{"id":5273,"date":"2024-03-25T21:42:28","date_gmt":"2024-03-25T20:42:28","guid":{"rendered":"https:\/\/rr-rieger.com\/ventile\/hygienic-double-seal-valves-n4\/"},"modified":"2025-12-22T14:21:23","modified_gmt":"2025-12-22T13:21:23","slug":"hygiene-doppeldichtventile-n4","status":"publish","type":"ventile","link":"https:\/\/rr-rieger.com\/en\/valves\/hygiene-doppeldichtventile-n4\/","title":{"rendered":"Hygienic double seal valves N4"},"template":"","meta":{"product_description":"

RIEGER hygienic double seal valves N4 are piggable or can be used for highly viscous media.
They offer reliable protection for your product by separating incompatible products in a leak-proof manner. They have proven their worth worldwide in plants in the food and beverage industry.<\/p>\n

The design of the one-piece solid valve body and the two radial seals of both valve seats, together with the balanced valve discs, enable completely safe CIP\/SIP cleaning and therefore extremely high safety for your products.<\/p>\n

On this model, the two valve seats can be lifted alternatively.<\/p>\n\n\n\n
RIEGER double seal valves DD - piggable<\/b><\/p>\n

The development of the RIEGER double sealing valve DD to piggable variant N4 allows users great savings in resources.<\/p>\n

The cost savings of product, water, cleaning agents, environmental pollution recoup the investment within a very short time .<\/td>\n

<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","technical_data":"\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
Sterilization temperature<\/td>\n		<\/td>\n130 \u00b0C*
150 \u00b0C*<\/td>\n<\/tr>\n
Press<\/strong><\/td>\nClosing pressure<\/p>\n

Control air pressure<\/td>\n

max. 10 bar top.
bottom line see catalog<\/p>\n

min 6 bar -
max. 10 bar<\/td>\n<\/tr>\n

<\/td>\n<\/td>\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
*dependent on operating parameters<\/div>\n","benefits":"