Nitrile 80 Shore A 4 Inch Hammer Union Lip Seal Rings With Stainless Steel Backing

4-Inch Nitrile 80 Shore A Hammer Union Lip Seal with Stainless Steel Backing

This lip seal is specified for a 4-inch nominal hammer union connection, using nitrile (NBR/Buna-N) rubber at nominal 80 Shore A with stainless steel backing. The lip provides contact with the union seat; the backing supports the rubber at the designed extrusion clearance. Match both components to the exact union figure and manufacturer drawing.

A 4-inch connection designation does not define the seal inner diameter, outer diameter or lip height. Provide the union identification, seal-pocket dimensions and backing-ring profile when replacing a seal. Lip seals and O-rings from different union designs must not be assumed interchangeable.
Specify the NBR compound using fluid formulation, additives, normal and peak temperature, pressure cycles and exposure duration. Identify the stainless steel grade and any required corrosion documentation. Nominal hardness and metal backing do not establish the pressure rating of the connection; sour-gas service needs separate compound-specific qualification. Other catalog sizes and materials require separate selection.

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.
Lip seating and backing fit: Inspect the lip for cuts and the backing ring for deformation. Check that the seal seats fully in the correct pocket without forcing or changing the profile.
Durable:Review rubber compatibility, compression requirements and backing clearance together. Specify acceptance criteria for lip dimensions, hardness and metal support.
Cost-effective: Hammer union seals are a cost-effective option for sealing hammer union-style pipe connections.
For a replacement quotation, send the 4-inch union figure, original part number or drawing, stainless steel grade, quantity and operating conditions.

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: