STAP is a high-performing differential pressure controller that keeps the differential pressure over the load constant. This delivers accurate and stable modulating control, ensures less risk of noise from control valves, and results in easy balancing and commissioning. STAP’s unrivalled accuracy and compact size make it particularly suitable for use on the secondary side of heating and cooling systems.
Pressure relief cone
Ensures accurate differential pressure control.
Adjustable set-point and shut-off function
Delivers desired differential pressure ensuring accurate balancing. Shut-off function makes maintenance easy and straightforward.
Measuring points with drain option
Simplifies the balancing procedure, and increases its accuracy.
Technical description - 15-50mm
Application:
Heating and cooling systems.
Functions:
Differential pressure control
Adjustable Δp
Measuring point
Shut-off
Draining (accessory)
Dimensions:
DN 15-50
Pressure class:
PN 16
Max. differential pressure (ΔpV):
250 kPa
Setting range:
DN 15 - 20: 5* - 25 kPa
DN 32 - 40: 10* - 40 kPa
DN 15 - 25: 10* - 60 kPa
DN 32 - 50: 20* - 80 kPa
*) Delivery setting
Temperature:
Max. working temperature: 120°C
Min. working temperature: -20°C
Media:
Water or neutral fluids, water-glycol mixtures (0-57%).
Material:
Valve body: AMETAL®
Bonnet: AMETAL®
Cone: AMETAL®
Spindles: AMETAL®
O-rings: EPDM rubber
Membrane: HNBR rubber
Spring: Stainless steel
Spring support: AMETAL® and reinforced PPS
Handwheel: Polyamide
AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.
Marking:
Body: IMI or TA, PN 16/150, DN, inch size and flow direction arrow.
Bonnet: STAP, ΔpL 5-25, 10-40, 10-60 or 20-80.
Connection:
Female thread according to ISO 228, thread length according to ISO 7-1.
Technical description - 65-100mm
Application:
Heating and cooling systems.
Functions:
Differential pressure control
Adjustable Δp
Measuring points
Shut-off
Dimensions:
DN 65-100
Pressure class:
PN 16
Max. differential pressure (ΔpV):
350 kPa
Setting range:
20* - 80 kPa resp 40* - 160 kPa.
*) Delivery setting
Temperature:
Max. working temperature: 120°C
Min. working temperature: -10°C
Media:
Water or neutral fluids, water-glycol mixtures (0-57%).
Material:
Valve body: Cast iron EN-GJL-250 (GG 25)
Bonnet: AMETAL®
Cone: PTFE coated AMETAL®
Spindles: AMETAL®
O-rings: EPDM rubber
Seat seal: Plug with EPDM O-ring
Membrane: Reinforced EPDM rubber
Spring: Stainless steel
Handwheel: Polyamide
AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.
Surface treatment:
Valve body: Epoxy painting.
Marking:
Body: TA, PN 16, DN, CE, 250 CI, flow arrow and casting date (year, month, day).
Bonnet and handwheel: Label with STAP, DN, ΔpL 20-80 resp 40-160 kPa and bar code.
Face to face length:
ISO 5752 series 1, BS 2080
Flanges:
ISO 7005-2.
