Dish-shaped (butterfly-shaped) pipe cap
The core purpose of the butterfly-shaped pipe cap is the end sealing and closing treatment of various industrial pipelines and pressure vessels. It is mainly used to seal idle pipeline ports, reserved interfaces, and equipment terminal pipe
Inquiry
- The biggest core advantages of our company's dished head pipe caps are excellent craftsmanship and extremely good sealing performance
- Integrated spin-press forming process
- Seamless one-piece body with no welded joints
- fundamentally eliminating leakage and cracking problems from the root
- compared with ordinary pipe caps, pressure resistance and sealing performance are improved by more than 30%. The product material is authentic
Detailed Introduction
The curved surface radian of the dished pipe cap is gentler than that of the elliptical pipe cap, making it suitable for pipe end sealing under low-pressure and normal-temperature working conditions, with higher cost-effectiveness. The dished pipe caps we produce comply with GB/T12459, ASME B16.9, and DIN2617 standards, with materials covering carbon steel, stainless steel, and alloy steel, nominal diameters from DN15 to DN2000, wall thicknesses from 2.5mm to 60mm, and pressure ratings of PN10-PN64 and Class150-Class900. The products are formed by integrated spinning or stamping, with no spliced welds, and are used to seal idle pipe ports, reserved interfaces, and equipment terminal pipe openings, preventing impurities and moisture from entering the interior of the pipes. The MOQ for regular in-stock models is 1 piece, and sample procurement and small-quantity replenishment are supported.
- Integrated spinning or stamping forming, with no spliced welds throughout the body, reducing the risk of leakage and cracking
- The curved surface radian is gentle, suitable for low-pressure, large-diameter pipe sealing, and the procurement cost is lower than that of elliptical pipe caps
- Complies with GB/T12459, ASME B16.9, and DIN2617 standards, suitable for pipeline installation requirements in multiple countries
- Materials cover carbon steel, stainless steel, and alloy steel, and special materials such as duplex steel and titanium can be customized
- Nominal diameter DN15-DN2000, wall thickness 2.5mm-60mm, supporting customization of non-standard diameters and special-shaped radians
- The MOQ for regular in-stock standard models is 1 piece, and sample procurement and small-quantity engineering replenishment are supported
| Product Name | Dish-shaped (Butterfly) Pipe Cap |
| Categories | Contact Us to Confirm |
| The key standard parameters of the butterfly pipe cap are fully compliant, with a nominal diameter range of DN15-DN2000 and a wall thickness range of 2.5mm-60mm, which can be freely selected according to pressure requirements. Suitable working temperature | Carbon steel material -20℃ to 450℃, stainless steel material -80℃ to 600℃, can meet complex high and low temperature working conditions. Nominal pressure covers PN10-PN64, Class150-Class900, stable pressure bearing without deformation. Implementation standards are GB/T12459, ASME B16.9, DIN2617 international general standards. Forming process is integrated spinning/stamping forming, connection methods are mainly butt welding and socket welding. Surface treatment is divided into sandblasting rust removal, black paint anti-corrosion, stainless steel natural color polishing, galvanizing treatment, etc. End face treatment is standard bevel, suitable for seamless welding installation. Ovality, wall thickness deviation, flatness are strictly controlled within the allowable error range of national standards, all parameters can provide inspection reports |
| Customization | Our company has comprehensive non-standard customization capabilities for butterfly pipe caps, can precisely match customers' personalized working conditions and engineering needs. Supports specification customization: can customize DN15-DN2000 any non-standard diameter, special wall thickness, special-shaped curvature butterfly pipe caps, suitable for special pipeline sizes. Supports material customization: in addition to conventional carbon steel and stainless steel, can customize duplex steel, Hastelloy, titanium alloy and other special corrosion-resistant materials. Supports process customization: can customize thickened pressure-resistant, high-temperature resistant, low-temperature resistant special styles, supports internal and external anti-corrosion treatment, polishing, galvanizing, plastic coating and other special surface processes. Supports parameter customization: can adjust pressure rating, curved surface curvature, bevel style according to customer needs, suitable for special equipment head installation. Also supports packaging marks, LOGO, product labels |
| MOQ | To adapt to different customers' procurement needs, our company's butterfly pipe caps have flexible minimum order quantity standards, conventional in-stock standard models MOQ is 1 piece, supports customer sample procurement, scattered engineering replenishment, sample testing procurement, greatly reducing the cooperation threshold for small and medium buyers and foreign trade trial order customers. Conventional general diameter DN50-DN600 conventional pressure models, bulk procurement MOQ is |
