ACCESSORIES
For Gas Pressure Regulators
Vent Limiting Devices
Maxitrol vent limiting devices eliminate the need to run vent piping to the outside. They are designed for use indoors and in spaces where limiting the amount of gas escapement due to diaphragm failure is critical. Vent limiting devices should not be used outdoors if they are exposed to the environment. Ball check permits unobstructed inhalation for fast regulator diaphragm response on opening cycle, but limits gas escapement to be within ANSI and EN 88 requirements should a diaphragm rupture.
| Model | Thread | Use on … |
| 12A04 | ⅛” NPT | RV48, RV52, RV53, RV61, R400(S), R500(S), R600(S) |
| 12A09 | ⅛” NPT | 325–3, 325–3L; OPD48, OPD600 |
| 12A34 | ⅜” NPT | RV81 |
| 12A39 | ⅜” NPT | 325–5, 325–5L; OPD210D |
| 12A49 | ½” NPT | 325–7A, 325–7AL, 325–9, 325–9L; OPD210E |
Vent Protectors
Designed for outdoor applications. Use on vent opening to protect breather hole from rain, snow, dust, insects and other foreign particles.
| Model | Thread | Use 0n … |
| 13A30-50 |
⅛” NPT | 325–3, 325–3L, RV48, RV52, RV53, RV61, R500(S)(Z), R600(S)(Z) |
| 13A31-50 |
⅜” NPT | 325–5, 325–5L, RV81, 210D |
| 13A32-50 |
½” NPT | 325–7A, 325–7AL, 325–9, 325–9L, RV91, 210E |
| 13A33-10 | ¾” NPT | 325–11, 325–11L, 210G, RV111 |
Vent Limiting Orifice
Orifice hole is on side of body, under head. Fixed orifice equally limits inhalation and escapement.
| Model | Thread | Use on … |
| 12A06 | ⅛” NPT | RV48, RV52, RV53, RV61, R400(S), R500(S), R600(S) |
Vent Tube Connectors
Threaded sleeve — two-piece assembly where the nut is tightened inside male connector.
| Model | Thread |
| 11A03 | Connects ⅛” female pipe thread to ⅛” O.D. tubing |
| 11A04 | Connects ⅛” female pipe thread to ¼” O.D. tubing |
Threaded sleeve nut — for RV20V
| Model | Thread |
| 11A08 | 5/16–24 threaded sleeve nut for ⅛” O.D. tubing |
Compression fitting — where nut and sleeve are slipped over tubing and tightened into fitting body
| Model | Thread |
| 11A05-42 | Connects ¼” female pipe thread to ¼” O.D. tubing |
| 11A05-61 | Connects ⅛” female pipe thread to ⅛” O.D. tubing |
| 11A05-63 | Connects ⅜” female pipe thread to ⅜” O.D. tubing |
| 11A05-64 | Connects ½” female pipe thread to ⅜” O.D. tubing |
Tamper Proof Seals
Permanent pressure sensitive backed paper. Attempted removal of these seals will destroy the face stock, leaving adhesive residue on surface beneath. Therefore, tampering can be easily detected. Available for all threaded models. Outlet pressure printed on seal.
| Model | Use on … |
| 101310 | RV12, RV20L, RV47, RV48, RV52, RV53, RV61, R400(S)(Z), R500(S)(Z), R600(S)(Z), 325–3, 325–5 |
| 101311 | RV81, RV91, RV111, 210D, 210E, 210G, 325–7A, 325–9 |
Vent Dampener
| Model | Use on … |
| KVOP‑3 | 325–5, 325–5L |
| KVOP‑4 | 325–7A, 325–7AL, 325–9L |
Vent Screen
Brass, 40 mesh screen flame arrestor for insertion in vent outlet. Prevents ignition of gas-air mixture which might be present in upper diaphragm chamber.
| Model | Thread |
| 13A03‑1 | For ⅛” NPT vent |
| 13A03‑2 | For ¼” NPT vent |
| 13A03‑3 | For ⅜” NPT vent |
| 13A03‑4 | For ½” NPT vent |
| 13A03‑6 | For ¾” NPT vent |
Pressure Tap Connector
Pressure tap connector installed as part of the control. It is a hose fitting incorporating a captured sealing means for testing inlet and outlet pressures. This eliminated the need for a special barb fitting.
| Model | Thread |
| PF10 | ⅛” NPT |
Dust Cap
Used on vent opening to prevent blockage of the breather hole from dust of other foreign particles. Press-in plastic cap.
| Model | Thread |
| 13A09 | For ⅛” NPT vent |
Top Loading Kits
Specifications:
Consists of vent fitting assemblies, union, connector, and tubing.
| Model | Thread |
| KMR212TL | MR212D, E, G |
| KMR212JTL | MR212J |
| Title | Description | Version | Download |
|---|---|---|---|
| Accessories (NA) | Catalog; Vent limiting devices, vent limiting orifice, vent tube connectors, vent protectors, vent screens, pressure tap connector. (excerpt) | 🇺🇸 North America, Imperial Units; GPR_MS_EN_09.2024 (Acccessories) | DownloadPreview |
| Accessories (EU/UK) | Catalog; Vent limiting devices, pressure tap connector, dust cap, tamper proof seals. (excerpt) | 🇬🇧 EU/UK, Metric Units; GDR.GF-LT-EN_09.2022 (Accessories) | DownloadPreview |
| Gas Pressure Regulator and Modulator Catalog (NA) | Catalog; Gas Pressure Regulators and Modulators (full catalog) | 🇺🇸 North America, Imperial Units; GPR_MS_EN_09.2024 | DownloadPreview |
| Gas Pressure Regulators and Filters Catalog (EU/UK) | Catalog; Gas Pressure Regulators and Filters (full catalog) | 🇬🇧 EU/UK, Metric Units; GDR.GF-LT-EN_09.2022 | DownloadPreview |
| Spring Selection Chart (NA) | Catalog; Complete spring selection chart. (excerpt) | 🇺🇸 North America, Imperial Units; GPR_MS_EN_09.2024 (Springs) | DownloadPreview |