Figure 1502 Replacement Union Seals — NBR, FKM and HNBR with Metal Backup Options

Specify a replacement union seal using the hardware manufacturer, Figure 1502 designation, nominal connection size and seal drawing. Confirm whether the equipment uses a hammer union or a hammerless connection; the connection mechanism and seal arrangement must match the actual hardware.

NBR (Buna-N), FKM and HNBR are distinct compound options. Specify the required brass or stainless-steel backup separately, including grade and profile. An elastomer seal and a metal-backed seal are different constructions and should not be substituted without reviewing the union design.

Sealing performance depends on the matched hardware, seal profile, compound and installation. Provide fluid composition, temperature, pressure cycles and any required assembly test conditions with the replacement enquiry.

Union figures and sizes may require different lip profiles or O-ring arrangements. Confirm the exact drawing rather than assuming that seals for different figure numbers are interchangeable.
Available material enquiries include NBR, FKM and HNBR, with specified brass or stainless-steel backup options. Sour-gas applications require compound-specific qualification and service data; the material family alone does not establish approval.

Replacement selection considerations:

Hardware identification: Provide the union manufacturer, figure and connection mechanism. Check seal-seat dimensions and the installation instructions for the exact assembly.
Assembly verification: Confirm the required leakage and pressure test for the assembled union. A loose seal does not establish a pressure rating or guarantee leak-free service.
Compound review:Compare fluid exposure, operating temperature and pressure cycling with the selected compound data. Include sour-gas and decompression requirements where applicable.
Backup-ring specification:State brass or stainless steel, metal grade, dimensions and the required construction. Inspect the mating seat and backup arrangement during replacement.
Send the seal drawing, hardware reference and service conditions for replacement selection. Color and similar dimensions alone do not establish compatibility.

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: