Corrosion Resistance Flexible API Standard Hammer Union Lip Seal Rings

2-, 3- and 4-Inch Hammer Union Lip Seals — Brass or Stainless Steel Backing

These hammer union lip seals combine a rubber sealing profile with a brass or stainless steel backing option. The metal support helps control extrusion at the designed clearance; the rubber lip must fit the matching union seat. Select the backing and lip geometry using the union figure, manufacturer and approved drawing.

The 2-, 3- and 4-inch designations refer to nominal union connection sizes. Different union figures may use different lip seals or O-rings, so size alone does not establish fit. Provide the seal-pocket drawing, backing dimensions and union identification before choosing a replacement.
Choose NBR, FKM or HNBR by the exact fluid, temperature and exposure conditions. For the backing ring, specify brass composition or stainless steel grade and any required corrosion data. Metal type alone does not establish resistance to every process fluid. Sour-gas use and any requested API conformity require applicable requirements and supporting qualification documents for the actual product and assembly.

Here are some of the benefits of using hammer union seals:

Quick and easy installation: Hammer union seals are easy to install and remove. This makes them a convenient option for applications where it is important to be able to quickly connect and disconnect pipes.
Sealing contact and backing support: Match the lip seating surface and backing clearance to the union design. Inspect the rubber lip and metal support for damage before installation.
Durable:Review elastomer compatibility and backing-metal corrosion requirements together. Define pressure cycles, cleaning chemicals and replacement criteria for the service.
Cost-effective: Hammer union seals are a cost-effective option for sealing hammer union-style pipe connections.
Include the union figure, nominal size, seal drawing, backing-metal grade, fluid and operating conditions in your inquiry. Identify the specific standard and required documentation if conformity is requested.

What we Shanghai Qinuo Industry Provide:

Rubber O rings

• Rubber O rings -As568 series rubber o rings/JB standard rubber o rings.
• Encapsulated rubber o rings- silicone/ FKM rubber o rings
• PTFE coating rubber o rings-kinds of color rubber o rings

Hammer Union seals- 1" 1.5" 2" 3" 4" 6" 7"

• Rubber hammer union seals-Buna/FKM/HNBR rubber type
• Rubber w/brass or stainless steel back up types

Swab cups

• V types 4" 5.5" ect.
• TA type
• MV type
• NUF type
• TUF type

Rubber seal kits- custom packing or lable is available

• #10 setting tool - With burst disk
• #20 setting tool - With burst disk
• AP Compact Setting Tool Kit
• Grease Tubes Seal Kit
• 3 1/2” Shorty Kits
• 3 - 1/8" Weight Bar Kit
• #10 Baker Firing Head Kit
• #20 Firing Head Kit
• #20 BP3.SEC kits
• #10 BP3.SEC kits
• T-BRT redress kit
• T-1 Set
• GC Stripper Head Redress Kits

Wireline Component Parts:

1) Pressure Relief Disc, ZD Plated (application:rupture(bleeder) Disc)

2) Rubber Push Pin -black

3) Nylon Push Pin -natural

4) Retainer Nut, Steel, ZD Plated (Flat, beveled also available) (application: retainer nut)

5) Threaded Steel Plug, w/ Lathe Cut (application:5" port plug)

6) Threaded Brass Plug (application: setting tool plug )

Rubber Packer Elements:

Rubber Oil Savers:

FAQ: