ContentsBroadcast
- Official Website ↗
- Description
- Download material
- Code map
- Contribute
- Competitive Models
- Manufacturer
- Send enquiry
- Vessels
- Spares
- Vendors
- Did you know
- Maintenance Schedule
Description
Global leader in PV relief valves, flame/detonation arresters and blanket gas regulators since 1960. Stafford (Houston), Texas, USA.
Manufacturer
Official site: https://www.grothcorp.com
Did you know
- Groth Corporation, founded in 1960, began manufacturing pressure/vacuum relief valves in 1971. The Groth 12 Series, a new generation of pressure/vacuum relief valves, was launched in May 2026, focusing on higher efficiency and lower emissions.
- The Groth 1200 series of Pressure/Vacuum Relief Valves are designed for standard tank protection against overpressure and excessive vacuum. The 1201B is a spring-loaded version of the 1200A for higher pressure applications (1 PSIG and above). The 1220A model is a variation of the 1200 series that includes a pipe-away feature for venting vapors away from the atmosphere. The newer 12E-TWW-0 and 12F-TWW-0 models are designed with enhanced sealing and higher flow capacities, utilizing 10% overpressure technology. The 1400 Series Pilot-Operated Relief Valves offer improved efficiency and reduced evaporation losses compared to traditional weight or spring-loaded valves.
- Groth PV valves are chosen for their ability to protect tanks from damage due to overpressure or vacuum, significantly reducing costly product evaporation losses and minimizing atmospheric contamination from toxic vapors. Key strengths include "cushioned air" seating, fluoropolymer diaphragms to prevent sticking, and self-draining housings with drip rings to protect seating surfaces from condensate and freezing.
| Model | Sizes (inches) | Pressure Settings | Vacuum Settings | Key Feature |
|---|---|---|---|---|
| Groth 1200A | 2-12 | 0.5 oz/in² to 15 psig | 0.5 oz/in² to 12 psig | Weight-loaded, cushioned air seating, self-draining housing |
| Groth 1201B | 2-12 | 1 psig to 15 psig | 0.5 osig to 12 psig | Spring-loaded version of 1200A for higher pressure |
| Groth 1220A | 2-12 | 0.5 oz/in² to 15 psig | 0.5 oz/in² to 12 psig | Pipe-away feature for remote vapor discharge |
| Groth 12E-TWW-0 | 2-12 | 0.5 osig to 24 osig | 0.464 osig to 24 osig | 10% overpressure technology, ultra-tight sealing, higher flow capacity |
| Groth 12F-TSW | 2-12 | 1 psig to 15 psig | 0.464 osig to 24 osig | Spring-loaded, superior sealing, industry-leading flow rates |
| Groth 1400 Series | 2-12 | 7.0 InWC to 15 psig | Not specified (w/ vacuum breaker) | Pilot-operated for increased efficiency and reduced evaporation losses |
Competitive Models
FRAMO is a Cargo Pump model, coded ^KAAA. Typical service: support role in cargo; installed across most merchant fleet s…
USA - Known for manufacturing portable UTI meters (Ullage Temperature Interface) and closed gauging systems for tankers.
Hanla Level vapour-emission control system (VECS) — collects and controls cargo-tank vapours during loading per MSC/vapo…
DongHwa Entec shell-and-tube tank-cleaning heater (~35 m² heating surface) — heats sea / wash water for cargo-tank crude…
Send enquiry
Send an enquiry to the manufacturer of ^KAPG Groth Corporation. One broadcast per day.
Contribute or correct
Spotted a missing or incorrect entry? Let the maintainers know. Zulu Code is open under CC BY 4.0 — every correction strengthens the standard for the whole industry.
Code map
^K A P G │ │ │ └── Model: Groth Corporation │ │ └───── Make: Pressure-Vacuum (PV) Valves │ └──────── Equipment: Tankers (Oil & Gas) └─────────── System: Cargo