{"id":5289,"date":"2024-03-25T23:02:00","date_gmt":"2024-03-25T22:02:00","guid":{"rendered":"https:\/\/rr-rieger.com\/ventile\/hygiene-overflow-valves-type-er\/"},"modified":"2025-12-22T14:39:19","modified_gmt":"2025-12-22T13:39:19","slug":"hygiene-overflow-valves-type-er","status":"publish","type":"ventile","link":"https:\/\/rr-rieger.com\/en\/valves\/hygiene-overflow-valves-type-er\/","title":{"rendered":"Hygiene overflow valves type ER"},"template":"","meta":{"product_description":"

The Rieger type ER overflow valves have evolved from the type E8<\/a> and form the \"Reverse Acting\" series of Rieger overflow valves. These type ER overflow valves can be opened pneumatically for CIP cleaning. You can also change the setting pressure manually within the available setting range. This type of valve with its housing configuration is used to protect a pump with a bypass line.<\/p>\n","technical_data":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Material<\/strong><\/td>\nin contact with the product
optional
not in contact with the product<\/td>\n		1.4404\/AISI316L
1.4435\/AISI316L
1.4301\/AISI304<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Seals<\/strong><\/td>\nO-rings\/seals<\/td>\nEPDM
(others on request)<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Temperatures<\/strong><\/td>\nmaximum<\/td>\n<\/td>\nEPDM<\/td>\n<\/tr>\n
<\/td>\nContinuous operating temperature<\/p>\n

Sterilization temperature
<\/td>\n

<\/td>\n130 \u00b0C*<\/p>\n

150 \u00b0C* for a short time
(approx. 20 min)<\/td>\n<\/tr>\n

<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Pressures<\/strong><\/td>\nPossible set pressure for O-ring version<\/td>\n0.5 - 10 bar (higher pressures on request)<\/td>\n<\/tr>\n
<\/td>\nPressure range depends on installed spring<\/td>\nSpecify desired setting pressure when ordering<\/td>\n<\/tr>\n
<\/td>\nControl air pressure<\/td>\nmin. 6 bar -
max. 10 bar<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
Surfaces<\/strong><\/td>\nin contact with the product
optional<\/p>\n

not in contact with the product<\/td>\n

Ra \u2264 0.8 \u00b5m
e-polished, other surfaces on request
Ra \u2264 1.6 \u00b5m<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Connections
Standard-
Pipe classes<\/strong><\/td>\n		DIN 11850-R2 (DIN 11866 A)
O.D.-Tube (DIN 11866 C)
DIN EN ISO 1127 (DIN 11866-B)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n

*dependent on operating parameters<\/div>\n","benefits":"\n\n\n\n\n\n\n
Structure of the valve<\/b><\/td>\nSolid valve body<\/p>\n

No dead spaces<\/p>\n

completely idle<\/p>\n

Many installation positions possible<\/td>\n<\/tr>\n

Absolute product protection<\/strong><\/td>\nComplete separation from the environment<\/p>\n

no sump, no dome<\/td>\n<\/tr>\n

Service friendliness<\/b><\/td>\nGasket replacement without special tools<\/p>\n

Short downtimes<\/p>\n

Optimal to clean<\/td>\n<\/tr>\n

Economic efficiency<\/b><\/td>\nStandard seals<\/p>\n

Minimal maintenance costs<\/td>\n<\/tr>\n

Additional certificates<\/b><\/td>\nalso possible in 3-A version<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","electronic_feedback":"

For seamless position monitoring from 0-100 % as soon as the valve responds for the first time, we recommend B\u00fcrkert positioners with (0) 4-20 mA<\/b>.<\/p>\n