| RV-21A-40-A-C | Stainless Steel Tamper Resistant Cover. | 7 to 210 bar (70 bar Standard Setting) | | | |
| RV-21A-40-A-K (alternative for SUN RVCD-KAN) | Handknob with Lock Knob. | 7 to 210 bar (70 bar Standard Setting) | RVCD-KAN | | |
| RV-21A-40-A-L (alternative for SUN RVCD-LAN) | Leakproof hex. socket screw. | 7 to 210 bar (70 bar Standard Setting) | RVCD-LAN | | |
| RV-21A-40-B-C | Stainless Steel Tamper Resistant Cover. | 3.5 to 105 bar (70 bar Standard Setting) | | | |
| RV-21A-40-B-K (alternative for SUN RVCD-KBN) | Handknob with Lock Knob. | 3.5 to 105 bar (70 bar Standard Setting) | RVCD-KBN | | |
| RV-21A-40-B-L (alternative for SUN RVCD-LBN) | Leakproof hex. socket screw. | 3.5 to 105 bar (70 bar Standard Setting) | RVCD-LBN | | |
| RV-21A-40-C-C | Stainless Steel Tamper Resistant Cover. | 10.5 to 420 bar (70 bar Standard Setting) | | | |
| RV-21A-40-C-K (alternative for SUN RVCD-KCN) | Handknob with Lock Knob. | 10.5 to 420 bar (70 bar Standard Setting) | RVCD-KCN | | |
| RV-21A-40-C-L (alternative for SUN RVCD-LCN) | Leakproof hex. socket screw. | 10.5 to 420 bar (70 bar Standard Setting) | RVCD-LCN | | |
| RV-21A-40-D-C | Stainless Steel Tamper Resistant Cover. | 1.7 to 55 bar (28 bar Standard Setting) | | | |
| RV-21A-40-D-K (alternative for SUN RVCD-KDN) | Handknob with Lock Knob. | 1.7 to 55 bar (28 bar Standard Setting) | RVCD-KDN | | |
| RV-21A-40-D-L (alternative for SUN RVCD-LDN) | Leakproof hex. socket screw. | 1.7 to 55 bar (28 bar Standard Setting) | RVCD-LDN | | |
| RV-21A-40-E-C | Stainless Steel Tamper Resistant Cover. | 1.7 to 28 bar (14 bar Standard Setting) | | | |
| RV-21A-40-E-K (alternative for SUN RVCD-KEN) | Handknob with Lock Knob. | 1.7 to 28 bar (14 bar Standard Setting) | RVCD-KEN | | |
| RV-21A-40-E-L (alternative for SUN RVCD-LEN) | Leakproof hex. socket screw. | 1.7 to 28 bar (14 bar Standard Setting) | RVCD-LEN | | |
| RV-21A-40-W-C | Stainless Steel Tamper Resistant Cover. | 10.5 to 315 bar (70 bar Standard Setting) | | | |
| RV-21A-40-W-K (alternative for SUN RVCD-KWN) | Handknob with Lock Knob. | 10.5 to 315 bar (70 bar Standard Setting) | RVCD-KWN | | |
| RV-21A-40-W-L (alternative for SUN RVCD-LWN) | Leakproof hex. socket screw. | 10.5 to 315 bar (70 bar Standard Setting) | RVCD-LWN | | |
