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
Features a broad install angle with full drainability in multiple orientations

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 ‘Technical 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", 0.75", 1.0", 1.5"
Inlet/outlet Connections	Hygienic clamp, Tube end
Max. operating pressure	10 bar
Max. operating pressure	150 psi
Operating temperature range	-35 to 135 °C
Operating temperature range	-30 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
Weight	1.5 - 5.6 lbs

Block-and-bleed valves dimensions

Block and bleed valve dimensions
Line x Branch Size (inches)	A		B		C		D		E		F
Line x Branch Size (inches)	mm	in	mm	in	mm	in	mm	in	mm	in	mm	in
0.5 x 0.5	110.5	4.35	43.2	1.70	0.0	0.00	31.5	1.24	69.9	2.75	67.3	2.65
0.75 x 0.5	114.8	4.52	48.8	1.92	2.5	0.10	38.1	1.50	95.2	3.75	69.9	2.75
0.75 x 0.75	133.4	5.25	67.3	2.65	0.0	0.00	41.4	1.63	94.0	3.70	65.5	2.58

Weights

Block and bleed valve weights
Size (inches)	Valve Body		Total Weight with Manual Actuator
Size (inches)	kg	lb	kg	lb
0.5 x 0.5	0.68	1.50	1.20	2.60
0.75 x 0.5	1.00	2.2	2.80	6.20
0.75 x 0.75	2.50	5.60	4.20	9.30

Materials of construction

Material

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

Literature

Brochures

ASEPCO weirless radial diaphragm valves (US).pdf
PDF - 605.5kb

Datasheet

ASEPCO block-and-bleed valve datasheet (EN).pdf
PDF - 167.9kb

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

Order Information

Product codes

Block-and-bleed valves product codes

Model Code	Part Description
BC05-125-1	Weirless valve 0.5”, Block & Bleed, 316L Clamp-end inlet, Clamp-end outlet, 2.75” Face-to-Face & 0.5” bleed valve with clamp-end outlet, 20 micro‑inch Ra surface finish, electropolished and passivated, includes body/actuator clamp
BC08-125-1	Weirless valve 0.75”, Block & Bleed, 316L Clamp-end inlet, Clamp-end outlet, 3.75” Face-to-Face & 0.5” bleed valve with clamp-end outlet, 20 micro‑inch Ra surface finish, electropolished and passivated, includes body/actuator clamp
BC08-126-1	Weirless valve 0.75”, Block & Bleed, 316L Clamp-end inlet, Clamp-end outlet, 3.75” Face-to-Face & 0.75” bleed valve with clamp-end outlet, 20 micro‑inch Ra surface finish, electropolished and passivated, includes body/actuator clamp