Katup pengaman jinis benang angkat rendah spring dimuat
A21F-16C, A21H-16C, A21H-40, A21H-64, A21Y-100, A21H-160
A21W-16P, A21W- 40P, A21F -40P, A21W-64P, A21W-100P, A21W-160P
KA21Y-16C, KA21Y-16P
A21Y-16R, A21Y-40R, A21 Y-64R, A21Y-100R, A21Y-160R
Jinis A21F, A21H-C digunakake kanggo peralatan lan pipa udara, amonia, gas petroleum, lan liya-liyane sing suhu kerja kurang saka 200 ° C. Tipe A21W-P, R digunakake kanggo peralatan lan pipa kualitas kanthi gas corrode lan medium cair apa suhu kerja kurang saka 200 ° C. Njupuk piranti proteksi tekanan ekstra.
Tipe KA21 Y digunakake kanggo gas petroleum cair sing suhu kerjane kurang saka 100°C.
