Valves - inline valves

Block-and-bleed valves

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Overview

ASEPCO Weirless Radial diaphragm™ block-and-bleed valve

A reliable block-and-bleed valve eliminating the usual dead leg between seal points.

Features and benefits

Easy to assemble and inspect
Eliminates sources of contamination—reducing cleaning time
Clean, self-draining design
Block body design eliminates dead leg area
Patented radial diaphragm, eliminates entrapment for easy cleaning
Up to 80% reduction in maintenance costs
Never needs re-tightening or adjustment

Technical summary

Mounting type	Clamp, In-line
Max. operating pressure	10 bar
Max. operating pressure	150 psi
Compatible actuators	Fail closed, Fail open, Manual, Pneumatic
Compatible diaphragms	EPDM
Surface finish options	Electropolished, Max 10 micro-inch Ra (0.25 µm Ra), Max 15 micro-inch Ra (0.375 µm Ra), Max 20 micro-inch Ra (0.5 µm Ra)
Certification and compliance	ISO 9001
Standards	ASME BPE, CE-PED

Technical Summary table lists features available within the range. See ‘Specifications’ tab for model specific information.

Performance

Flow rates
Size (inches)	Cv at 1 psi (0.07 bar)
Size (inches)	LPM	USGPM
0.5 x 0.5	17.8	4.70
0.75 x 0.5	36	9.51
0.75 x 0.75	36	9.51

Specifications

Technical specifications

	Block-and-bleed valves
Mounting type	Clamp, In-line
Flow rate	17.8 - 36 l/m
Flow rate	4.7 - 9.5 USGPM
Mounting sizes	0.5 in, 0.75 in, 1.0 in, 1.5 in
Inlet/outlet Connections	Hygienic clamp, Tube end
Max. operating pressure	10 bar (150 psi)
Operating temperature	-35 °C to 135 °C (-30 °F to 275 °F)
Compatible actuators	Fail closed, Fail open, Manual, Pneumatic
Compatible diaphragms	EPDM
Surface finish options	Electropolished, Max 10 micro-inch Ra (0.25 µm Ra), Max 15 micro-inch Ra (0.375 µm Ra), Max 20 micro-inch Ra (0.5 µm Ra)
Certification and compliance	ISO 9001
Standards	ASME BPE, CE-PED
Weight	0.68 - 2.5 kg (1.5 - 5.6 lbs)

Materials of construction

Material

Hastelloy, Stainless steel 316L, Stainless steel AL-6XN

Documentation

Brochures

ASEPCO weirless radial diaphragm valves (EN).pdf
PDF - 600.3kb

Datasheets

Block-and-bleed valves datasheet (EN).pdf
PDF - 497.1kb

Manuals

Inline valve manual (EN).pdf
PDF - 1.5mb

Actuators

AKS actuator series

Hygienic design with laser-etched serial numbers for full product traceability
Lightweight plastic construction with 304 SS sleeve and Nylon handle
Visual indication of open/closed status
150 psig maximum sealing force

Diaphragms

Available in silicone and EPDM Extensively tested to ensure long service life Patented, leak-free static shoulder seal High performance with minimal maintenance