfir 10 ára reynslu, nútíma aðstaða á 80,000 m², og 200+ fagmenntaðir starfsmenn, við þjónum viðskiptavinum í 10+ lönd með gæðavöru, samkeppnishæf verðlagning, og áreiðanlega afhendingu.

Fjaðri hlaðinn þögull eftirlitsventill

Greiðsluskilmálar

T/T, L/C í sjónmáli, Western Union, PayPal, Apple Pay, Google Pay, Kreditkort, o.s.frv.

Algengar spurningar

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. Aftur á móti, swing check valves must be installed horizontally.

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

A: Já. 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, silent operation, and reliable backflow protection, including instrumentation and analytical systems, chemical dosing, vatnsmeðferð, pneumatic and hydraulic control circuits, and pharmaceutical production lines.

Fjaðri hlaðinn þögull eftirlitsventill