BN Series Integral Bonnet Needle Valves
Integral bonnet needle valves are a type of valve commonly used in industrial applications to control the flow of fluids and gases. They are designed with a threaded bonnet that is integrated into the valve body, providing a compact and streamlined construction. These valves are known for their excellent sealing capabilities and precise flow control, making them suitable for critical processes where accuracy is paramount. The main components of an integral bonnet needle valve include a valve body, a stem or spindle, a needle-shaped disc, a bonnet, and various sealing elements.
BN Series Integral Bonnet Needle Valves
Integral bonnet needle valves are a type of valve commonly used in industrial applications to control the flow of fluids and gases. They are designed with a threaded bonnet that is integrated into the valve body, providing a compact and streamlined construction. These valves are known for their excellent sealing capabilities and precise flow control, making them suitable for critical processes where accuracy is paramount.
The main components of an integral bonnet needle valve include a valve body, a stem or spindle, a needle-shaped disc, a bonnet, and various sealing elements. The valve body is typically made of durable materials such as stainless steel or brass to withstand high pressures and corrosive environments. The stem connects the actuator to the needle disc, allowing for the opening and closing of the valve.
The distinguishing feature of integral bonnet needle valves is the threaded bonnet that is directly attached to the valve body. This design eliminates the need for a separate bonnet, resulting in a more compact and robust construction. The bonnet houses the stem and provides a means for tightening and securing the valve components.
The needle-shaped disc is a critical component of these valves. It features a tapered point that fits into a corresponding seat within the valve body, allowing for precise flow control. By adjusting the position of the needle disc, the flow rate can be accurately regulated, making integral bonnet needle valves ideal for applications that require fine-tuning of flow rates.
Integral bonnet needle valves are commonly used in systems where the flow of fluids or gases needs to be controlled with high precision. They find applications in industries such as oil and gas, chemical processing, pharmaceuticals, power generation, and laboratory research. Some specific applications include flow metering, pressure regulation, sampling, and isolation of components or equipment.
BN Series Integral Bonnet Needle Valve Features:
- One-piece forged body
- Easy external adjustments by packing nut.
- Compact design.
- Handle color options are available
- Leak-tight performance testing for every valve with nitrogen at the maximum working pressure.
- Maximum working pressure: BN Series-Stainless steel: 3000 psig (207 bar)
- Working temperature:
PTFE:-65°F to 450°F（-54°C to 232℃）
PEEK:-65°F to 500°F（-54Cto 260°℃）
Integral Bonnet Needle Valve Standard Materials of Construction:
| Item | Component | Valve Body Material | |||||||||||||||||||||||||||||||||||||||||
| 316 SS | Brass | Steel | |||||||||||||||||||||||||||||||||||||||||
| 1 | Handle | Anodized aluminum or stainless steel or black knob | |||||||||||||||||||||||||||||||||||||||||
| 2 | Set Screw | Stainless steel | |||||||||||||||||||||||||||||||||||||||||
| 3 | Packing Bolt | 304 SS/A276 | Brass C36000/B16 | Alloy 400/B164 | |||||||||||||||||||||||||||||||||||||||
| 4 | Washer | 316 SS/A276 | |||||||||||||||||||||||||||||||||||||||||
| 5 | Packing Spring | S17700/A693 | |||||||||||||||||||||||||||||||||||||||||
| 6 | Washer | 316 SS/A276 | |||||||||||||||||||||||||||||||||||||||||
| 7 | Upper Packing | PTFE/PEEK | |||||||||||||||||||||||||||||||||||||||||
| 8 | Lower Packing | ||||||||||||||||||||||||||||||||||||||||||
| 9 | Packing Washer | 316 SS/A276 | |||||||||||||||||||||||||||||||||||||||||
| 10 | Panel Nut | 17-4PH | |||||||||||||||||||||||||||||||||||||||||
| 11a | Stem | Chrome-plated 316 SS/A276 | |||||||||||||||||||||||||||||||||||||||||
| 11b | Stem | PCTFE/D1430 | PEEK | ||||||||||||||||||||||||||||||||||||||||
| 11c | Stem | Chrome-plated 316 SS/A276 | |||||||||||||||||||||||||||||||||||||||||
| 12 | Body | 316 SS/A182 | Brass C37700/B283 | Alloy | |||||||||||||||||||||||||||||||||||||||
BN Series Integral Bonnet Needle Valve Dimensions:
| Basic Ordering Number |
Connection Type and Size | Orifice in.(mm) | Cv | Dimension, in.(mm) | |||||||
| Inlet | Outlet | L1 | L2 | C | D | E | F | H | |||
| -BN-FN2-3 | 1/8 Female NPT | 1/8 Female NPT | 0.12 (3.0) |
0.20 | 0.97 (24.6) |
0.97 (24.6) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-FN4-4 | 1/4 Female NPT | 1/4 Female NPT | 0.16 (4.0) |
0.35 | 1.06 (27.0) |
1.06 (27.0) |
0.50 (12.7) |
1.38 (35.0) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FN6-5 | 3/8 Female NPT | 3/8 Female NPT | 0.2 (5.1) |
0.56 | 1.06 (27.0) |
1.06 (27.0) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FN8-6 | 1/2 Female NPT | 1/2 Female NPT | 0.25 (6.4) |
0.70 | 1.50 (38.1) |
1.50 (38.1) |
0.75 (19.1) |
1.88 (47.8) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-FN12-7 | 3/4 Female NPT | 3/4 Female NPT | 0.29 (7.5) |
0.95 | 1.63 (41.3) |
1.63 (41.3) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-MN2-3 | 1/8 Male NPT | 1/8 Male NPT | 0.08 (3.0) |
0.20 | 0.81 (21.6) |
0.81 (21.6) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MN4-4 | 1/4 Male NPT | 1/4 Male NPT | 0.16 (4.0) |
0.35 | 0.98 (25.0) |
0.98 (25.0) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MN6-5 | 3/8 Male NPT | 3/8 Male NPT | 0.2 (5.1) |
0.56 | 1.12 (28.4) |
1.12 (28.4) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MN8-6 | 1/2 Male NPT | 1/2 Male NPT | 0.25 (6.4) |
0.70 | 1.50 (38.1) |
1.50 (38.1) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MN12-7 | 3/4 Male NPT | 3/4 Male NPT | 0.29 (7.5) |
0.95 | 1.63 (41.3) |
1.63 (41.3) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-FT2-2 | 1/8” Tube | 1/8” Tube | 0.12 (3.0) |
0.20 | 0.98 (25.0) |
0.98 (25.0) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-FT4-4 | 1/4” Tube | 1/4” Tube | 0.16 (4.0) |
0.35 | 1.12 (28.4) |
1.12 (28.4) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-FT6-5 | 3/8” Tube | 3/8” Tube | 0.20 (5.1) |
0.56 | 1.29 (32.8) |
1.29 (32.8) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FT8-6 | 1/2” Tube | 1/2” Tube | 0.25 (6.4) |
0.70 | 1.40 (35.6) |
1.40 (35.6) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FT12-7 | 3/4” Tube | 3/4” Tube | 0.29 (7.5) |
0.95 | 1.90 (48.3) |
1.90 (48.3) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-MT3-2 | 3 mm | 3 mm | 0.08 (2.0) |
0.09 | 0.98 (25.0) |
0.98 (25.0) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MT6-4 | 6 mm | 6 mm | 0.16 (4.0) |
0.35 | 1.12 (28.4) |
1.12 (28.4) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MT8-4 | 8 mm | 8 mm | 0.16 (4.0) |
0.35 | 1.17 (29.6) |
1.17 (29.6) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MT10-5 | 10 mm | 10 mm | 0.20 (5.1) |
0.56 | 1.29 (32.8) |
1.29 (32.8) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MT12-6 | 12 mm | 12 mm | 0.25 (6.4) |
0.70 | 1.40 (35.6) |
1.40 (35.6) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MT14-6 | 14 mm | 14 mm | 0.25 (6.4) |
0.70 | 1.56 (39.7) |
1.56 (39.7) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MT18-7 | 18 mm | 18 mm | 0.29 (7.5) |
0.95 | 1.75 (44.5) |
1.75 (44.5) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-MT20-7 | 20 mm | 20 mm | 0.29 (7.5) |
0.95 | 1.90 (48.3) |
1.90 (48.3) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
BN 3-Way Series Integral Bonnet Needle Valve Dimensions:
| Basic Ordering Number | Connection Type and Size | Orifice in(mm) | Cv | Dimension, in.(mm) | |||||||
| Inlet | Outlet | L1 | L2 | C | D | E | F | H | |||
| -BN-FN2-3-3W | 1/8 Female NPT | 1/8 Female NPT | 0.12 (3.0) |
0.20 | 0.81 (21.6) |
0.81 (21.6) |
0.39 (10.0) |
2.50 (63.5) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-FN4-4-3W | 1/4 Female NPT | 1/4 Female NPT | 0.16 (4.0) |
0.35 | 1.06 (27.0) |
1.06 (27.0) |
0.50 (12.7) |
2.97 (75.5) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FN6-5-3W | 3/8 Female NPT | 3/8 Female NPT | 0.2 (5.1) |
0.56 | 1.06 (27.0) |
1.06 (27.0) |
0.50 (12.7) |
2.97 (75.5) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FN8-6-3W | 1/2 Female NPT | 1/2 Female NPT | 0.25 (6.4) |
0.70 | 1.50 (38.1) |
1.50 (38.1) |
0.75 (19.1) |
3.91 (93.3) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-FN12-7-3W | 3/4 Female NPT | 3/4 Female NPT | 0.29 (7.5) |
0.95 | 1.63 (41.3) |
1.63 (41.3) |
0.75 (19.1) |
3.91 (93.3) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-MN2-3-3W | 1/8 Male NPT | 1/8 Male NPT | 0.08 (3.0) |
0.20 | 0.81 (21.6) |
0.81 (21.6) |
0.39 (10.0) |
2.50 (63.5) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MN4-4-3W | 1/4 Male NPT | 1/4 Male NPT | 0.16 (4.0) |
0.35 | 0.98 (25.0) |
0.98 (25.0) |
0.39 (10.0) |
2.50 (63.5) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MN6-5-3W | 3/8 Male NPT | 3/8 Male NPT | 0.2 (5.1) |
0.56 | 1.12 (28.4) |
1.12 (28.4) |
0.50 (12.7) |
2.97 (75.5) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MN8-6-3W | 1/2 Male NPT | 1/2 Male NPT | 0.25 (6.4) |
0.70 | 1.50 (38.1) |
1.50 (38.1) |
0.50 (12.7) |
2.97 (75.5) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MN12-7-3W | 3/4 Male NPT | 3/4 Male NPT | 0.29 (7.5) |
0.95 | 1.63 (41.3) |
1.63 (41.3) |
0.75 (19.1) |
3.91 (93.3) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-FT2-2-3W | 1/8” Tube | 1/8” Tube | 0.12 (3.0) |
0.20 | 0.98 (25.0) |
0.98 (25.0) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-FT4-4-3W | 1/4” Tube | 1/4” Tube | 0.16 (4.0) |
0.35 | 1.12 (28.4) |
1.12 (28.4) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-FT6-5-3W | 3/8” Tube | 3/8” Tube | 0.20 (5.1) |
0.56 | 1.29 (32.8) |
1.29 (32.8) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FT8-6-3W | 1/2” Tube | 1/2” Tube | 0.25 (6.4) |
0.70 | 1.40 (35.6) |
1.40 (35.6) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-FT12-9-3W | 3/4” Tube | 3/4” Tube | 0.29 (7.5) |
0.95 | 1.90 (48.3) |
1.90 (48.3) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-MT3-2-3W | 3 mm | 3 mm | 0.08 (2.0) |
0.09 | 0.98 (25.0) |
0.98 (25.0) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MT6-4-3W | 6 mm | 6 mm | 0.16 (4.0) |
0.35 | 1.12 (28.4) |
1.12 (28.4) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MT8-4-3W | 8 mm | 8 mm | 0.16 (4.0) |
0.35 | 1.17 (29.6) |
1.17 (29.6) |
0.39 (10.0) |
1.38 (35.0) |
0.44 (11.2) |
0.53 (13.5) |
2.50 (63.5) |
| -BN-MT10-5-3W | 10 mm | 10 mm | 0.20 (5.1) |
0.56 | 1.29 (32.8) |
1.29 (32.8) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MT12-6-3W | 12 mm | 12 mm | 0.25 (6.4) |
0.70 | 1.40 (35.6) |
1.40 (35.6) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MT14-6-3W | 14 mm | 14 mm | 0.25 (6.4) |
0.70 | 1.56 (39.7) |
1.56 (39.7) |
0.50 (12.7) |
1.88 (47.8) |
0.50 (12.7) |
0.78 (19.8) |
2.97 (75.5) |
| -BN-MT18-7-3W | 18 mm | 18 mm | 0.29 (7.5) |
0.95 | 1.75 (44.5) |
1.75 (44.5) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
| -BN-MT20-7-3W | 20 mm | 20 mm | 0.29 (7.5) |
0.95 | 1.90 (48.3) |
1.90 (48.3) |
0.75 (19.1) |
3.00 (76.2) |
0.75 (19.1) |
1.03 (26.2) |
3.91 (93.3) |
Advantages of Integral Bonnet Needle Valves:
1. Strength and durability: Integral bonnet needle valves are constructed with a single-piece body and bonnet, which eliminates the need for a separate threaded connection between the two. This makes them stronger and more durable than needle valves with two-piece bodies, which are more susceptible to leaks and failures.
