Hydraulic bulging cross fittings are processed using a room-temperature hydraulic axial compensation bulging process, requiring no medium-frequency heating throughout the entire process, with no oxide scale, grain deformation, or welded splicing; the fitting maintains continuous material throughout, with smooth and flat inner and outer walls. The products comply with standards such as GB/T12459, ASME B16.9, GB/T13401, SH/T3408, etc., with diameters covering DN15–DN600 (NPS1/2”–NPS24), common wall thicknesses of STD, Sch40, Sch80, and materials including 20# carbon steel, 304 stainless steel, 316L stainless steel, and duplex steel. It is mainly used for four-way diversion, merging, and pressure-stabilized transportation in clean pipelines, sanitary-grade pipelines, and precision fluid systems, and can transport pure water, purified water, pharmaceutical liquids, food fluids, compressed air, room-temperature oils, and weakly acidic and weakly alkaline clean media. If the project involves ultra-high temperature, ultra-high wall thickness, or ultra-high pressure heavy-duty working conditions, it is recommended to contact us before selection to confirm applicability.
- Room-temperature cold-state one-piece forming, requiring no medium-frequency heating, with no oxide scale, decarburization layer, or welded splicing, and the material grains remain in their original state.
- The inner wall is smooth and flat, with lower flow resistance than hot-pushed cross fittings, not prone to scaling, suitable for pipelines with requirements for medium cleanliness.
- Strictly implements standards such as GB/T12459, ASME B16.9, GB/T13401, SH/T3408, etc., with diameters covering DN15–DN600.
- Common materials include 20# carbon steel, 304 stainless steel, 316L stainless steel, and duplex steel, which can match pure water, aseptic, and corrosion-resistant clean working conditions.
- Before leaving the factory, it undergoes polishing, inner wall cleaning, and degreasing and dust removal treatment; carbon steel parts are sprayed with anti-rust oil and wrapped in anti-rust paper, while stainless steel parts are individually isolated and packaged.
- Supports customization such as non-standard sizes, special wall thicknesses, reducing cross fittings, mirror polishing, pickling and passivation, and laser engraving, and can be produced according to drawings or technical agreements.
| Product Name | Hydraulic Bulge Formed Cross |
| Product Category | Cross |
| Customization | The factory has full-specification hydraulic bulging cross fitting precision non-standard customization capability, focusing on room-temperature clean, high-precision, high-appearance, special working condition premium cross fitting customization. Supports full-diameter DN15-DN600 non-standard sizes, special wall thicknesses, precision thickening, and non-conventional reducing ratio reducing cross fitting customization, adapting to the non-standard pipeline renovation needs of old clean pipe networks and imported precision equipment. Materials can be customized including 20# carbon steel, 304/316L stainless steel, duplex steel, copper-aluminum alloy, and other precision-formed materials, adapting to pure water, aseptic, and corrosion-resistant clean working conditions. Can customize extra-long short sections, special bevels, mirror-polished inner and outer walls, and fingerprint-free stainless steel clean treatment processes, meeting high-end sanitary-grade pipeline standards. Supports non-standard diversion angles, special-shaped transitions, and precision tolerance customization, strictly |
| MOQ | Hydraulic bulging cross fittings adopt a flexible minimum order model for clean pipe fittings, adapting to the diverse procurement needs of clean engineering small-batch replacement parts, precision equipment prototypes, project sporadic replacements, bulk centralized procurement, and foreign trade premium orders. Conventional national standard and American standard small and medium diameter STD, Sch40 carbon steel, and stainless steel hydraulic bulging cross fittings in stock specifications support a minimum order of 1 piece, fully satisfying clean pipeline network emergency repairs, precision equipment modification |
| Lead Time | Hydraulic bulging cross fittings establish a three-tier delivery system of premium in-stock fast shipping, conventional mass production, and precision non-standard customization, adapting to the industry characteristics of clean engineering with short construction periods, strict quality requirements, and high precision. The warehouse routinely stocks DN15-DN300 conventional wall thickness carbon steel and 304 stainless steel standard hydraulic bulging cross fittings in stock, with extremely fast shipping within 24-48 hours after order confirmation, satisfying clean construction site rush work, |
| Packaging | Hydraulic bulging cross fittings belong to precision clean-grade industrial pipe fittings, with extremely high requirements for surface and inner wall finish, adopting premium-grade dust-free moisture-proof scratch-proof packaging to eliminate dust, scratches, oxidation, and collision damage. All products undergo precision polishing, inner wall cleaning, degreasing and dust removal treatment before leaving the factory, thoroughly removing oil stains and impurities, ensuring the interior of the pipeline is clean with no residue. Carbon steel bulging cross fittings are sprayed with high-quality anti-rust oil and wrapped in dust-free anti-rust paper; stainless steel cross fittings are individually isolated and sealed to avoid scratches, carburization, and surface color difference contamination, with dust-free operation throughout the entire process. All precision pipe ends, welding bevels, and inner wall ports are fully equipped with thickened dust-proof and collision-proof plastic protective caps to eliminate dust entry and pipe end collision deformation. Small and medium diameter premium cross fittings are fully wrapped in dust-free bubble film and individually sealed in thickened premium cardboard boxes; medium |
| Reference Price | Inquiry |
| Product Type | Ambient Temperature Internal High Pressure Integrated Seamless Formed Butt-Welded Cross Fitting |
Applications
- Four-way distribution nodes in pharmaceutical purified water pipelines and aseptic process pipelines.