| Lead Time | Our company has large-scale standardized pipe fitting production workshops and sufficient in-stock warehousing, butterfly pipe cap delivery is efficient and stable, extremely fast adapting to foreign trade order delivery. Conventional national standard, American standard standard models, conventional diameter in-stock products, can complete shipment within 24-48 hours after payment confirmation, domestic land transportation 3-5 days delivery, cross-border sea freight, air freight can quickly schedule shipment. Conventional mass production standard orders |
| Packaging | Our company's butterfly pipe caps use industrial standardized export-specific packaging, ensuring no wear, no collision, no rust during the entire transportation process, suitable for sea freight, land freight, air freight various cross-border transportation scenarios. Small diameter pipe caps use waterproof plastic film individually wrapped, interior filled with shock-absorbing foam, avoiding friction scratches and deformation damage during transportation; medium and large diameter pipe caps use multi-layer waterproof rainproof cloth wrapping, ports equipped with anti-collision protective rings, dust plugs, protecting welding bevels and port precision. Bulk full-order goods uniformly loaded into solid wood pallets or fumigated wooden frames for fixation, pallets reinforced with packing straps, wrapped with stretch film, preventing scattering and displacement during transportation. All packaging supports export fumigation-free standards, meets customs inspection requirements, no need for secondary fumigation, saving customs clearance time. Outer packaging can print customer LOG |
| Reference Price | Inquiry |
Applications
- End capping and reserved interface sealing of factory pipeline systems in oil and gas, chemical, coal chemical, electric power, etc.
- Terminal capping and engineering completion of municipal water supply and drainage networks, heating networks, gas transmission networks
- Head fitting installation of boilers, pressure vessels, heat exchangers, storage tanks and other equipment
- Temporary or permanent pipe end sealing during pipeline modification, engineering maintenance, and equipment shutdown
- Standard model stocking and overseas distribution for foreign trade B2B traders and cross-border pipe fitting distributors
Overview
The dished pipe cap is a pipe fitting used for end sealing in pipeline systems, and is a dedicated accessory for pressure vessel supporting components. Its curved surface arc is gentler than that of an elliptical pipe cap, mainly suitable for low-pressure, large-diameter pipeline sealing scenarios. Our dished pipe caps are formed by integrated stamping or spinning processes, with no spliced welds throughout the body, used to seal idle pipe ends, reserved interfaces, and equipment terminal nozzles, blocking medium flow and preventing impurities, dust, and moisture from entering the interior of the pipeline. The products comply with GB/T12459, ASME B16.9, and DIN2617 standards, with materials covering carbon steel, stainless steel, and alloy steel, and can connect to straight pipes, elbows, tees, and other pipe fittings.
Key Features
The core advantages of the dished pipe cap lie in its craftsmanship and sealing performance. We use integrated spinning or stamping forming, with no spliced welds throughout the product body, fundamentally reducing the risk of leakage and cracking. Raw materials come from large steel mills, with material composition meeting standards, corrosion-resistant, aging-resistant, and not easily deformed. The curved surface arc is gentle, making it more cost-effective than elliptical pipe caps under low-pressure and normal-temperature working conditions. The product's nominal diameter covers DN15-DN2000, wall thickness 2.5mm-60mm, and pressure rating covers PN10-PN64 and Class150-Class900, which can be selected according to pressure requirements. We support customization of non-standard diameters, special wall thicknesses, special-shaped arcs, special materials, and special surface processes.
Applications
The dished pipe cap is suitable for multiple types of sealing scenarios in industrial pipelines and equipment. In the industrial field, it can be used for sealing pipeline systems in factories such as petroleum, natural gas, chemical engineering, coal chemical engineering, electric power, new energy, and metallurgical mining, suitable for conventional working conditions such as corrosive media, normal temperature and pressure, and low temperature and low pressure. Municipal engineering covers terminal sealing, pipeline modification, and project completion for urban water supply and drainage networks, heating networks, and gas transmission networks. Special equipment can be used for head installation supporting of boilers, pressure vessels, heat exchange equipment, and oil and gas storage tanks. It is also suitable for pipeline scenarios in ship shipping, marine engineering, sewage treatment, pharmaceuticals, and food processing, as well as outdoor open-air pipelines, factory buried pipelines, and indoor equipment pipelines.
Specifications
Nominal diameter DN15-DN2000, wall thickness 2.5mm-60mm, pressure rating PN10-PN64, Class150-Class900. Carbon steel material working temperature -20℃ to 450℃, stainless steel material -80℃ to 600℃. Executive standards are GB/T12459, ASME B16.9, DIN2617. Forming process is integrated spinning or stamping forming, and connection methods are mainly butt welding and socket welding. Surface treatment options include sandblasting and rust removal, black paint anti-corrosion, stainless steel natural color polishing, galvanizing, etc. End face treatment is standard beveling, suitable for seamless welding installation. Ovality, wall thickness deviation, and flatness are controlled within the allowable error range of national standards. For special diameters, wall thicknesses, materials, and pressure ratings, please contact us for confirmation.
Purchasing & Delivery
The MOQ for conventional in-stock standard models is 1 piece, supporting sample procurement, scattered engineering replenishment, and sample testing procurement. For conventional national standard and American standard models and conventional diameter in-stock products, shipment is completed within 24-48 hours after payment confirmation, domestic land transportation delivers in 3-5 days, and cross-border sea and air transportation can be scheduled quickly. For customized orders, please contact us to confirm the delivery time and MOQ. Packaging uses export-specific standards: small diameters are individually wrapped in waterproof plastic film and filled with shock-absorbing foam, medium and large diameters are wrapped in multi-layer waterproof and rainproof cloth, ports are equipped with anti-collision protective rings and dust plugs, and bulk full orders are loaded into solid wood pallets or fumigated wooden frames for fixation. The outer packaging can be printed with customer LOGO, product model, specifications, quantity, and shipping marks.
Service & Support
We provide pre-sales selection assistance, parameter matching, and working condition adaptation analysis for customers purchasing dished pipe caps, and provide installation guidance and problem answering after sales. Products undergo multiple quality inspections before leaving the factory. If factory issues such as material mismatch, dimensional deviation, or quality defects occur, we unconditionally provide free returns, exchanges, or replacement goods, and bear the logistics costs. After order shipment, we provide full-process logistics tracking and assist customers with customs clearance and receipt. The product warranty period is 18 months. During the warranty period, for quality problems caused by non-human damage, we provide free repair or replenishment services. We have a dedicated foreign trade after-sales liaison specialist, responding to customer inquiries and after-sales requests 7×24 hours.
FAQ
What is the difference between a dished pipe cap and an elliptical pipe cap?
The dished pipe cap has a flatter curved surface, is pressure-resistant and suitable for low-pressure and normal-temperature working conditions, and is more cost-effective; the elliptical pipe cap has stronger pressure-bearing performance and is suitable for high-pressure equipment. The two are suited to different working conditions, and for conventional pipeline plugging, the dished pipe cap is preferred.
What materials and diameters are supported for the dished pipe cap?
Conventional materials cover carbon steel, stainless steel, and alloy steel, and special corrosion-resistant materials such as duplex steel, Hastelloy, and titanium alloy can be customized. Nominal diameter DN15-DN2000, wall thickness 2.5mm-60mm. For special diameters, wall thicknesses, and materials, please contact us to confirm.
What are the minimum order quantity and delivery time for the dished pipe cap?
The MOQ for conventional in-stock standard models is 1 piece, and sample purchases and small scattered replenishment are supported. For conventional standard models, shipment is made within 24-48 hours after payment confirmation, and domestic land transport delivery takes 3-5 days. For the MOQ and delivery time of customized orders, please contact us to confirm.
Can the dished pipe cap be customized to non-standard sizes?
Yes. We support customization of any non-standard diameter from DN15-DN2000, special wall thicknesses, and irregular curvatures, and also support customization of materials, processes, pressure ratings, curved surface curvature, bevel styles, and packaging marks. Please provide drawings, samples, or engineering parameters, and we will assist in confirming the solution.
What are the packaging and after-sales service for dish-shaped pipe caps?
Export-specific packaging is used: small diameters are wrapped in waterproof plastic film plus shock-absorbing foam; medium and large diameters use multi-layer waterproof and rainproof cloth plus anti-collision protective rings, and bulk quantities are secured on solid wood pallets or fumigated wooden frames. The product warranty period is 18 months. During the warranty period, quality problems caused by non-human damage are repaired or replenished free of charge.
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