Ua hoʻokumu ʻia ʻo NSEN i ka makahiki 1983, me ka loea i ke kahua o nā kiwikā pepeke eccentric. Ma hope o nā makahiki o ka ʻimi ʻana a me ka hoʻomaʻamaʻa ʻana, ua hoʻokumu ʻia nā huahana i loaʻa ma lalo nei:

• Kiwikā pulelehua eccentric ʻekolu
• Kiwikā pulelehua hana kiʻekiʻe
• Kiwikā pepeke metala i ka metala
• -196℃ kiwikā pepeke Cryogenic
• Kiwikā pulelehua pale ahi kiʻekiʻe
• Kiwikā pulelehua Damper
• Kiwikā pulelehua kū'ē i ka wai kai

Ma ke kahua ʻoihana, e kālele ana i nā kiwikā pepeke. Ke hoʻomaikaʻi mau nei ʻo NSEN i kāna mau hōʻoia ponoʻī a ke hōʻike nei i kona ikaika.

• Palapala Hōʻoia ʻōnaehana

CE (PED)

ISO 9001

ISO 14001

ISO 45001

• Palapala Hōʻoia no ke Ahi

API 607

• Palapala Hōʻoia Hoʻokuʻu Haʻahaʻa

API 641

ISO 15848-1

TA-LUFT

• Palapala Hōʻoia Lūkini

TR CU 010 / 032

• Palapala hōʻoia hoʻāʻo TPI

Hōʻike Hoʻāʻo Valve Pepeiao Cryogenic -196

Hōʻike Hoʻāʻo ʻo Neutral Salt Spray (NSS)

Hōʻike Hoʻāʻo Intergranular Corrosion (IGC)