2. Leak resistance: Integral bonnet needle valves are also better at preventing leaks than two-piece needle valves. This is because the single-piece body and bonnet eliminate the potential for leaks at the threaded connection between the two.
3. Compact size: Integral bonnet needle valves are typically more compact than two-piece needle valves. This is because they do not require the extra space for the threaded connection between the body and bonnet.
4. Ease of maintenance: Integral bonnet needle valves are easier to maintain than two-piece needle valves. This is because they do not require disassembly to access the packing gland.
In addition to these general advantages, integral bonnet needle valves also offer a number of specific benefits for specific applications. For example, integral bonnet needle valves are often used in high-pressure and high-temperature applications because of their strength and durability. They are also commonly used in applications where leak resistance is critical, such as in the food and beverage industry and the pharmaceutical industry.
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Typical Applications of Integral Bonnet Needle Valves:
Integral bonnet needle valves are a type of needle valve in which the bonnet and body are made as a single piece. This makes them more sturdy and durable than other types of needle valves and also makes them less likely to leak.
Integral bonnet needle valves are typically used in applications where precise flow control is required, such as:
- Instrumentation and control systems: Integral bonnet needle valves are often used in instrumentation and control systems to regulate the flow of fluids and gases to instruments, such as pressure gauges, flow meters, and control valves.
- Laboratories: Integral bonnet needle valves are also commonly used in laboratories to control the flow of fluids and gases in experiments.
- Chemical processing: Integral bonnet needle valves are used in chemical processing applications to regulate the flow of corrosive and hazardous chemicals.
- Oil and gas: Integral bonnet needle valves are used in oil and gas applications to regulate the flow of oil, gas, and other fluids in wellhead and production equipment.
- Power generation: Integral bonnet needle valves are used in power generation applications to regulate the flow of fluids and gases in boilers, turbines, and other power plant equipment.
Integral bonnet needle valves are available in a variety of materials, including stainless steel, brass, and PVC. They are also available in a variety of sizes and end connections to meet the needs of a wide range of applications.
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China Needle Valve Manufacturers
We're well-known as one of the leading needle valve manufacturers and suppliers, specializing in providing different kinds of fittings, instrument valves, and flanges. We warmly welcome you to buy high-quality needle valves in stock from our factory. Integral bonnet needle valves,, integral forged needle valves, forged needle valves, union bonnet needle valves, rising plug valves, gauge valves.
1. We established in July 2008.
2. We are a professional manufacturer of Instrumentation Tube Fittings, Pipe Fittings, Needle valves, Ball Valves, Check Valves, Valve Manifolds, DIN 2353 Fittings, SAE Flanges, Sampling systems, and Water Heater Accessories.
3. Products are available in a variety of different materials, such as Carbon Steel, Stainless steel 316/316L, Duplex, Super Duplex, Hastelloy, Monel, Inconel, Incoloy, and Titanium.
4. We are located in Hangzhou City, 2 two-hour drive to Shanghai, with convenient transportation access worldwide.
5. Our products are widely used in industries of Chemical, Petrochemical, Power Generation, Oil, Gas, and Shipbuilding.
6. Always available to discuss your requirements and ensure full customer satisfaction.
7. We have more than 50 CNC machines, 3D measurement equipment, Raw Material chemical composition inspection equipment, High-pressure test equipment, etc.
8. We have obtained ISO9001 and CE certificates and more than twenty utility model patents.
9. Our products are exported to the United States, Japan, Germany, South America, South Africa, Southeast Asia, and many other countries.
10. We also welcome OEM and ODM orders. Please feel free to contact and visit us.
Additional information
| Editor | Yjx |
|---|
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.
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