ANSI 150-ANSI 2500 for Nominal Pressure/High Pressure & Temperature Boiler Blow-Down Valve with Stainless Steel Materials

• Customization: Available
• Media: Gas
• Temperature: High Temperature
• Model NO.: Y-Type Through Way Drain Valve
• Actuator: Pneumatic
• Material: Carbon Steel
• Structure: Through Way Globe Valve
• Sealing Form: Gland Packings Globe Valve
• Stem Thread Position: Outside Screw Stem Globe Valve
• Application: Lining Fluorine Valve, Needle Type Globe Valve, Cryogenic Globe Valve, Plunger Type Globe Valve, Heat Preservation Globe Valve, Forged Steel Globe Valve, Oxygen Globe Valve, Bellows Globe Valve
• Standard: DIN, GB, ANSI, JIS
• Type: Through Way Type/Angle Type/Series Type and Y Type
• Specifications: DN20/DN25/DN40/DN50/DN65/DN80
• Nominal Pressure: ANSI150-ANSI1500
• Rated Stroke: 25/40/50/60 mm
• Fluid Temperature: -20ºC~566ºC
• Connection Type: Sw, Bw, Flanged
• Flow Control: Continuous Flow Control Conditions
• Flow Control Way: Continuous Flow Control Conditions
• Leakage Class: 0 Leakage (API598)
• Materials: Carbon Steel/Alloy Steel/Stainless Steel
• Forging Mode: 3/4"(DN20) 1"(DN25) /1.1/2"(DN40) 2"(DN50)
• Casting Mode 1: ANSI900 and Below Are Connected with Flanges
• Casting Mode 2: ANSI1500 and Above Are Butt Welded
• Casting Mode 3: Cap of Angle Body: Bolted Connection
• Casting Mode: 2.1/2"(DN65)/3"(DN80)
• Transport Package: Wooden
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 500000PCS/Year

Product Description

Standard Mat.Comparison

 

SNT Machinery - A Commitment to Quality and Precision - Y-TYPE THROUGH DRAIN VALVE: Engineered for Excellence
1"3/4 (DN20) ~ 3" (DN80) ANSI Class 150 ~ 1500: Unmatched Versatility and Reliability Across a Range of Applications

Applications		Steam boiler, evaporator and other boiler water intermittent drain control		Manual operation control
Nominal pressure		ANSI 150, 300, 600, 900, 1500		>=ANSI1500 RT Pressure class >=ANSI1500 for RT test
Nominal diameter	Forging mode	1"(DN25) and 1.1/2"(DN40), 2"(DN50)		ANSI 150, 300, 600, 900, 1500
	Casting mode	2.1/2"(DN65), 3"(DN80)		ANSI 150, 300, 600, 900, 1500
Connection mode	Forging mode	-:Standard connection: SW - Optional connection: BW or flanged		Pair flanges for option: flat welded flange Butt welded flange
	Casting mode	-ANSI900 -ANSI1500 -ANSI900 and below are connected with flanges -ANSI1500 and above are butt welded - Cap of Angle body: bolted connection
Design calculation		-Y-type stop valve -CFD - The size of the seat hole is calculated by strict design Verified by CFD analysis and testing -Compound hole plate can be configured for actual high pressure difference conditions -Suitable for forging and casting -Heat treatment of valve internals Valve core: surface hardening or nitriding treatment Seat: nitriding or surfacing with STL alloy		Replace seat and core quickly :STELLITE Gr.6 Surface hardening: surfacing STELLITE Gr.6 Surface hardening of the seat; Other options
Material		-Carbon steel -Alloy steel -Stainless steel -High quality Alloy steel	A105N A182-F22 A182-F304(L A182-F316(L) As required by customer
Flow control		Intermittent flow control condition		Manual control

STANDARD MATERIAL COMPARISON SHEET: Your Guide to Our Superior Offerings

^No.	^Part name	^Standard material		^No.	^Part name	^Standard material
		^<ANSI 900	^>=ANS|1500			^<ANSI900	^>=ANSI 1500
^1	^Valve body	^A105N	^A105N	^83	^Screw holder	^HBsc2	^HBsc2
^2	^Top cover	^A105N	^A105N	^85	^Flat head round key	^Carbon steel	^Carbon steel
^3	^Body screw	^A193-B7 Colored zinc plating	^A193-B7 Colored zinc plating	^86	^Lock nut	^Carbon steel + galvanized	^Carbon steel + galvanized
^4	^Body nut	^A194-2H Colored zinc plating	^A194-2H Color zinc plating	^87	^Hex socket screws	^304SS	^304SS
^5	^Valve core	^A276410+HF	^316+S503+S505	^88	^Nameplate	^304SS	^304SS
^6	^Valve seat	^A276410+HF	^316+ZY08	^89	^Connecting flange	^Carbon steel	^Carbon steel
^8	^Wrap shims	^304+GRAPHITE	^304+GRAPHITE	^90	^Limit anti-turn block	^Carbon steel + galvanized	^Carbon steel + galvanized
^9	^Sleeve	^440C+HF	^316+S101	^91	^Nuts	^Carbon steel + galvanized	^Carbon steel + galvanized
^14	^Wrap shims	^304+GRAPHITE	^304+GRAPHITE	^92	^Thrust needle roller bearings	^Bearing steel (standard material	^Bearing steel (standard material
^17	^Packing plate	^A351 CF8	^A351 CF8	^93	^Hex set screws	^304SS	^304SS
^23	^Nuts	^A194-2H	^A194-2H	^252	^Packing gland	^A276410	^A276410
^24	^Screw	^A193-B7	^A193-B7	^255	^Packing assembly	^Flexible graphite	^Flexible graphite
^80	^Support stand pole	^Carbon steel + galvanized	^Carbon steel + galvanized	^257	^Packing pad	^A276410	^A276410
^81	^Hex head bolts	^304SS	^304SS	^572	^Handwheel	^Carbon steel	^Carbon steel

<sup>Notes: Essential Insights into Our Advanced Material Solutions
1. S101 Hard Surface Technical Description: Boasts an impressive hardness of HRC≥55, with a robust metallurgical combination, ensuring durability and resistance to material fallout.
2. S503 Hard Surface Technical Description: Features a thickness of 1.5mm and a remarkable hardness of HRC≥55, with a binding force of 400MPa, designed to withstand the rigors of demanding environments.
3. S505 Hard Surface Technical Description: With a sleek thickness of 0.3mm and an exceptional hardness of HRC≥65, paired with a formidable binding force of ≥250MPa, this surface is crafted for optimal performance.</sup>

About SNT Blow-down Valves

SNT Machinery(Qingdao) Co., Ltd. (referred to as SNT) stands as a beacon of innovation in valve manufacturing, specializing in the cutting-edge development, meticulous design, and precision production of advanced fluid flow and valve technology.

SNT The SNT drain valve is a versatile marvel, adeptly employed in seamless continuous throttling control across a spectrum of high-demand applications. Whether it's the meticulous orchestration of boiler continuous drainage, precise sampling from high-pressure vessels and reactors, deft high-pressure discharge management, or facilitating the smooth operation of boiler feed pump bypass systems, the SNT valve excels. It thrives under high pressure difference scenarios, masterfully guiding processes such as heater drains into condensers, even amidst challenges of corrosion and rapid flow-induced flash conditions. In stark contrast to traditional valves, the SNT valve is engineered to withstand these rigorous environments with unmatched robustness and durability. Traditional cutoff drain valves falter under the high flow rate and severe erosion of continuous drain conditions, whereas even venturi valves appear fragile. The SNT valve, on the other hand, rises to the occasion, designed to endure and excel where others fail.

The SNT drain valve reimagines conventional internal structure design with ingenuity. Its flow channel, ingeniously sculpted between the valve core and cylindrical valve seat, features a smooth trajectory that accelerates fluid flow until it reaches the downstream of the valve seat. Here, the chamber's abrupt expansion induces a pressure drop at the flow channel's center, catalyzing the fluid's rapid expansion towards the flow center. Simultaneously, the fluid's energy dissipates swiftly, ushering it into a turbulent state. This highly efficient discharge process empowers the fluid to transform into steam when supersaturated, while simultaneously cooling any remaining liquid-a sophisticated application of flash evaporation in liquid flow.

To cater to the diverse spectrum of device requirements, we adeptly engineer valves within the pressure range of ANSI 150 to ANSI 2500. The standard stop valve dimensions elegantly span 3/4"(DN20), 1"(DN25), 1.1/2"(DN40), 2"(DN50), 2-1/2"(DN65), and 3"(DN80). SNT valves are primarily designed in a standard angular connection form, facilitating a harmonious fluid flow. The through-way type stop valves are also an option. Depending on the control requirements, they can be expertly adapted to manual, pneumatic, or electric control. For precision throttling control, SNT's internal-design structure undergoes rigorous flow evaluation using advanced Computational Fluid Dynamics (CFD) through the Fluent-Code. This enables meticulous simulation and analysis of the flow channel and its pressure drop. All SNT internal components are often fortified with high-quality Co-Ni based alloys or safeguarded with Cr-N ceramic coatings, ensuring they remain resilient against abrasion and corrosion, even under intense pressure drops and rapid flow rates.


 

 

Product Description

Rated Flow Coefficient Comparison Table



Application of Typical Working Conditions
 

^{As shown in the figure on the left, according to the prestigious ASME B31.1 Power Boilers and Piping standards, intermittent drain valves are commonly employed in Zone 2, being integrated directly within the boiler or associated boiler piping. Adding to the versatility, there are also continuous drain valves, traps, safety valves, and more, ensuring comprehensive system safety.}

<sup>In accordance with §122.1.4 of ASME B31.1 Power Boilers and Piping, the piping typically incorporates a series of 2 valves: one is a Y-type intermittent drain valve and the other is an emergency stop valve, ensuring operational reliability.

The intermittent drain valve is designed with a lever-type rapid discharge mechanism, facilitating swift opening and closure for efficiency. When the valve is actuated, sediments, dirt, and other particulates collected at the base of the boiler are expelled swiftly, usually within 3 seconds. Exceeding this duration might result in excessive boiler water loss, leading to resource inefficiency. The flow channel closely resembles a straight pipeline for optimal discharge.

The emergency stop valve is crucial for ensuring an absolute pipeline cut-off, thereby conserving resources in the event of a malfunction of the preceding intermittent drain valve, upholding system integrity and environmental responsibility.</sup>

Conditions&Solutions

Pressure and Temperature Parameters: Our High Pressure & Temperature Boiler Blow-down Valve DN65 - ANSI150 is designed to excel under demanding circumstances, boasting parameters that accommodate the highest levels of pressure and temperature. Engineered to withstand extreme conditions, it guarantees optimal performance and longevity, making it an indispensable component in your operation's infrastructure.

 

Production application

 

 

Our Advantages

^{SNT Ball Valves are meticulously crafted to adhere to a broad spectrum of prestigious international standards, including ASME B16.34-2009, ASME B16.10-2000, and API 589-2009. This dynamic series offers extensive utility across a range of sectors such as petroleum, chemical industry, light industry, pharmaceuticals, paper-making, metallurgy, and power stations, making them an indispensable asset for industry leaders.}

<sup>Their Outstanding Features Include:
A streamlined design that promotes effortless disassembly.
Thoughtfully engineered for maintenance ease, our ball valves incorporate a non-tight fit design, facilitating quick servicing that significantly reduces downtime during scheduled maintenance activities.

State-of-the-art sealing technology ensuring maximum security.
The innovative multi-layer sealing of stem and body offers dual protection using a sophisticated combination of O-ring and graphite or PTFE materials, ensuring unparalleled sealing performance.
This groundbreaking design adheres to the rigorous TA-Luft/Shell SPE 77/312 standards, underscoring our commitment to excellence.

Extended Service Life for Superior Cost-Efficiency
Our metal seated ball valves are subject to advanced processing techniques such as spray welding, spraying, and fusion welding, achieving a remarkable hardness range of HRC58-73 and a robust binding force of 80-40MPa. They boast an impressive on-off cycle lifespan exceeding 100,000 operations and a leakage class of ANSI VI, setting new standards for durability.

Modular Design for Enhanced Convenience
The cleverly designed modular inner sealing system allows for straightforward interchangeability between soft and metal seats, ensuring seamless adaptability and robust reliability.

Varied Connection Types for User Convenience
Our valves come in a wide array of connection types, including flanged (RF, FF, FM, G, RJ), screw-thread, and BW. Each type is crafted to align with international standards, facilitating smooth and user-friendly integration into any system.

Extensive Application Experience Guarantees Reliability
SNT Valves have forged a stellar reputation through their extensive application in petroleum, chemical industry, light industry, pharmaceuticals, paper-making, metallurgy, and power stations. We provide tailored solutions to meet specific service demands, ensuring unmatched reliability and performance for our esteemed clients.</sup>