Spring Loaded Double Parallel Sliding Gate Valves for Suspended Particles

• Customization: Available
• Media: Gas
• Temperature: High Temperature
• Model NO.: AOC-9033
• Type: Straight-through
• Material: Stainless Steel
• Connection Form: Flange
• Pressure: High Pressure
• Actuator: Electric
• Seal Surface: Parallel Gate Valve
• Thread Position of Valve Rod: Inside Gate Valve
• Usage: Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Medium: Gas/ Suspended Particles/Fibers
• Actuator Conbination: Pneumatic Cylinder Actuator
• Standards: API/Sil
• Characters: Excellent Opening and Closing
• Operations: Featuring Full Bore/Low Flow Resistance
• Operation: Good Sealing Performance
• Connections: RF Flange/Rtj/Sw Socket Welt/Bw Butt Weld
• Actuator Size/Plug Size: 1.1/2′′(40A)-36′′(600A)
• Actuators: Pneumatic, Electric
• Fluid Temperature: -20~+566degree
• Body Materials: A216 Wcb/C/A351CF8
• Body Material: Carbon Steel/Stainless Steel
• Trim Materials: A105+Enp+PTFE/SUS316+Stellite
• Flow Characteristics: on-off
• Body Rating: ANSI150-1500
• Transport Package: Plywood Case
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000/Year
• Package Size: 1.07cm * 1.07cm * 0.80cm
• Package Gross Weight: 30.000kg
• Lead Time: 25 days (1 - 50 Pieces) ; To be negotiated ( > 50 Pieces)

Product Description

Product Description

<sup>Introducing the Spring Loaded Double Parallel Sliding Gate Valve, a marvel of engineering by SNT Machinery (Qingdao) Co., Ltd. This innovative valve excels over traditional wedge gate valves with its significantly reduced operating torque and compact drive size, offering unparalleled efficiency. At its core, an advanced INCONEL butterfly spring replaces the conventional coil spring, simplifying assembly within the valve body and enhancing durability. The ingenious compensation structure design prevents jamming under high temperature conditions, eliminating adhesion and wedge extrusion issues. Our valve's surfaces are expertly hardened using techniques such as hard alloy overlay welding and surface spraying with Co-Cr-Ni alloy, WC, and boron. This meticulous process ensures a self-cleaning function with an impressive surface hardness reaching HRC90 or above, setting a new standard in performance and reliability.

Versatility at its finest, the Spring Loaded Double Parallel Sliding Gate Valve from SNT Machinery (Qingdao) Co., Ltd. can be seamlessly integrated with a variety of actuators. Choose from pneumatic actuators, electric actuators, electro-hydraulic actuators, or manual actuators to suit your specific operational needs. This adaptability ensures that our valve meets the demands of any application, providing dependable performance and control.</sup>
 

Product Parameters

Body  Type			AOC-9031 Single Parallel Sliding Gate Valves	AOC-9032 Double Parallel Sliding Gate Valves	AOC-9033 Spring Loaded Double Parallel Sliding Gate Valves
Actuator Size			1.1/2''(40A)-36''(900A)	1.1/2''(40A)-36''(900A)	1.1/2''(40A)-24''(600A)
Plug Size			1.1/2''(40A)-36''(900A)	1.1/2''(40A)-36''(900A)	1.1/2''(40A)-24''(600A)
Body Rating			ANSI 150-300	ANSI 150-600	ANSI 150-1500
Fluid Temperature			-20~+250ºC	-20~+450ºC	-20~+566ºC
Connections			Flanged(RF, RTJ), Butt Weld, Socket Weld(SW, BW)
Body Materials			A216WCB/C,A217 WC6/9, A351 CF8, A351CF8M,etc
Trim Materials			A105+ENP+PTFE,SUS316+Stellite, etc		SUS316+Stellite
Flow Materials			ON-OFF	ON-OFF	ON-OFF
Leakage		Metal Seat	ANSI Class V	ANSI Class V, VHS	ANSI Class V, VHS
		Soft Seat

 

Structural Features

 

Product Feature

 

^{Pressure seal bonnet that boasts a high-density pure graphite gasket, ensuring exceptional sealing capabilities.
An innovative overpressure protection device is integrated into the bonnet, safeguarding the system against excessive pressure for enhanced reliability.
Ingeniously designed with a spring preloaded flat gate valve, ensuring secure and efficient control.
Features a relatively wide valve seat and gate, facilitating robust performance and reliability.
Equipped with a limit device on the support rod for precise operation and enhanced control.
An anti-rotation device on the valve stem ensures stability and prevents unwanted movement.
Designed with differing hardness at both ends of the sealing surface to minimize wear significantly, featuring a hardness difference of approximately 5HRC-gate made of STLG#, valve seat made of STL12#.
Embraces a conical design for bonnet sealing, optimizing sealing efficacy and reliability.
Capable of handling bidirectional flow, offering versatile application and efficiency.
Incorporates two thrust bearings coupled with aluminum bronze sleeves for smooth operation and durability.
Features an available structure for bypass piping, enhancing versatility and system integration.}

Spring Compensated Valve Plate Assembly

Utilizes a graphite ring pressure self-sealing structure for enhanced sealing under varying pressures.

^{Remarkably, the higher the pressure, the greater the sealing force, ensuring uncompromised performance.
In environments characterized by high temperatures or frequent temperature fluctuations, it is advisable to use graphite pressure sealing gaskets as replacements for standard soft iron gaskets, optimizing performance for such demanding conditions.}

Double Parallel Sliding Gate Valves

<sup>The ingenious Double Parallel Sliding Gate Valves feature a sealing structure with two parallel gates and a wedging device, replacing the conventional wedge gate valve structure. This innovative design keeps sealing components separate, ensuring effective sealing even when subjected to temperature-induced deformations, and avoids jamming due to high-temperature expansion.

Upon opening, the valve's sealing disk and seat disengage and rise, thanks to the wedge block effect, significantly reducing friction between the sealing surfaces. This results in minimal torque requirement, effortless operation, and prolonged service life. This design masterfully tackles challenges such as the significant lifting force needed for single gate initiation, sealing surface wear, poor sealing, reduced service life, and jamming during high-temperature operations, thereby enhancing the valve's sealing performance and longevity.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd is a premier manufacturer of control valves, seamlessly integrating manufacturing, design, sales, and services. With a strategic foundation and rapid development, SNT is situated in Qingdao, Shandong, sprawling over 42,000m², featuring state-of-the-art workshops and cutting-edge production facilities. As a high-tech enterprise, we boast independent intellectual property rights and have imported advanced management practices and production expertise. Our team consists of over 150 skilled professionals, with 15% dedicated to R&D, and 30% holding graduate or higher degrees. Our exceptional production management and innovative R&D capabilities empower us to produce a vast array of high-quality valves for the petrochemical, oil, and coal chemical sectors, achieving a sales volume nearing 100 billion in 2017.

SNT proudly holds the TS special equipment manufacturing certificate and ISO 9001 certification. We have earned net qualification certificates from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is further highlighted by several National Patents. We meticulously design and craft a full spectrum of valves adhering to ANSI, API, DIN, BS, and JIS standards. By amalgamating the best features of globally renowned valves with our own R&D innovations, we offer an extensive array of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, amongst others.
Our diverse valve portfolio includes V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogenic Valves, and more. Driving options encompass manual, electric, pneumatic, and hydraulic controls. The primary construction materials include A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. We offer specifications from 1/2" to 120", with working pressures ranging from ANSI 150# to 2500#, and operational temperatures spanning -196ºC to 1100ºC.

Capitalizing on our sophisticated production technology management and robust quality assurance systems, SNT valves are extensively utilized across industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, and PETROCHINA Ningxia branch, among others.

Prioritizing our users' profitability, we are committed to establishing unparalleled quality and a distinguished brand. Our comprehensive quality assurance and exceptional after-sales systems ensure that SNT valves forge strong partnerships with our customers, creating shared prosperity.</sup>