Durable Spring-Loaded Double Parallel Sliding Gate Valve for Industrial Use

• 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 * 1.00cm * 1.04cm
• Package Gross Weight: 50.000kg
• Lead Time: 15 days (1 - 50 Pieces) ; To be negotiated ( > 50 Pieces)

Product Description

Product Description

<sup>Our API/SIL Certified Spring Loaded Double Parallel Sliding Gate Valves are engineered to redefine efficiency and reliability. Unlike traditional wedge gate valves, our innovative design requires significantly less operating torque and features a more compact drive size, enhancing ease of operation. The heart of this advancement is the use of an INCONEL butterfly spring, which replaces the standard coil spring, seamlessly integrating into the valve body for a smoother assembly process. Our cutting-edge compensation structure is meticulously crafted to prevent jamming, even under high-temperature conditions, eliminating issues related to adhesion and wedge extrusion. Furthermore, the valve plate and seat surfaces are expertly hardened through methods such as hard alloy overlay welding and surface spraying with Co-Cr-Ni alloy, WC, and boron. This fortification delivers exceptional self-cleaning capabilities and achieves an impressive surface hardness of HRC90 or higher, ensuring longevity and optimal performance.

Versatility meets precision with our Spring Loaded Double Parallel Sliding Gate Valves, which are compatible with a range of actuation systems. Whether your requirements call for pneumatic actuators, electric actuators, electro-hydraulic actuators, or manual actuators, our valves can be seamlessly integrated to suit your specific needs, providing adaptable solutions for various operational environments.</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

 

^{The impressive pressure seal bonnet is crafted with a high-density pure graphite gasket, ensuring superior sealing and reliability.
An innovative overpressure protection device is ingeniously integrated into the bonnet, safeguarding the valve from excessive pressure and enhancing operational safety.
Featuring a meticulously engineered spring preloaded flat gate valve, designed for optimal performance and durability.
A thoughtfully designed, relatively wide valve seat and gate ensure robust and consistent sealing effectiveness.
Equipped with a precise limit device on the support rod for enhanced operational control and safety.
An anti-rotation device on the valve stem guarantees reliability and prevents unintended movement during operation.
Crafted with different hardness levels on both ends of the sealing surface, this design significantly reduces wear. With a hardness difference of approximately 5HRC, the gate features STLG# and the valve seat STL12# for optimal longevity.
The bonnet boasts a sophisticated conical sealing design, ensuring exceptional sealing integrity under varying conditions.
Engineered for versatility, this valve supports bidirectional flow for maximum flexibility in application.
Incorporating two robust thrust bearings and aluminum bronze sleeves for superior strength and performance.
A thoughtfully designed structure accommodates available bypass piping, enhancing versatility and application efficiency.}

Spring Compensated Valve Plate Assembly

Boasts a cutting-edge graphite ring pressure self-sealing structure for enhanced pressure handling capability.

^{With a unique design, as the pressure increases, the sealing force correspondingly heightens, ensuring consistent and reliable performance.
In high-temperature environments or where temperature frequently fluctuates, advanced graphite pressure sealing gaskets are recommended over standard soft iron gaskets, ensuring optimal performance in challenging conditions.}

Double Parallel Sliding Gate Valves

<sup>The Double Parallel Sliding Gate Valves employ an innovative sealing structure consisting of dual parallel gates and a wedging device, which supplant the conventional wedge gate valve design. This refined sealing mechanism ensures consistent sealing, even when confronting temperature-induced deformations, without succumbing to jamming from thermal expansion.

During opening, the sealing disk and valve seat disengage and elevate due to the wedge block effect, significantly reducing friction between surfaces. This results in minimal torque requirements and straightforward operation, thereby extending service life. This design effectively resolves challenges such as the large lifting force needed for single gate initiation, sealing surface wear, and high-temperature jamming, significantly enhancing sealing performance and operational longevity.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd. emerges as a leading force in the realms of control valve manufacturing, flawlessly integrating design, production, sales, and exemplary service. Strategically stationed in the vibrant hub of Qingdao, Shandong province, our expansive 42,000m² facility is a beacon of innovation, boasting state-of-the-art workshops and advanced production equipment. As a high-tech enterprise, we pride ourselves on holding independent intellectual property rights, seamlessly marrying advanced global management and production methodologies. Our dynamic team of over 150 dedicated professionals includes a remarkable 15% in research and development, with 30% holding graduate degrees or higher. This formidable team drives our success, enabling us to produce superior valves that cater to the intricate needs of the petrochemical, oil, and coal chemical industries. In 2017 alone, our sales soared to a staggering near 100 billion, a testament to our commitment to excellence.

Today, SNT boasts the prestigious TS special equipment manufacturing certificate, ISO 9001 accreditation, and proudly holds net qualification certificates from esteemed giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our national patents in numerous technologies underscore our commitment to innovation. We specialize in the design and manufacture of a comprehensive range of valves adhering to international standards such as ANSI, API, DIN, BS, and JIS. By amalgamating the finest global valve technologies with our own research and innovation, we manufacture an extensive variety of valves, including GLOBE, High-Pressure Boiler Blow-down Valves, and High-performance Butterfly Valves, among others.
Our diverse valve offerings include Angle-regulating Valves, Eccentric Rotary Valves, T Three-eccentric Center Butterfly Valves, V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves. We provide versatile driving forms, including manual, power-driven, pneumatic, and hydraulic options. The main parts are meticulously crafted from materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120", working pressures of ANSI 150# to 2500#, and operating temperatures from -196ºC to 1100ºC.

Empowered by our cutting-edge production technology management and robust quality assurance system, SNT valves have garnered widespread acclaim and application across industries such as petrochemicals, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele includes industry leaders like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and more.

At SNT, our customers' success is our paramount priority. We are unwaveringly dedicated to forging a brand recognized for exceptional quality and distinction. Our comprehensive quality assurance and after-sales systems assure that our SNT valves create enduring partnerships with our customers, driving shared prosperity and success.</sup>