Regulator Cressi MC9 XS Compact PRO

About Cressi MC9 XS Compact PRO Regulator

This premiere travel regulator packs maximum performance into minimum space. A true featherweight second stage, the XS Compact is built from durable non-corrosive lightweight techno-polymers to eliminate jaw fatigue. Compact shape reduces weight and in-water drag. The second stage has a dependable downstream demand valve mechanism. The flow of air is channeled to the mouthpiece by injection, creating a venturi effect enhancing the performance. The 2nd stage comes with a flow deviator that acts on the venturi effect, with dive/pre-dive adjustment function. Large soft purge cover allows easy clearing of 2’nd stage nearly all of the face acts as a purge button for easy access and fast clearing. Streamlined exhaust tee directs bubbles to the side for a clear field of view and a comfortable silicone mouthpiece for added comfort on long dives. Easy to pack and easy to dive, the XS Compact is a great 2’nd stage regulator. 

The balanced 1st stage MC9 SC hyper-balanced diaphragm actuated 1st stage has a lightweight body covered by a protective techno-polymer elastomer shell. The regulator is equipped with four low pressure 3/8″ threaded and two high 7/16″ threaded pressure ports. Internally the 1st stage is coated with an anti-friction anti-corrosion material that reduces resistance and allows the critical components to move freely. This makes the components perform and last longer between annual servicing and increases performance. The balanced diaphragm, chrome plated marine brass first stage regulator is inherently environmentally sealed. The benefit of this type of first stage design is that none of the delicate internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants can cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance. The 1st stage MC9 – SC is identical to model MC9, but with a special seal chamber (SC) which completely isolates the diaphragm and spring from contact with water. Ideal for diving in waters that are rich in suspension and mineral salts, for archaeological work, for potholing and diving in cold waters. 

Research on internal air passages and incorporating a special assist chamber has lowered the drop of intermediate pressure upon inhalation and has kept this drop at a minimum, guaranteeing higher performance in any situation. Hyper-balancing allows for an increase of the intermediate pressure at maximum depths and when experiencing low pressure in the Scuba cylinder, offering higher performance at maximum depths and during the ascent phase of the dive. Regulator weighs 33.26 oz. (943 g) with the hose, and comes with an owner’s manual. Regulator is Italian made and certified to EN250/2014 standards

TECHNICAL FEATURES 1ST STAGE

• Balanced diaphragm (seal chamber for MC9SC)
• 2 outlets HP 7/16 UNF
• 4 outlets MP 3/8 UNF
• Service pressure: 300 bar (4350 psi) DIN version,
  232 bar (3365 psi) Yoke version
• Calibration pressure: 10 Bar
• Brass body Electroless Nickel plated
• High capacity conical filter electroless nickel plated
• Aisi 316 removable nozzle
• Hyper-balancing
• Anti-pressure drop pneumatic spring
• Setting spring: stainless steel with micropeening treatment
• Replaceable cylinder with anti-friction
  and anti-corrosion properties
• Elastomer protector
• Flow rate: 4500 l/min
• Yoke version weight: 650 gr
• Din version weight: 510 gr

TECHNICAL FEATURES 2ND STAGE

• Downstream system
• Adjustable venturi effect
• Patented antifriction lever
• Thermoconductive
  technopolymer body
• Big purge button
• Anti-scratch surface
• Bayonet-type cap holder
  with security lock
• Stainless steel cover
• Removable exhaust tee without tools
• Weight without hose: 140 gr

COMBINATION PERFORMANCE

• Average Cracking effort 7.5 mbar
• Average breathing effort 1.2 J/l
• JACKETED HOSE extremely light and flexible weight: 153 gr
  CERTIFICATION EN250/2014

Cressi MC9 XS Compact PRO Regulator Features:

• Cressi Compact Pro MC9 SC Regulator:
• Regulator Weight: 33.26 oz. (943 g) w/Hose
• Lightweight Jacketed 3/8″ Threaded Low Pressure (LP) Hose
• Premiere All Environment Travel Regulator
• Packs Maximum Performance into Minimum Space
• Certified to EN250/2014 Standards
• Owner’s Manual
• Manufactured in Italy
• 2’nd Stage: Cressi XS Compact
• Reliable Downstream Demand Valve
• Large Soft Purge Cover: Easy to Clear
• Comfortable Silicone Mouthpiece
• Venturi Effect for Enhancing Performance
• Compact Shape: Reduces Weight and In-Water Drag
• Construction: Durable Non-Corrosive Lightweight Techno-Polymers
• Lightweight Design & Silicone Mouthpiece: Less Jaw Fatigue
• Streamlined Exhaust Tee: Directs Bubbles for Clear Field of View
• 1’st Stage: Cressi MC9 SC
• Hyper-Balanced Diaphragm Design
• Two 7/16″ Threaded High-Pressure Ports
• Four 3/8″ Threaded Low-Pressure Ports
• Body: Chrome Plated Marine Brass
• Shell: Techno-Polymer Shell Protect Body
• Lightweight and Compact First Stage
• Self-Lubricating Internal Coating
• Anti-Pressure Drop Pneumatics
• Inherently Environmentally Sealed
• Delicate Internal Parts Not Exposed-to-Contaminants
• Special Seal Chamber (SC)
• Completely Isolates Diaphragm & Spring from Contact with Water
• Ideal for Diving in Waters:
  Rich in Suspension and Mineral Salts
  Archaeological Work
  Potholing and Diving in Cold Waters
• Requires Less-Maintenance

Cressi XS Compact PRO 2’nd Stage Regulator Features:

COMBINATION PERFORMANCE

• Average Cracking effort 7.5 mbar 
• Average breathing effort 1.2 J/l

JACKETED HOSE
extremely light and flexible weight: 153 gr

CERTIFICATION
EN250/2000 for cold water

Complete combo DIN or Yoke regulator set comprising Cressi MC9-SC balanced diaphram first stage regulator and Cressi XS Compact Pro second stage regulator.

Technical Characteristics of the 2nd stage XS Compact Pro with 1st stage MC9-SC.

• Average breathing labour: 01.2 J/l.
• EN250/2000 certification for cold water
• Weight without hose 140 g

(*) Values measured in compliance with standard UNI EN 250.

The second stage comes complete with a black coloured 76 cm long rubber regulator hose.

TOTAL WEIGHT
XS COMPACT PRO MC9-SC INT hose included: 943 gr

Total expected travel weight

• Cressi Ellipse Balanced MC9-SC 1st Stage – DIN 833 gm (with hose)
• Cressi XS Compact Pro 2nd Stage 140 gm (without hose)
• Light Weight Jacketed Hose 153 gm

Cressi Compact Pro MC9 SC Regulator Specifications:

1’st Stage Type
Balanced Diaphragm

LP Ports
Four 3/8″ Thread

HP Ports
Two 7/16″ Thread

Adjustable 2’nd Stage
Yes, Dive/Pre-Dive Venturi Adjustment Switch

2’nd Stage Type
Downstream Demand Valve

Materials
First Stage: Chromed Brass, Techno-Polymer Elastomer Shell, Second Stage: Techno-Polymers

Hose Thread
3/8″

Total Weight
33.26 oz. (943 g) w/Hose

Weight [with packaging]
3.1 lb