EWT series Hammer Union Seals are static seals, which are used in hammer union-style pipe connections to establish flow lines and prevent leakage. JST provides a number of compounds compatible with mud, crude oil and chemicals with acid or H2S.

JST offers two lines of hammer union seals, one from elastomer, another one from elastomer reinforced with anti extrusion ring which is normally used for high pressure.

Model:

Compound is chosen as per applications. If there's any special requirements on pressure, temperature, speed or chemicals, please contact us.

Technical Requirements:

- Working Pressure : ≤140MPa

- Working Temperature: -46℃~+200℃

Compound:

- Elastomer: HNBR/NBR/FKM

- Anti-extrusion Ring: Brass / Stainless Steel

Features:

- Suitable for high pressure

- Compatible with mud, crude oil and various chemicals of acid or H2S

- Fast installation

- Stable

- Good anti-extrusion ability with metal ring.