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Product Overview:

The Carraro UBA HHP is a high-pressure, spring-piston loaded, direct‑operated pressure regulator - designed for both pressure reduction and as a relief or back-pressure valve in demanding process environments.

Key characteristics include:

  • Direct-acting, spring-piston design (self-actuated, no pilot needed)
  • Suitable for high-pressure applications (ANSI 2500 rating)
  • Functions as a pressure reducer, relief valve, or back-pressure regulator
  • Constructed in stainless steel (316SS) or Monel for corrosion resistance
  • Internal pressure sensing - compact, rugged, and simple to install

In short, the UBA HHP is a robust, high-performance pressure regulator engineered for reliable control in critical, high-pressure systems.

Specification
Function:
Reduction, Direct acting
Diameters:
From ¼” up to 2″ (DN ¼” only with threaded end.)
Connection Diameters:
From ¼” up to 2″
Connection Type:
Threaded ends NPT-F, Flanged ANSI (on request)
Max Rating:
ANSI 2500
Body Material:
Available in stainless steel (316SS) or Monel construction
CV:
From 0.31 – 2.11
Trim Material:
Set Pressure Range:
Max Set Pressure Range:
Max Upstream Pressure:
300 barg
Regulated Intervals:
46 – 194 barg. For higher or lower pressures contact our technical department
Seat:
Single
Diaphragms:
Max Inlet Pressure:
Regulated Pressure Range:
Min Temperature:
With HNBR seals - 25 °C, with FKM (Viton®) seals – 10 °C.
Max Temperature:
With HNBR seals: up to +120 °C, with FKM (Viton®) seals: up to +200 °C
Lever Options:
NR Of Nozzles:
Rangeability:
Pilot Circuit:
Tightness Class:
Class IV for metal seat. Class VI for soft seat.
Max Liquid Flow:
AP:
Pressure Rating:
Standard Sizes
Standard Forging ASME Materials

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