Spring Loaded Double Parallel Sliding Gate Valves for Gas and Fibers

• 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>The Spring Loaded Double Parallel Sliding Gate Valve offers a cutting-edge alternative to the traditional wedge gate valve, boasting a remarkable reduction in operating torque and drive size. This innovative valve is engineered with a high-performance INCONEL butterfly spring within its internal valve plate, eliminating the need for a conventional coil spring and ensuring effortless integration into the valve body. Its unique compensation structure is designed to prevent jamming, even under high-temperature conditions, effectively countering issues arising from adhesion and wedge extrusion. The valve's plate and seat surfaces are fortified with advanced hardening techniques-such as hard alloy overlay welding and surface spraying of Co-Cr-Ni alloy, WC, or boron-delivering unparalleled self-cleaning capabilities and achieving an impressive surface hardness of HRC90 or higher.

The Spring Loaded Double Parallel Sliding Gate Valve seamlessly pairs with a variety of actuation options, whether pneumatic actuators, electric actuators, electro-hydraulic actuators, or the simplicity of manual actuators, ensuring versatile adaptability to any operational requirement.</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

 

^{Featuring a robust pressure seal bonnet complemented by a high-density pure graphite gasket, ensuring exceptional sealing integrity and durability.
Innovatively designed with an overpressure protection device integrated into the bonnet, this valve is adept at safeguarding against excessive pressure, ensuring optimal safety and performance.
Built with a spring preloaded flat gate valve, this product exhibits superior control and responsiveness in regulating flow.
Engineered with a comparatively wide valve seat and gate, it provides enhanced stability and reliable sealing performance.
Incorporates a precise limit device on the support rod, designed to ensure safe and accurate operation.
Equipped with an anti-rotation device on the valve stem, maintaining alignment and ensuring consistent performance under demanding conditions.
The sealing surfaces are crafted with distinct hardness levels on both ends, preventing excessive wear. Featuring a hardness variation (~5HRC): gate - STLG#, valve seat - STL12#, this design ensures prolonged durability and effective sealing.
Boasting a conical design for the bonnet seal, this configuration guarantees superior sealing efficacy.
Facilitates bidirectional flow, offering versatile application capabilities.
Incorporates two thrust bearings and aluminum bronze sleeves, enhancing the mechanical robustness and operational efficiency.
Designed with an available structure for bypass piping, allowing for increased flexibility in installation and maintenance.}

Spring Compensated Valve Plate Assembly

Features a graphite ring pressure self-sealing structure, offering robust and reliable sealing under varying pressure conditions.

^{Ingeniously crafted to increase the sealing force in response to rising pressure, ensuring a secure and dependable seal.
For applications enduring high temperatures or frequent temperature fluctuations, we recommend opting for graphite pressure sealing gaskets instead of standard soft iron gaskets to guarantee superior performance and resilience in challenging environments.}

Double Parallel Sliding Gate Valves

<sup>The innovative Double Parallel Sliding Gate Valves replace traditional wedge gate valve structures with a sealing configuration of two parallel gates and a wedging device. This unique separation of the sealing mechanism components ensures excellent sealing even amidst temperature-induced deformation, eliminating issues of jamming due to high temperature expansion.

Upon opening, the valve's sealing disk and seat first disengage and rise via the wedge block effect, significantly reducing friction between sealing surfaces, thus requiring minimal torque, easing operation, and extending service life. This design expertly addresses challenges such as high lifting force demand for single gate operation, sealing surface wear, and poor sealing, while also preventing jamming during high-temperature opening and closing, thereby enhancing sealing performance and longevity.</sup>


 

Production application

Company Profile

<sup>SNT Machinery (Qingdao) Co., Ltd is a prestigious manufacturer of control valves, expertly blending the art of manufacturing, innovative design, comprehensive sales, and exceptional services. Located in the bustling city of Qingdao, Shandong province, SNT sprawls across an impressive 42,000 square meters, boasting state-of-the-art workshops and cutting-edge production equipment. As a high-tech enterprise, we pride ourselves on possessing independent intellectual property rights and implementing advanced imported management and production techniques. With a dynamic team of over 150 professionals, 15% are R&D specialists and 30% hold graduate or higher degrees. Our commitment to excellence, driven by a top-tier production management team and groundbreaking research and development innovations, empowers us to produce vast quantities of superior quality valves. These valves are integral in the petrochemical, oil, and coal chemical industries, culminating in an impressive sales value nearing 100 billion in the year 2017.

SNT proudly holds the TS special equipment manufacturing certificate and the prestigious ISO 9001. We have also obtained the net qualification certificate from industry giants such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our cutting-edge technological advancements have earned us numerous National Patents. We possess the capability to design and manufacture a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By amalgamating the strengths of world-renowned valve designs with our own innovative research and development, we have mastered the production of a diverse array of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, and Eccentric Rotary Valves, to name a few.
Our extensive valve portfolio also encompasses 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, among others. The driving mechanisms span manual operation, power-driven, pneumatic, and hydraulic systems. Our main components are crafted from premium materials, such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, and more. Our specifications range from 1/2" to 120", with working pressures from ANSI 150# to 2500#, and temperatures ranging from a frosty -196ºC to a scorching 1100ºC.

Leveraging our advanced production technology management and robust quality assurance systems, SNT Valves are the trusted choice across a spectrum of industries, including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our esteemed clientele features industry leaders like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, and SINOPEC Changling branch, among others.

At SNT, we prioritize the success of our customers, dedicating ourselves to fostering exceptional quality and building a distinguished brand. Our impeccable quality assurance and comprehensive after-sales systems ensure that SNT valves form enduring partnerships with all our clients, creating a prosperous future together.</sup>