Basic Info.
Product Description



Hammer union is a mechanical joint that connects two sections of pipe, valves, or other equipment in high-pressure fluid systems. These unions are designed for quick assembly and disassembly, allowing operators to efficiently modify or repair systems in the field.
Union seals are typically made of high-performance elastomers, NBR, FKM, or PTFE, chosen for their resistance to wear, heat, and pressure. These seals are crucial in applications where fluid leakage can cause environmental damage or system failure.
Size | 1" 1.5" 2" 3" 4" 6" 7" |
Material | Buna/FKM/HNBR/PTFE/PU |
Types | rubber/rubber+brass back-up/rubber+ss back-up |
Application | oil gas and chemical industries, oil exploration, drilling operations, chemical pipeline systems |
Feature | high-pressure and high-temperature resistant,chemical corrosion resistance |

Material name | Temperature range | Advantage | Deficiency |
NBR (Buna/Nitrile) | -40ºC to 120ºC -40ºF to 248ºF | 1.Presently the most widely used rubber in the seal industry 2.Exceptional balance of good mechanical properties, wear properties, and chemical resistance 3.Resistance to most mineral oils and greases | don't used with gly-based brake fluids and strong acids |
HNBR (HSN/ Hydrogenated Nitrile) | -40ºC to 160ºC -40ºF to 320ºF | 1.Chemical resistance 2.Wider temperature range than standard nitrile 3.High strength material that resists extrusion, abrasion, wear 4.Water and steam resistance to +149ºC(+300ºF) 5.H2S resistance up to 10% 6.Commonly used with petroleum oils and co2 | don't use with chlorinated hydrocarbons, polar solvents, or strong acids |
FKM (Fluorocarbon) | -26ºC to 230ºC -15ºF to 446ºF | 1.Excellent resistance to higher temperature, petroleum, and gas oline 2.Good chemical resistance, including to refrigerants(R12) 3.Great mechanical properties are retained over a wide temperature range 4.Commonly used with Am monia | Poor resistance to aromatic hydrocarbons, polar solvents, and to luene |
PTFE (Plyetrafuoroethylene) | -268ºC to 250ºC -450ºF to 483ºF | Vitually universal chemical resistance | High cost, relatively low mechanical strength, machining difficulty |
What we Shanghai Qinuo Industry Provide:
More pictures of our custom rubber products for reference:
Corner View of our factory:

We have two factories, more than 30 injection molding machines, molding machines and CNC lathes. Our office is located in Pudong New Area, Shanghai.
We adopt comprehensive quality management system, all components passed ISO9001, ROHS certification. Our products are mainly exported to the United States, Canada, Britain, Germany, New Zealand, Australia and other countries.


Our Service capability:
Customized services | Plastic & Rubber bonding | Mold Design | ||||||
Customized extrusion | Extrusion and bonded gaskets | Mold Production | ||||||
Injection Molding | Self Adhesive rubber profile | Customized Package | ||||||
Sheet Cutting | Rubber Complex Intake Hose | Problem Solving | ||||||
Standard Size extrusion | Reinforced rubber tubes | Assembly | ||||||
Special Compound design | Rubber Solution Suggestion | Sourcing | ||||||
Rubber& Metal bonding |
FAQ:
Q1: What is Hammer Union Seal?
A1: Hammer union seal, produced by SHQN, is a kind of sealing device used for pipeline connection, whose model number is Hammer union seals which is made in China.
Q2: What is the packaging of Hammer Union Seal?
A2: The packaging of Hammer Union Seal can be customized or standard packing.
Q3: What is the delivery time of Hammer Union Seal?
A3: The delivery time of Hammer Union Seal is about 15 days.
Q4: What is the material of Hammer Union Seal?
A4: Hammer Union Seal is made of high quality rubber compounds.
Q5: Are you manufacture or trading company?
We are manufacture. Our factory located in Haimen District, Nantong City, Jiangsu Province.