Self-sealing fittings open automatically after they are assembled and they close automatically when they are dismantled from pipeline or equipment. And this design can eliminate the environment pollution possibility by preventing the pipe media from flowing out. This product can reduce operating cost and prevent sand from entering pipe and equipment which can protect pipe and equipment from mechanical wear. What's more, it reduces accident potential. And it is convenient to install and dismantle, which can reduce workers' workload and save working time. The material used meets the standard of ASTM and AISI fully. The product and parts are resistant to corrosion and high pressure and self-sealing fittings makes sealing highly reliable and they have excellent exchangeability. Self-sealing fitting can adjust itself automatically according to connection direction and it makes pipeline arrange in good order and it makes pipeline resistant to fatigue. Self-sealing fittings can be divided into three kinds according to structure: quick self-sealing steel ball fitting, hammer self-sealing union fitting and pin key plug-in self-sealing fitting. They are all used to connect pipes or equipment but they have different connection types.

Three hammer self-sealing union fittings.

Hammer self-sealing union fitting.A pin key plug-in self-sealing fitting is on the carton.

Pin key plug-in self-sealing fitting.

The parts of quick self-sealing steel ball fitting.

Quick self-sealing steel ball fitting parts.The parts of pin key plug-in self-sealing fitting.

Pin key plug-in self-sealing fitting parts.

Features of self-sealing fitting:

Open and close automatically.

Protect environment and pipe & equipment.

Save operating cost and operating time.

Reduce accident potential and workload.

Convenient to install and dismantle.

Resistant to corrosion and high pressure.

Reliable sealing.

Excellent exchangeability.

Adjust automatically.

The specification of self-sealing fitting

Part No. Nominal bore Total length Working pressure Test pressure Flow Threaded connection

mm mm MPa MPa L/min

SFSFG-01 6 62 52 78 16 M14 × 1.5

SFSFG-02 8 80 52 78 25 M16 × 1.5

SFSFG-03 10 90 52 78 40 M22 × 1.5

SFSFG-04 12 100 45 67.5 50 M27× 1.5

SFSFG-05 15 106 45 67.5 63 M30 × 1.5

SFSFG-06 20 110 45 67.5 100 M36 × 2/1" NPT

SFSFG-07 25 128 35 52.5 160 M42 × 2/1" NPT

SFSFG-08 32 160 35 52.5 250 M52 × 2

SFSFG-09 40 190 21 31.5 400 M60 × 2

SFSFG-10 51 204 16 24 630 M68 × 2

If you are interested please contact us via sales@hammerunion.org.