- Confluence and distribution in food and beverage transportation pipeline networks and sanitary-grade fluid pipelines.
- Precision distribution in ultrapure water equipment, reverse osmosis systems, and pure water transmission main pipes.
- Ultra-clean fluid pipelines in electronics factories and lithium battery cooling circulation pipelines.
- Central air conditioning circulating water and HVAC electromechanical pipeline networks in high-end buildings.
- Precision equipment pressure-stabilized conveying system and room-temperature clean industrial pipeline renovation project.
Procurement & Delivery
Hydraulic bulging cross fittings are scheduled for production and shipment according to orders. Conventional GB and American standard small and medium diameter STD, Sch40 carbon steel, and stainless steel stock specifications support a minimum order of 1 piece. The warehouse regularly stocks DN15-DN300 conventional wall thickness carbon steel and 304 stainless steel standard stock. Shipment is made within 24-48 hours after order confirmation. For non-standard customization, special materials, special wall thicknesses, and foreign trade orders, please contact us to confirm the delivery time. Packaging uses a dust-free, moisture-proof, and scratch-proof method. Carbon steel parts are sprayed with anti-rust oil and wrapped in anti-rust paper. Stainless steel parts are individually isolated and sealed. Pipe openings are fitted with dust-proof and impact-proof protective caps. Small and medium diameters use bubble wrap plus cartons. Medium and large diameters use solid wood pallets, steel strip reinforcement, and multi-layer stretch film. Foreign trade orders support customized English shipping marks, fumigated pallets, and independent clean packing lists.
Service & Support
We provide pre-sales clean working condition selection, material matching, flow resistance scheme optimization, precision drawing verification, and clean engineering budget guidance. During sales, we track cold forming, precision machining, dust-free cleaning, and packaging and shipping progress. After sales, we provide technical support for clean pipeline welding and installation, pipeline network cleaning and commissioning, troubleshooting, and operation and maintenance. Before leaving the factory, products undergo dust-free cleaning, fine appearance inspection, dimensional rechecking, and hydrostatic pressure testing. Genuine products enjoy a 12-month official warranty. During the warranty period, for quality problems such as dimensional deviation, surface defects, leakage defects, substandard materials, or poor forming caused by non-human overpressure or improper installation and use, we provide free remanufacturing, free replacement, and bear the round-trip logistics and engineering rework losses. Unused standard products support seven-day no-reason return and exchange, 2-hour rapid after-sales response, and lifetime free technical consulting services for clean pipe fittings.
FAQ
What are the core differences between hydraulic bulging cross fittings and hot-pushed cross fittings?
Hydraulic bulging cross fittings are formed in one piece by cold forming at room temperature, with no high-temperature oxidation, smooth and clean inner walls, no carbon deposits, and low flow resistance. They are mainly used for sanitary, precision, and clean room-temperature working conditions. Hot-pushed cross fittings are produced by high-temperature heating and pushing, have oxide scale on the inner wall and a blackened surface, and are suitable for high-temperature, high-pressure, heavy-load industrial working conditions, but not for clean pipelines. Clean engineering projects should give priority to hydraulic bulging cross fittings.
What media and working conditions can hydraulic bulging cross fittings be used for?
They can stably convey pure water, purified water, liquid medicine, food fluids, compressed air, room-temperature oil products, and weakly acidic and weakly alkaline clean media, and are suitable for room-temperature, low-temperature, and medium-temperature precision working conditions. If the project involves ultra-high temperature, ultra-high wall thickness, or ultra-high pressure heavy-load working conditions, it is recommended to contact us before selection to confirm whether they are suitable.
What are the delivery time and minimum order quantity for conventional specifications?
Standard stock specifications of conventional GB and American standard small and medium diameter STD, Sch40 carbon steel, and stainless steel support orders starting from 1 piece. The warehouse routinely stocks DN15-DN300 conventional wall thickness carbon steel and 304 stainless steel standard stock. After order confirmation, shipment is made within 24-48 hours. For non-standard customization, special materials, special wall thicknesses, and foreign trade orders, please contact us to confirm the delivery time.
Is non-standard customization supported?
We support customization of DN15-DN600 full-diameter non-standard sizes, special wall thicknesses, reducing crosses, mirror polishing, pickling and passivation, and laser engraving, and can produce according to customer drawings or technical agreements. For specific customization plans and delivery times, please contact us to confirm.
What inspections are performed before the products leave the factory?
All hydraulic bulged crosses undergo 100% dust-free cleaning, fine visual inspection, dimensional rechecking, and hydrostatic pressure testing before leaving the factory, strictly controlling clean quality and appearance.
How are warranty and after-sales service guaranteed?
Genuine products uniformly enjoy 12 months of official warranty service. During the warranty period, for quality issues such as dimensional deviation, surface defects, leakage defects, substandard material, or poor forming that occur under non-artificial overpressure or improper installation and use, we provide free remanufacturing, free replacement shipment, and bear round-trip logistics and engineering rework losses. Unused standard products support seven-day no-reason return and exchange, 2-hour rapid after-sales response, and lifelong free technical consulting service for clean pipe fittings.
